540-599 Natural Sciences: Arranged by Dewey Decimal Classification

Chem4Kids. Matter, Elements, Atoms, Math, and Reactions. Clear, simple explanations of each subject matter complete with colorful illustrations.

Chemistry Biographies from AllRefer.com.

Chemistry Guide. From High School Hub. Links to: General Chemistry, Periodic Tables, Organic Chemistry, Laboratory Experiments, Chemistry Review, as well as Learning Activities and Interesting Stuff.

Chemistry of the Week. Fact sheets by Professor Bassam Z. Shakhashiri. Topics include Aluminum, Ammonia, Arsenic, Carbon Dioxide, Chlorophyll, Ethanol, Fats and Oils, Hydrogen, Lime, Liquid Crystals, Mercury, Methane, Ozone, Polymers, and many more.

EnvironmentalChemistry.com. Site includes over 300 pages of educational resources on chemistry, environmental and hazardous materials, anatomy of the atom, detailed periodic table of elements, geologic timeline, chemistry & environmental dictionary, Chernobyl, guide to handling household chemicals, and more.

SparkNotes: Chemistry Study Guides. Contents: Organic and Inorganic Chemistry, Units, Scientific Notation, and Significant Figures, The Periodic Table and Atomic Structure, Bonding, Stoichiometry (study of laws of chemical combination by weight & volume), Gases, Solutions, Acids and Bases, Electrochemistry, and Reaction Kinetics. Caution: Lots of popu-up ads.

540.1 Alchemy, (Hermetic art and philosophy), (Transmutation of metals), (Philosophers’ stone)

Alchemy from Sacred-texts.com. Original documents of alchemy for the serious reader.

Alchemy Web Site. Alchemy is the medieval attempt to change base metals into gold. This massive site includes over 90 megabytes of information on alchemy in all its facets, with over 2000 images, over 200 complete alchemical texts. Includes 18 downloadable midi files of alchemical music.

546 Chemical elements

Chemical Elements.com – An Online Interactive Periodic Table of the Elements. Basic Info: Name, Symbol, Atomic number, Atomic Mass, Melting Point, Boiling Point, Number of Protons/Electrons, Number of Neutrons, Classification, Crystal Structure, Density, Color. Atomic Structure (color diagram). Isotopes. Facts: Date of Discovery, Uses, Where obtained.

Periodic Table of the Elements from American Chemical Society – ACS Publications.

The Periodic Table – 1923 & 1998. A little bit of the history of the Periodic Table. Since 1923, 26 elements have been added to the periodic table.

WebElements Periodic Table (Professional Edition) and WebElements Periodic Table (Scholar Edition). Allows you to view some Virtual Reality and Quick Draw 3D images both for element crystal structures and for periodic properties. Also allows viewing of various other kinds of 3D images, including molecules.

551.21 Volcanoes, (Eruptions)

FEMA – Fact Sheet: Volcanoes. Informing the Public About Hazards from U.S. Department of Homeland Security: Federal Emergency Management Agency (FEMA). “Volcanic eruptions can hurl hot rocks for at least 20 miles. Floods, airborne ash, or noxious fumes can spread 100 miles or more. If you live near a known volcano, active or dormant, be ready to evacuate at a moment’s notice.”

How Volcanoes Work. Describes the science behind volcanoes and volcanic processes.

Michigan Technological University Volcanoes Page. Purpose of this site is to provide scientific and educational information that can lead to hazard mitigation. Topics include: What is a volcano? Which are earth’s active volcanoes? Volcanoes of Canada, Volcanic Hazards Mitigation, Remote Sensing of Volcanoes, Satellite Detection of eruptions, Volcanic Humor, and more.

Volcano World. Information on volcanoes from University of North Dakota. Includes:

Volcanoes from Australian Government, Geoscience Australia. What is a volcano? Types of volcanoes, Predicting eruptions, Volcanoes in Australian territory, The Pago PNG volcano, Volcano facts, photos and links.

Volcanoes in the North and Central American Region. Details on individual volcanoes in Canada, Mexico, the United States (indexed by State), and the West Indies.

551.22 Earthquakes, (Seismography), (Seismology)

Browse Photos of the Great Fire and Earthquake of 1906 in California. The San Francisco Historical Photograph Collection contains over 1,700 digitized images of the 1906 Earthquake and Fire.

Earthquakes from Australian Government, Geoscience Australia. What is an Earthquake? Where do earthquakes occur? How are earthquakes detected? Measuring the size of an earthquake, Seismographs and seismograms, Australia on the move (Indian-Australian Plate is slowly moving, carrying the continent with it), and Australian earthquakes.

Earthquakes. Federal Emergency Management Agency (FEMA) for Kids. Earthquakes: Facts and Fiction, History of Big Earthquakes in the U.S., Map of Earthquake Risk States, Earthquake Legends from Around the World, and more.

Earthquakes by Kaye M. Shedlock & Louis C. Pakiser. U.S. Department of the Interior, U.S. Geological Survey (USGS) General Interest Publications. Contents: Introduction, Earthquakes in History, Where Earthquakes Occur, How Earthquakes Happen, Measuring Earthquakes, Volcanoes and Earthquakes, Predicting Earthquakes.

National Earthquake Information Center (NEIC). Earthquake Data, Earthquake Activity in the Last Seven Days, Earthquake Facts, Earthquake FAQs, Common Myths About Earthquakes, Measuring Earthquakes (Richter Scale), Seismographs, Historic Earthquakes & Earthquake Statistics, Visual Glossary, and more.

Plate Tectonics, the Cause of Earthquakes.

Recent Earthquakes in California and Nevada – Index Map. Big Earthquakes, All Earthquakes, Special maps for Los Angeles, San Francisco, Long Valley, and Parkfield.

551.46 Ocean, Oceanography, (Oceans), (Sea)

Canada’s Oceans Strategy: Oceans Facts.

Ocean Explorer. Explore the Ocean Realm with the U.S. National Oceanic and Atmospheric Administration (NOAA). Categories: Explorations, Projects, Gallery, Technology, Library, Education, and History. See also Timeline of ocean exploration 1807-1945.

Oceans Alive! All about oceans. Contents: The Water Planet (Physical Features of the Ocean, Changing Oceans, Water Cycle, Ocean Profiles), Oceans in Motion (Currents, Wind and Waves, Ebbs and Flows of the Sea), Life in the Sea (Predators and Prey), Scientist at Sea (Underwater Exploration, Remote Sensing, Satellite Images), plus Resources.

