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100
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200
Religion
300
Social
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400
Language
500
Natural Sciences
600
Useful Science
700
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800
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900
Geography & History
920
Biography
E/FIC
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398
Folklore
A to Z
Site Index

500

Natural Sciences

599

 
500 Science
500 General Science
  506 Natural History Museums
507 Science Projects & Experiments
510 Math
  510 General Math
  511 Set Theory - classification
  512 Algebra
  513 Arithmetic - addition, subtraction, multiplication, division
  516 Geometry - shapes, angles
  518 Graphing
  519 Probability
520 Astronomy
520 General Astronomy
522 Telescopes
  523 Celestial Bodies
  523.1 Nebulae
  523.2 Solar System
  523.3 Moon
  523.4 Planets
  523.5 Meteors
  523.6 Comets
  523.7 Sun
  523.8 Stars
525 Earth - seasons
529 Time
530 Physics
530 General Physics
  530.4 Matter
  530.8 Measurement
531 Forces & Energy (balance, gravity, mass, motion, weight)
  532 Liquids
533 Air
534 Sound
535 Light - color, rainbows
  536 Heat
537 Electricity
538 Magnetism - auroras
539 Atoms & Molecules
540 Chemistry
550 Earth Sciences
551 Geology, Hydrology, Weather
    551 Geology
  551.2 Earthquakes & Volcanoes
  551.3 Icebergs & Glaciers
  551.41 Caves
    551.43 Mountains
    551.44 Canyons & Valleys
  551.48 Water & Water Cycle
  551.5 Weather
    551.6 Weather Forecasting
552 Rocks & Minerals
  553 Economic Geology - diamonds, gold, oil
560 Paleontology
 560 Fossils
    567 Fossil Fish, Reptiles & Amphibians
      567.9 Dinosaurs
    568 Fossil Birds
    569 Fossil Mammals
570 Life Sciences
570 General Life Sciences
573 Prehistoric Man
  574 Biology
    574.5 Ecology - food chains
  574.8 Cell Biology
  575 Evolution & Genetics
    575 General Evolution
    575.1 Genetics
576 Microbiology
577 Biomes & Habitats
    577 General Biomes & Habitats
    577.3 Forests & Woodlands - boreal, taiga
  577.34 Rainforests
  577.4 Grasslands, Meadows & Prairies
    577.5 Urban Habitats
    577.54 Deserts
  577.58 Polar Regions - tundra
  577.68 Freshwater Biomes - lakes, marshes, peat bogs, ponds, rivers, swamps, wetlands
    577.7 Marine Biomes - coral reefs, islands, kelp forests, oceans, tide pools, shorelines
  578 Microscopy
580 Botany
  581 General Botany
582 Seed Bearing Plants
    582.13 Wildfowers
  582.16 Trees
583 Flowering Plants - dicotyledons (cactus, cotton, ivy, peas, potatoes, roses)
  584 Flowering Plants - monocotyledons (grasses, lilies, orchids, palms)
586 Non-flowering Plants
  589 Algae, Bacteria, Fungi, Lichens
590 Zoology
  590.74 Collections & Exhibits - aquariums & zoos
591 General Zoology
591.3 Animal Growth & Development - eggs, life cycle, metamorphosis
    591.47 Animal Defenses
    591.5 Animal Adaptations
      591.5 General Animal Adaptations
  591.52 Endangered Species & Diversity
  591.54 Hibernation
      591.56 Migration
  591.57 Camouflage
      591.59 Communication
    591.6 Dangerous Animals
  592 Earthworms, Leeches, Sea worms
593