551.47 Tsunamis, Ocean waves, (Earthquake sea waves), (Seismic sea waves), (Tidal waves, Seismic)

Asia Quake Disaster – In Depth from BBC

Disaster in Asia – CBC News In Depth.

Fact Sheet: Tsunamis from Cambridge Emergency Management Department.

South Asia: Tsunami and Earthquake from Center for International Disaster Information (CIDI). South Asia Tsunami and Earthquake Situation Reports, Disaster Response – InterAction members listed here are accepting contributions for assistance they are providing to those affected by the eathquake and tsunamis in South Asia. InterAction is a coalition of over 160 US-based private relief, international development and refugee assistance organizations working.

Surviving a Tsunami – Lessons from Chile, Hawaii, and Japan from U.S. Geological Survey.

Tsunami Disaster from CNN.

Tsunami FAQ from Pacific Tsunami Museum. Includes a Tsunami Glossary.

Tsunami: Great Wave in PDF explains that tsunami (pronounced soo-NAH-mee) is a Japanese word meaning “harbor wave”. Tsunamis (often erroneously called tidal waves) are an infrequent yet serious hazard in the Pacific. Other Brochures from West Coast & Alaska Tsunami Warning Center, Palmer, AK, include: TsunamiReady Brochure, Tsunami the Great Waves, Tsunami Safety Advice, Tsunami and Earthquake Statistics, TsunamiReady Reference Card.

Tsunami Safety Rules from International Tsunami Information Center, Honolulu, HI. See also Tsunami Library – includes Overviews, Glossary, Great Waves, Historical Events, Online Documents, FAQs, Fact Sheets, Research Efforts, Tsunami Links, Videos Available for Order, Pacific Tsunami Warning Center Bulletins for current tsunami events.

University of Southern California Tsunami Research Group: Locations of past tsunamis around the world – Click on a location on World Map to see details of each tsunami disaster, includes photos. Tsunami Videos and Animation – Simulations and footage of tsunami activity.

551.5 Meteorology

World Meteorological Organization. A United Nations Specialized Agency. Topics range from weather prediction to air pollution research, include ozone layer depletion studies, tropical storm forecasting, and more. Links to worldwide meteorological sites A-Z by countries.

551.55 Hurricanes, Cyclones, Storms, Typhoons, (Winds)

See also 363.34 Disaster relief, (Disaster preparedness), (Emergency preparedness)

CNN.com Special Reports – Hurricane Season 2005.

Hurricane Basics from National Hurricane Center (NHC), National Oceanic & Atmospheric Administration (NOAA). Includes Hurricane History 1900-2004, Tornadoes, Inland Flooding, Forecast Process, Be Prepared – Hurricane Preparedness, and more.

Worldwide Tropical Cyclone Names from National Hurricane Center, Miami, FL. Atlantic Names 2005-2010, Eastern North Pacific Names 2005-2010, Central North Pacific Names Lists 1-4, Western North Pacific Names – List of Country Contributors and Name Lists I-V, Australian Region Names, Fiji Region Names Lists A-E (Standby), Papua New Guinea Region Names Lists A-B, Philippine Region Names Lists 1-4 rotate from 2001-2016 plus an Auxiliary List, Southwest Indian Ocean Names 2004-2005, 2005-2006.

551.56 Lightning

Kids’ Lightning Information and Safety by Sabrina, a child who was hit by lightning along with her parents. Topics covered: What is lightning? What does it feel like to be hit by lightning? Where can lightning strike? How can you tell how far away a storm is? Learn also about lightning safety at home and at school.

Lightning Safety from WeatherEye.

Lightning Safety Rules & First Aid from Oahu Civil Defense Agency, City and County of Honolulu, Hawaii.

Lightning Safety Quiz from Museum of Science, Boston.

Lightning Injury Research Program by Mary Ann Cooper, MD, University of Illinois at Chicago. Includes Lightning Injury Facts: Myths, Miracles, and Mirages, Medical Aspects of Lightning , Safety Guidelines, and more.

Lightning Kills, Play It Safe and Lightning – The Underrated Killer from National Oceanic & Atmospheric Administration (NOAA), National Weather Service. Includes handouts, indoor and outdoor safety tips, medical facts, history, survivor stories, photos, teacher tools and more. See Site Map.

A Lightning Primer from NASA. Introduction, History, Characteristics of a Storm: Lightning, Thunder, Clouds & Rain, Hail, Types of Lightning Discharges, Future of Lightning Detection in Space, Lightning Safety including common dangerous activities associated with lightning strikes, Treatment, and more.

Personal Lightning Safety Tips from National Lightning Safety Institute (NLSI).

Saving Lives, Protecting Property from Lightning Protection Institute (LPI).

551.6 Weather, Weather forecasting

AccuWeather.com. Today’s Weather Headlines, Five Day Forecast for US cities and towns, or major cities world wide, may be personalized. Other weather related categories include: Travel, Health, Marine, Golf, Gardening, Meteorologist, Aviation, Agriculture, Maps, Satellite, News and Features, and Video.

Canadian Weather. Choose a Province, Territory, City or Marine Symbol to see detailed weather.

Live Weather Images. Provides Current Weather Images (USA), Forecast Maps, European Images, Bodies of Water, Hurricanes/Tropical Storms, Seismic Activity, Storm Warnings, and more. Interactive Weather Page allows you to calculate sunrise and sunset times, heat index, wind chill values, etc. Includes links to weathercams worldwide and weather jokes.

NOAA National Weather Service. Weather across the United States, from National Oceanic and Atmospheric Administration. Includes Warnings, Observations, Forecasts, Weather Safety, Past Weather, Glossary, and more.

WW2010 – The Weather World 2010 Project. A massive site. Popular features include Hurricanes, Clouds and Precipitation, and El Niño. From the Current Weather section you can view forecasts for the United States and print out weather maps with exquisite colors. An Index helps you find weather topics from A-Z quickly.

World Weather Information Service. Site presents OFFICIAL weather forecasts and climatological information for selected cities supplied by National Meteorological Services (NMSs) worldwide.

553.8 Diamonds, Precious stones, (Gemstones), (Jewels)

History of Diamonds. Loose diamonds were first mined in India thousands of years ago. However, most diamonds are found in Africa today. Learn also about the many different Shapes of diamonds, seven different types of Diamond Settings, the Four C’s: carats, clarity, color and cut, as well as how to buy and care for diamonds.

The Nature of Diamonds. Excellent resource from American Museum of Natural History with color illustrations, photos, charts, tables. Contents: What is diamond? Diamond: Vital Statistics, Origins, History, Mining & Distribution, Industry & Technology, and Bibliography.

Why Diamonds Are So Valuable. Diamonds were born 3.4 billion years ago 150 miles below the earth’s surface. It takes 250 tons of ore to retrieve a one carat diamond (cut weight). Other information includes Guide to Diamond Quality, Making Sense of Diamond Cut, Diamond Definitions, History of Brilliance: Beyond the Four C’s, and Caring for Your Diamonds.

560 Fossils, Prehistoric animals, Extinct animals, (Peleontology)

Frequently Asked Questions about Paleontology. Questions include: What is paleontology? What are the practical uses of paleontology? How can I find fossils in my area? Plus links to other paleontology sites. See: Learning from the Fossil Record for related articles and additional resources.

570 Biology, Life sciences

BIODIDAC. A bank of digital resources for teaching biology. Excellent collection of over 5000 digital images (line drawings and photographs), videos, and animations. Use of material must be non-commercial, acknowledged and registered. Categories: Organismal Biology, Human Biology, and Histology.

Biology. Characteristics of Life, Overviews of Cells, Metabolism, Homeostasis, Water (Transport In and Out of Cells), Evolution, Taxonomy, and Links to other Biology resources.

Biology 100 On-Line Course Materials from Wayne’s Word. Numerous topics covered, include exercises and illustrations: The Cell, Cell Division, Mitosis & Meiosis, DNA & RNA, Genetic Corn, Polygenic Inheritance, Genetic Drift, Life Cycles, Population Growth, Biomes of North America, Five Kingdoms of Life, Major Divisions of Life, Diversity of Flowering Plants, Chemicals of Living Systems, Red-Green Color Blindness Table, Determining A-B-O Blood Types, plus links to DNA, and Plant Genetics.

Biology Guide from High School Hub. Contents: General Biology, Cell Biology, Molecular Biology, Immunology, Human Biology, Ecology Resources (Biological Pest Control, Conservation Biology, Endangered Species, Fish & Wildlife Biology, Marine Biology), More Biology Stuff (Biology Dictionary, Biology Careers, Biology Graphics Gallery, Free Biology Images, Science Fair Projects, Why Files: Life Sciences), and Teaching Biology (Biology Experiments, Biology Lesson Plans, Teaching Evolution).

Biology Links from Harvard.

Biology Websites recommended by Access Excellence, The National Health Museum Resource Center.

BioMed Central: The Open Access Publisher. Over 100 Open Access journals covering all areas of Biology and Medicine.

CELLS alive! Video library relates to microbiology, cell biology, aquatic protozoa, water-borne parasites, infectious disease, and immunology.

Cellular Biology. Contents: Cell Structures & Functions, Prokaryotes vs. Eukaryotes (characteristics of two cell classifications), Types (moneran, protist, fungi, plant, animal), Reproduction (Mitosis & Meiosis), Cell Theory, and Glossary.

Characteristics of life – a very brief introduction.

Classification of Living Things. Contents: Introduction to the Linnaean system of classification used in biological sciences to categorize all living things, the five kingdoms (Monera, Protista, Fungi, Plantae, Animalia), phylum, subphylum, class (includes info on the 7 living classes of vertebrates), subclass, infraclass, quiz at the end of each section, Web expeditions, related Internet sites, and a glossary of terms with sound and color images.

Natural Perspective. Visit a Kingdom: Fungi, Plantae, Animalia, and Protoctista.

PLoS (Public Library of Science) – Biology. A non-profit organization of scientists and physicians committed to making the world’s scientific and medical literature a freely available public resource. The internet and electronic publishing enable the creation of public libraries of science containing the full text and data of any published research article, available free of charge to anyone, anywhere in the world.

SparkNotes: Biology Study Guides. Contents: Cell Structure, Cell Respiration, Cell Reproduction, Molecular Biology, Plants, Microorganism, Evolution, and Animal Behavior.

The Tree of Life Web Project. A collaborative Internet project containing information about phylogeny and biodiversity by biologists around the world. Over 2600 Web pages, site provides information about the diversity of organisms on Earth, their history, and characteristics. Lots of color photos and links. For a start, go to Popular Groups on the Tree of Life.

572.8 Genetic code, Gene mapping, Recombinant DNA, (Genome mapping), (Genetics), (Genetic disorders)

Cloning: How It Works. Special Reports from Guardian Unlimited. See also How Cloning Works from howstuffworks.

DNA (Deoxyribonucleic Acid):

DNA 50

Genes from BBC – Science & Nature. Contents: Who am I? (Inheriting genes, Nature / nurture, Behaviour, Human genome …), Modifying life (Extreme GM, Bioweapons, Designer Babies, Cloning, Breeding …), Future human, Genetically-modified food (Risks & Benefits …), DNA detectives.

Genetic Fact Sheets from Centre for Genetics Education, Sydney, Australia. Topics include: Genes and Chromosomes, When Genes Are Faulty (Mutations), Genetic Disorders, What are Chromosomes? and more.

Genetics Home Reference: Your Guide to Understanding Genetic Conditions. Contents: Help Me Understand Genetics, Browse Genes and Conditions, and What’s New. You can Search the entire site, or Browse Genetic Conditions by Name or Category, or Browse Genes by Name or Category. Includes a Glossary and links to Educational Resources.

The Genographic Project. Human Migration, Population Genetics, Maps, DNA, from National Geographic. Includes Genetics Overview – Anatomy of Our Genes, Genetic Signposts (DNA Recombination, Y Chromozome, Mitochrondrial DNA – mtDNA), Populations Genetics (Mutation, Genetic Diversity, Natural Selection, Genetic Drift, Human Family Tree), Genetics Glossary, Atlas of the Human Journey.

Genome Mapping: A Guide to the Genetic Highway We Call the Human Genome. A Science Primer from National Center for Biotechnology Information. Genetic maps use landmarks called genetic markers to guide researchers on their gene hunt.

Glossaries of Genome / Human Genetics Terms from University of Kansas Medical Center. See also Genetics Education Center and Genetic and Rare Conditions Information Site.

New Genome Comparison Finds Chimps, Humans Very Similar at the DNA Level from National Human Genome Research Institute (NHGRI).

Taiwan breeds green-glowing pigs by Chris Hogg, BBC News, Hong Kong. “The pigs are transgenic, created by adding genetic material from jellyfish into a normal pig embryo. The researchers hope the pigs will boost the island’s stem cell research, as well as helping with the study of human disease.”

574.5 Endangered species, (Rare animals), (Wildlife conservation)

ARKive -Images of Life on Earth. An online Noah’s Ark of digital multimedia portraits of the world’s endangered species. Lots of colorful still photo images, movies, and information on many different species of Mammals, Birds, Reptiles, Amphibians, Fish, Invertebrates – terrestrial & freshwater, Invertebrates – marine, Plants & algae, and Fungi (including lichen).

Endangered Species: The Rarest Info Around. Causes of Endangerment, Why Save Endangered Species? Facts About Endangered Species, Endangered Mammals, Birds & Fish, and more.

The Endangered Species Program from U.S. Fish and Wildlife Service. Contents: Endangered Species Act – History and Evolution, (Endangered Species Act – Summary).

Especies Fact Sheets from KidsPlanet.org. Electronic fact sheets on over 50 species. For each species info includes: Status, Description, Size, Population, Lifespan, Range, Habitat, Food, Behavior, Offspring, Threats, and Protection. Find out What is the Endangered Species Act?

Everything You Need to Know about the Giant Panda. Over 34 years of research by a husband and wife team with a serious love for the Giant Panda are displayed on these remarkable Web pages. Complete with numerous illustrations and photos, the site provides accurate and up-to-date information on the Giant Panda, includes FAQ and Panda stories (legends, poems, and news about Pandas).

574.87 Cells, DNA, Protoplasm, (D.N.A.), (Deoxyribonucleic acid), (Desoxyribonucleic acid)

DNA Learning Center. Gene almanac: Source for timely information about genes in education. Keyword Search box. BioServers: Sequence Server helps you compare and analyze DNA sequences, Allele Server compares and analyzes human populations, Simulation Server lets you examine fluctuations of genotypes. Bioforms help you solve biological problems using real DNA sequences to solve mysteries of the Romanovs and the Neanderthals.

DNA from the Beginning. A simple introduction to DNA giving the basic concept of DNA, with animation, picture gallery, audio/video glossary covering: gene, inherited, and life of Mendel, links to biography of Johann Gregor Mendal (1822-1884), including access to Mendel’s original 1865 paper and pictures of Mendel’s pea traits.

An Introduction to Nucleic Acids. DNA is the basic hereditary material in all cells. Includes diagrams.


576.8 Evolution, (Darwinism), (Origin of species), Mutation (Biology), Natural selection

Evolution from Australian Museum Online. Contents include: What is Evolution? How do species evolve, Evidence for Evolution (Genetics and Molecular Biology, Fossils, Living Species, Humans Speeding Up Nature), Speciation – Evolution of New Species, Inventing Skeletons, Becoming Multicellular, and more.

Evolution from University of California Museum of Paleontology. Explore the theory of evolution (Charles Darwin’s writing). Learn about the history of evolutionary thought. Browse the Talk Origins Archive, a rich source of information about evolution and the evolution/creation controversy.

Evolution Website from BBC Education. Contents: Darwin – the man and his legacy, The Origin of Species by Charles Darwin – An Illustrated Guide Online, Darwin Debate Online debate is over, but transcripts of answers available online, Darwin Debate – TV transcript is also available in full text, plus Life on Earth in 3 parts, Extinction Files, and others.

An Introduction to Evolution (Organismic Evolution). Contents: Evolutionary Theory (Genetics, Natural Selection, Species and Speciation), Evidence of Evolution, The Origin of Life and Human Evolution, The History of the Evolutionary Theory (Darwin), Evolution and Society.

An Introduction to Evolutionary Biology. What is Evolution? Genetic Variation, Natural Selection, Sexual Selection, Genetic Drift, Mutation, Mutant Alleles, Recombination, Gene Flow, Development of Evolutionary Theory, Macroevolution, Speciation, Extinction, plus A Brief History of Life.

The Talk.Origin Archive – Must Read Files. Exploring the Creation/Evolution Controversy. Articles include: Evolution is a Fact and a Theory, Observed Instances of Speciation, Fossil Hominids, plus the complete text online of On The Origin of Species by Means of Natural Selection, or The Preservation of Favoured Races in the Struggle for Life, 1st ed. by Charles Darwin.

579 Microbiology

Microbes.info: The Microbiology Information Portal. Excellent site containing a vast collection of resources including articles, news, frequently asked questions, and quality links pertaining to the field of microbiology. Resources include: General Microbiology, Environmental Microbiology, Food Microbiology, Industrial Microbiology, Medical Microbiology, Veterinary Microbiology, and more.

Virtual Microbiology. The Relevance and History of Microbiology. Microbiology and Bacteriology: The World of Microbes, from Department of Bacteriology, University of Wisconsin, Madison.

World-Wide Web Virtual Library: Microbiology & Virology (Biosciences). Subjects covered include culture collections, databases, Complete list of Biomedical WWW Sites, Biology Internet Resources, and other resources for the microbiologist.

580 Plants, Botany

Botany.com the Encyclopedia of Plants, provides information regarding the general description of plants, various methods of cultivation, indoor or outdoor planting, soil and temperature requirements, pruning, and other important details, means of propagation, and the different varieties and hybrids. Includes a Directory of Plants.

eNature Field Guides. Complete guide to over 4,800 North American plants and animals, with detailed descriptions and photographs. Trees. Wildflowers.

HortiPlex Plant Database contains plant images and data as well as links to information sources, images and vendors at other sites.

Plants Database from National Plant Data Center, United States Department of Agriculture. Contents: Over 100 Plant Characteristics, Plant Classification allows you to generate a hierarchical classification beginning at any taxonomic level, Plant Guides & Fact Sheets, Find Federal and State Threatened and Endangered Plants by Family, Genus, and/or State, plus other related topics.

Writeups and illustrations of economically important plants by Professor Arthur C. Gibson who teaches a course on economic botany entitled “Plants and Civilization” at University of California, Los Angeles. List of 94 plants include: Avocado, Bamboo, Banana, Chili peppers, Cranberry, Date, Fig, Ginger, Jojoba, Kiwifruit, Mango, Marijuana, Olive, Papaya, Quinine, Soybean, Sunflower, Taro, Yams, and others. See also General Botany, Life Forms and Major Plant Groups including Ant Plants, Aquatic Plants, Climbing Plants, Insectivorous plants, Parasitic plants, and others, Major Types of World Vegetation (Biomes).

581.1 Photosynthesis

Photosynthesis by J. Stein Carter. Photosynthesis is the process of converting light energy to chemical energy and storing it in the bonds of sugar. Color illustrations.

Photosynthesis from Ohio State University. Explanation of photosynthesis with diagrams, and a Quiz.

Photosynthesis from Sambal’s Science Web, UK. Photosynthesis is the conversion of carbon dioxide and water into a sugar called glucose using sunlight energy. Oxygen is produced as a waste product.

What is Photosynthesis? Links to articles that discuss photosynthesis. Levels indicated, e.g. elementary, high school, undergraduate, college. Articles include: Introduction to photosynthesis and its applications, Photosynthetic pigments, The photosynthetic process, Bacterial photosynthesis, and Everyday photosynthesis.

Why Do Leaves Change Color in the Fall? Simple explanation of photosynthesis with color illustrations. The way plants turn water and carbon dioxide into sugar is called photosynthesis. That means “putting together with light.” A chemical called chlorophyll helps make photosynthesis happen.

582.13 Flowers, (Roses)

1-800-FLOWERS.COM provides a broad range of gifts including flowers, plants, gourmet foods, candies, gift baskets and other unique gifts to customers around the world by ordering Online at (www.1800flowers.com); by calling 1-800-FLOWERS® (1-800-356-9377) 24 hours a day, seven days a week; or by visiting one of its Company-operated or franchised stores located in major markets, e.g. New York, New Jersey, Los Angeles, Chicago, San Francisco, San Diego, San Antonio, Phoenix and Arlington. Company network includes approximately 1,500 florists across the United States. Check out International Delivery at 1-800-Flowers.com.

All-America Rose Selection – Rose Gardening Tips. Includes United States Zone Map to help you find the average minimum temperature in your state to grow roses, Winning Roses, Designing with Roses, Rose History, Symbolism & Color, Types of Roses, and more.

BloomsUSA. Send flowers and other gift arrangements for any occasion to people anywhere in the world. Your orders are sent today! Order Online at BloomsUSA or Call to order at 1-800-868-9219, 24 hours a day. Occasions include: Special Seasonal Occasions, Easter, Halloween, Mother’s Day, Valentine’s Day, Veterans Day, Love and Romance, Anniversary, Baby, Birthday, Friendship, Congratulations, Corporate Gifts, Get Well, Everyday, Sympathy, etc. Products include: fresh flowers, roses, green and blooming plants, fruit and gourmet baskets, stuffed animals, balloons, chocolates, nuts, cakes, special keepsake arrangements and sympathy arrangements.

California Cut Flower Commission: Design Room. Consumer Information Tips, Fresh Flower Design Tips. Some articles include pop-up photos of flowers. Flowers – The World of California Flowers – Search for a specific flower or choose by category.

Decorating: Floral Displays from Home & Garden Television. Floral Arrangements: Silk Flowers, Hand-Tying Floral Stems, Wall Flowers, Flowers as Gifts, Dried Flowers, Ikebana Arrangements, Floating Flowers, Artificial Flowers, Miniature Roses, and many others, Centerpieces, Pots / Containers, Tips / Techniques, Topiary, Wreaths, and Other.

Drying Flowers and Foliage for Arrangements by David Trinklein, Department of Horticulture, University of Missouri Extension. Steps for air drying flowers, Grasses suitable for drying, Pressed flowers, Burying flowers for drying, Microwave oven drying, and methods to preserve dried flowers.

EveryRose.com. The Rose Reference Database. Search for roses by name, colour and other characteristics. Or Browse database of over 7,150 roses and 2,500 photos. (Slow loading).

Fabulous Flowers from Flowers and Plants Association, UK. Site provides a wealth of fascinating information alongside a multitude of stunning flower pictures. Flower Facts: Flower Factfiles, Flowers by Month, Flowers by Colour, Botanical and Common Flower Names. Flower Trivia: UK’s Top Ten Cut Flowers, Feng Shui and Flowers, Scented Flowers & Foliages, Black Roses : Magic and Mysticism, and other interesting articles. Site also includes Flower Trends, Flowers for all occasions, Care and conditioning tips for cut flowers, Foliage & Fillers.

Flower Information including: Flower Tips – Direct from the Grower. Making Flowers Last Longer, Arranging Fresh Flowers, How to Care for Your Flowers, Flower Meanings, Flowers of the Month, State Flowers, Flower Anatomy – Flower parts and types of flower, Rose Colors and their Meanings, Floral Emblem of Ontario CA – Trillium, National Floral Emblem of USA, Secret Behind Growing Beautiful Roses, Art of Buying Fresh Flowers, Drying Roses and Making Potpourri, What Your Favorite Flower Says About You! Interesting Flower Facts, Holiday Information – Easter, Mother’s Day, Christmas, Valentine’s Day, Holiday Statistics, Funeral Information, Sympathy Information, and more.

Floral Library: Flower Care & Facts from Calyx & Corolla. Common Flower Name Search, Botanical Name Search, or Browse by Alphabetical Listing A-Z. Includes photos.

Flower Library: Flower & Plant Varieties from AboutFlowers.com. Fresh Cut Flowers, Green & Blooming House Plants, Meanings of Flowers, Flowers for Holidays and Special Occasions, Decorating and Entertaining trends and ideas. Excellent photos.

Northwest Coloring Book – Common Names Index, Scientific Names Index – Northwestern United States Wildflower Drawings by Karl Urban, Umatilla National Forest, Oregon. Excellent illustrations for coloring. Includes a coloring guide for each drawing.

USAFlorist.com USAFlorist.com. The Premier Site for Flowers and Gifts on the Internet. Established by partners with over 15 years combined experience in the floral industry. USAFlorist.com is a member of the Teleflora network and has delivery capabilities worldwide via affiliation with over 30,000 premier florists from around the world.

582.16 Trees

eNature Field Guides. Select a type of tree leaf. Detailed descriptions, excellent photographs, and other pertinent information on 906 North American trees. Photographs may be enlarged.

HortiPlex Plant Database contains plant images and data as well as links to information sources, images and vendors at other sites.

Tree Biology: News and trends in the biology of woody plants.

Tree Conservation Information Service. Currently 8000 tree species are threatened with extinction on a global level. The Tree Conservation Database is used to generate The World List of Threatened Trees. To find information on a tree, you need to know its Family, Genus, and Species name. Or, you can click on one of the 40 species listed in the timber trade, e.g. Cedrela odorata.

Trees in North America. Look up trees by Regions in Canada and USA by clicking on a map, or click on tree names from A-Y. Include photos of tree, leaf, fruit, and descriptions.

590 Animals

Electronic Zoo / NetVet – Animal Image Collection. Select topics in alphbetical order from African Wildlife Pictures to www.dogphoto.com.

Digital Morphology from University of Texas, Austin. Digital library provides information on high-resolution X-ray computed tomography of biological specimens. Browse through the site and see spectacular imagery and animations and details on the morphology of many representatives of the Earth’s biota. Popular Pages include: Alligator, Dinosaurs, Tapirs, Mata Mata turtle, Elephant Bird Egg, Bats! Primates, House Mouse, and Platypus.

eNature Field Guides. Complete guide to over 5,500 North American plants and animals, with detailed descriptions and photographs. Amphibians. Reptiles. Birds. Mammals. Shells. You can send any eNature species image as an eCard.

JungleWalk.com. Animal Videos, Sounds, and Images, Animal Posters, and Animal T-Shirts. Including under All Animals: Single-Celled Animals, Sponges, Coelentrates, Worms, Insects, Arachnids, Crustaceans, Molluscs, Echinoderms, Invertebrates & Vertebrates.

North American and Central American Animals from EnchantedLearning.com. Site includes hundreds of living creatures from the animal kingdom. Included for each is a clearly labeled black and white drawing for coloring, a brief description of its physical appearance, anatomy, diet, reproduction, and other relevant information for each animal, bird, fish, insect, worm, amphibian, or reptile.

Wildlife Fact Sheets. From Lone Pine Koala Sanctuary, Australia. Fact sheets on a variety of mammals, birds, reptiles and frogs. Each provided with common name, scientific name, photograph, introduction, food, breeding, habitat, and map.

590.73 Zoos

Zoos Worldwide – Zoos, Aquariums, Animal Sanctuaries and Wildlife Parks. Find a zoo in North America, South America, Europe, Africa, Middle East, Asia and Oceania. Includes Zoo News, Animal of the Month 2000-2004, Zoo Cams, and other links. The Zookeeper is seeking assistance to add more info to Zoo Reviews.

591.77 Marine animals (Aquatic animals), (Marine fauna), (Marine zoology), (Sea animals), (Water animals), (Marine mammals)

Marine Mammals of Canada. Site provides scientific and common names for each marine animal, related photographs, plus detailed information on the description, distribution, reproduction, ecology and behaviour of each species.

Ocean Animals with color photos and detailed information. Include Anemone, Angelfish, Barracuda, Conchs, Corals, Dolphins, Eels, Jellyfish, Lobsters, Manatees, Octopus, Pufferfish (Blowfish), Ray (Stingray), Sea Cucumber, Sea Horse, Sea Star (Starfish), Seadragons, Harbor Seals, Sharks, Squid, Swordfish, Sea Turtle, Urchin (Sea), Walrus, and Whales.

Ocean Animals Label Me! Printout. Ocean animals to label: conch, great white shark, jellyfish, horseshoe crab, lobster octopus, orca (killer whale), scallop, sea cucumber, seahorse, sea star (starfish), sea urchin, squid, and swordfish. Includes Answers.

595.7 Insects

Alien Empire. This special multimedia Web companion to the three-week NATURE miniseries takes you into the bizarre, fascinating world of insects, with amazing graphics, sound and animation, enhanced video, and activities for kids.

Amazing Insects. Insect Facts and Information: Insect Anatomy, Complete Metamorphosis, Incomplete Metamorphosis, Characteristics of Insects. See also Koday’s Kids Amazing Insects!

BugBios – insects.org. Insects on the Web. Site aims to help you really see insects for the miniature marvels they represent and to understand how intertwined our cultures have become with these alien creatures.

eNature Field Guides: Insects and Spiders. Detailed descriptions and photographs of 288 North American insects and spiders. Photographs may be enlarged. You can also send any eNature species image as an eCard.

Insect Company. Over 1,600 specimen photographs. Insect lists for Butterflies – Lepidoptera, Moths – Lepidoptera, Beetles – Coleoptera, Spiders, Scorpions, Preying Mantids, Stick & Leaf Insects, Cicadas & Lantern Flies. View Insect Rarities and Oddities – photographs of gynandromorphs and other insect defects, and Photo Gallery of groups of insects. Includes Starting a Collection: How to – Preparing your insect specimens.

Insect Printouts. Insect means “segmented” in Latin. There are about a million different types of insects.

Insecta Inspecta World. Insects are everywhere. They inhabit all the continents: Ants, Bees, Beetles, Butterflies, Crickets, Fleas, Mantids, Mosquitoes, Termites, True Bugs.

Insectclopedia. All about the study of insects (entomology). Species covered include: Antlions, Ants, Arachnids, Bees, Beetles, Butterflies, Cicadas, Cockroaches, Dragonflies, Fleas, Flies, Mayflies, Mites, Mosquitoes, Moths, Praying Mantids, Termites, Ticks, Wasps and Others which include Aphids, Centipeds, Grasshoppers, etc. Site includes superb illustrations and photos, with name of species, size, color, description, habitat, life cycle, type of damage or benefit, insect control, and interesting facts, and links to numerous resources.

Insects. Aerodynamics of Animals – Insects. Contents: How Insects Fly, Butterflies and Moths, Butterfly Migration, Ancient Insects, Insects Curriculum Index: Lesson Plan: Concepts – Principles of Aeronautics: Insects were the first flying creatures to inhabit the Earth.

Insects. Yahooligans! Directory.

Insects All Year. University of Kentucky Entomology for Kids.

Insects and Their Allies. All insects are invertebrates! Invertebrates are a group of animals that have no backbone. Contents also include: Most diverse insect orders in Australia, Spiders and their relatives, Insects with aquatic larvae, Insects without wings, The pseudo insects, Other insect orders, and Other non-insect invertebrates.

Most Wanted Bugs. Dennis Kunkel Microscopy – Science and Photography. See microscopic images of bugs. Bug Mugs and Bug Bodies: The 12 Most Wanted! Click on a picture to see a mug shot and rap sheet.

Thailand’s Amazing Insects. Photographed in the forests around Chiang Mai. Including audio clips, video clips and slide show. Over 3000 photographs of Thai insects, mostly in their natural habitat: ants, antlions, bees, beetles, bugs, butterflies, caterpillars, centipedes, cicadas, crickets, damselflies, dragonflies, fire flies, flies, grasshoppers, ladybirds, mantids, millipedes, moths, owlflies, pillbugs, scorpions, spiders, stick insects, wasps, snakes, frogs, lizards.

University of Florida Book of Insect Records. Names insect champions and documents their achievements. Each chapter deals with a different category of record, including Fastest Flier, Most Tolerant of Cold, Fastest Wing Beat, Longest Insect Migration, Resistant to Most Insecticides, Most Toxic Venom, Loudest, and more.

Wonderful World of Insects: The Most Successful Lifeform on the Planet. There are well over 1 million different known species of insects in the world, and some experts estimate that there might be as many as 10 million. All these species are divided up into about 32 orders, depending on whose taxonomic system you use, of which, the largest is the Beetles, or Coleoptera, with 125 different families and around 500,000 species they are an incredibly diverse group of animals. In fact, one in every four animal species on this planet is a beetle.

595.78 Butterflies, Moths

Berkeley’s Anise Swallowtail Caterpillars and Butterflies. Photographs, detailed descriptions and explanations of anise swallowtail caterpillars and butterflies from newborn to emergence of the butterfly. Includes close-up photos showing the difference between a male and a female butterfly.

Butterfly Rainforest from Florida Museum of Natural History. Includes Butterfly Q & A, Butterfly Discovery Game, Butterfly Facts.

TheButterflySite.com. Contents: Butterfly Gardening, Butterfly Biology, Butterfly Rearing, Butterfly Houses and Farms, Monarch Butterfly Page, Butterfly Pictures, Fun Butterfly Activities, Fun Butterfly Facts, Live Butterfly Releases for Weddings and Events, Butterfly Specimens, and more.

The Butterfly Website. Contents: Articles, Photo Gallery, Butterfly Gardening, Butterfly & Moths Checklists, Conservation,Butterfly Gardens & Exhibits Around the World, Free Clip Art of Butterflies & Moths, Butterflies & Moths FAQs, Inspiring Stories, and more.

Butterflies and Moths. Biology and ecology of butterflies and moths by Jeroen Voogd. Contents: Differences between butterflies and moths, temperature, hearing, feeding, communication, metamorphosis: egg stage, larval stage, chrysalis or pupal stage, moth index, butterfly index, unknown species, and links to other butterfly and moth sites.

Butterflies and Moths. Links from Tree of Life Project.

Butterflies of North America. Photo Thumbnails.

The Butterfly Farmer Educational Resources. Includes A Student’s Guide to Butterflies, Common Questions & Their Answers, Glossary of Terms, Butterfly Photo Gallery, Butterfly of the Month, Fast Facts at a Glance, A beautiful selection of Costa Rican butterflies, ovae, larvae and pupae screen savers, and more.

TheButterflySite.com. Explore 12 butterfly topics with pages packed full of butterfly information: Butterfly Biology, Butterfly Rearing, Butterfly Pictures plus numerous butterfly links.

Butterfly Website Free ClipArt. Lots of beautiful and colorful pictures of butterflies for free download. See also World Atlas of Butterflies and Moths for Butterflies and Mothes of the United States, by State; Butterflies, Birds, and Plants of England, Scotland, and Wales, by Postcode; Web Images of North American Moth Species, Photo Gallery of Butterflies, Moths and Caterpillars, FAQ, additional images and Links to other sites, and more.

Children’s Butterfly Site from National Biological Information Infrastructure (NBII). Contents include: Coloring Pages – View images of Butterfly & Moth in English, Francais, Deutsch, Espanol, Italiano, and Nederlands; Butterfly and Moth Life Cycle; Frequently Asked Questions About Butterflies and Moths with answers from Dr. Paul A. Opler, Professor, Department of Bioagricultural Sciences, Colorado State University; Butterfly Photograph Gallery – A gallery of butterfly photographs from Asia, Western Europe, North America, and Central America.

David’s Butterflies and Moths. Information includes Quick facts about Canadian butterflies, Stages, Anatomy, Mimicry, Larvae, color pictures of butterflies, as well as links to related Websites. For moths: in addition to information about the Stages, Anatomy, Mimicry, color photos of moths, you can learn to Blacklight and Sugar for moths. Excellent site for information and lots of beautiful photos which may be enlarged from thumbnails.

Moths and Butterflies of Europe and North Africa. Click on a Family to see color photos of various species. Excellent site. Includes an extensive list of links to other Lepidoptera sites around the world, e.g. Israel, Ireland, Japan (and Hawaii), Mexico, Arizona, Honduras, French Antilles, United Kingdom, Maltese Islands, and others.

Moths of North America.

Web Images of North American Moth Species. Links to over 4,100 photos of moth species by John Snyder, Department of Biology, Furman University, Greenville, SC.

597.8 Amphibians, Frogs, (Toads)

Amphibians and Frogs. Links to Information on the Internet from Tree of Life Project.

AmphibiaWeb. Complete a form to access species data from an amphibian database.

Frogs. Site features the Amazing and Adaptable Frog, Cold-Blooded Solutions to Warm-Blooded Problems. Read about Frog Myths across different cultures. Frog Tracker lets you listen to the calls of different North American frogs. View the Disappearing Act interactive exhibit to understand how camouflage is used. Frog Links take you to other great frog sites.

Frogs.org. Search the Library and Species Search for resources on Frogs. Learn about what is an amphibian in Amphibians: An Overview, Salamanders and Newts, Color and Markings of Amphibians, Defense Mechanisms of Amphibians, Eating Habits of Amphibians, Respiration and Water Balance in Amphibians, Size and Structure of Amphibians, Temperature Regulation in Amphibians, and much more.

597.9 Reptiles, (Turtles), (Lizards), (Alligators), (Crocodiles), (Snakes)

Alligators. Picture files from Photovault.

The American Alligator (Alligator mississipiensis). All about the American alligator, the official state reptile of Florida.

The Center for North American Herpetology. Links to North American Herpetology Web Sites, e.g. Links by Taxonomy: Amphisbaenians, Crocodilians, Frogs, Lizards, Salamanders, Snakes, Turtles, and General Herpetology. Online Collections include Museum of Vertebrate Zoology, California Academy of Sciences, Field Museum of Natural History, and Texas Memorial Museum, University of Texas. Also includes Current News, New Species, etc.

Reptiles of Tasmania. Contents: 3 species of snakes, and 17 species of lizards. Information for each species includes common name, scientific name, photograph, description, ecology, breeding, distribution, status, and threats to the species.

598 Birds

All About Birds from Cornell Lab of Ornithology. Includes: Online Bird Guide, How to ID Birds, Species Accounts, Video Gallery, Feeding Wild Birds, Gear Guide, Attracting Birds, Bird Conservation, Modern Extinctions, Understanding Bird Data, Studying Birds – What is Ornithology? Why Study Birds? See also Beautiful Birds: Masterpieces from the Hill Ornithology Collection, Cornell University Library.

Audubon’s Birds of America. Contents include: John James Audubon as Artist, Alphabetical List of Bird Image Plates, Birds Listed by Family, State Birds (United States), Extinct Birds, List of Figures (e.g. drawings of digestive tracts of various birds), The Life of John James Audubon. See also Bird Resources, State of the Birds USA, Bird Feeding Basics, Birding Basics, and more.

Bird Songs: Songs and calls of some New York State birds. A delightful site offering you World’s best singers, World’s otherwise most remarkable, Songs in slow motion, and Bird Songs in Musical Notation with options to Hear bird song, Hear song at half speed, Hear music, or Hear music at half tempo. Includes Links to other Birdsong and Birding Sites.

Bird Songs of the Yucatan Peninsula of Mexico. Select a species then click on spectrograms to hear songs and calls of tropical birds. See and hear also Birds Songs of the Atherton Tablelands of Queensland, Australia.

BirdCentral.net. Lots of beautiful color photos and information about 406 species of birds in the United States. Includes lesson plans for K-12 and a glossary.

Birds n Ways: The Library. Articles & FAQs, General Bird Topics: Bird Terms & Definitions, Selecting & Buying a Bird, Pet Bird Care, Parrotology, Endangered Conservation, Bird Stories, Poems & Humor, and more. Site includes guide to pet parrots & exotic birds, parrots classifieds, bird magazine, breeders, chats, birds supplies, shows, bird care information.

Birds of the World on Postage Stamps. One amazing site. Select a country from A-Z and view postage stamps featuring birds of that country. Click on flag or name of country to access additional information on that country as well as any available postal and philatelic Websites. Click on color photo of bird stamp and map shows where the same species of bird may be found in the world. Bird name given in both English and Latin (species and genus).

Harmony – The Birds of America by John James Audubon. Click on a bird, sit back, relax and enjoy the show with animation and music.

Life Histories of Familiar North American Birds by Arthur Cleveland Bent (1866-1954), one of America’s greatest ornithologists. Familiar Birds listed in alphabetical order by common names. See Contents for species listed in taxonomic order. Text only, original black and white illustrations not included in this e-book.

Patuxent–Tools for Learning About Birds. From Patuxent Wildlife Research Center. Contents include: Pictures of Common U.S. and Canadian Birds, Songs of Common U.S. and Canadian Birds (WAV files), Identification Tips for U.S. and Canadian Birds, Pictures and Songs of Central American Birds, Play the Patuxent Bird Quiz, and more.

Top 25 Birding Web Sites.

599 Mammals

About Mammals from Etc. Etc. by Charles & Ingrid Larsen. A concise overview of mammals. Chart lists number of species and number of families for world mammals, including the Primate: human.

All About Mammals from EnchantedLearning.com.

All About Mammals: Your Mammal Reference Center from About.com. Mammals 101 Topics: Introduction to mammals, Mammal adaptation, Mammal classification, Research topics, and Conservation.

The Hall of Mammals from University of California Museum of Paleontology (UCMP), Berkeley. Divided into 4 groups: Eutheria (placental mammals), Marsupials, or Metatheria (pouched mammals), Monotremes (egg-laying mammals), and Multituberculata (extinct mammals).

Mammal Species of the World (MSW) from Smithsonian Institution, National Museum of Natural History, Department of Systematic Biology. Site contains names of 4,629 currently recognized species of mammals, in a taxonomic hierarchy that includes Order, Family, Subfamily, and Genus. Search by Scientific Name or Search by Common Name.

Mammals – A-Z list from Canadian Museum of Nature.

Mammals – United States. Extensive links from Zeal.com. Categories: General Guides, Canine Family, Mammals A-Z, Marine Mammals, Primates, and Wildcats.

Mammals from Yahooligans! A-Z list plus Mammal Pictures, Mammal Sounds, Mammal Videos, and links to other mammal sites.

599.9 Anthropology, Human origins, (Hominids), (Origin of man), (Human paleontology), Physical anthropology, (Biological anthropoloy)

See also 301 Anthropology, (Cultural anthropology), (Social anthropology), (Archaeology), (Linguistics), (Ethnology), (Ethnography), (Indigenous peoples)

Anthropology Biography Web. Some 537 biographies of anthropologists listed alphabetically by last names with portraits where available. Site developed by anthropology students at Minnesota State University, Mankato.

Becoming Human. See and hear the journey through the story of human evolution. Extremely well done interactive documentary produced by paleo-anthropologisat Donald C. Johanson. High speed Internet connection required. Includes news and views, glossary and related links.

Evolution Resources from the American Association for the Advancement of Science. Site covers: Current Issues on evolution versus creationism, Educational and Scientific Resources, Perspectives, Court Cases, Historical Documents such as links to texts of Charles Darwin’s Theory of Evolution – The Origin of Species (1859) and the Descent of Man (1871), and essay from the book Epic of Evolution.

The Genographic Project. Human Migration, Population Genetics, Maps, DNA, from National Geographic. Includes Genetics Overview – Anatomy of Our Genes, Genetic Signposts (DNA Recombination, Y Chromozome, Mitochrondrial DNA – mtDNA), Populations Genetics (Mutation, Genetic Diversity, Natural Selection, Genetic Drift, Human Family Tree), Genetics Glossary, Atlas of the Human Journey.

The Smithsonian Institution Human Origins Program. In Search of What Makes Us Human. Learn about 5 million years of human evolution in the Hall of Human Ancestors. Review major issues and current topics in paleoanthropology. Links to related resources. Find out What is Anthropology?

540 Chemistry, Chemicals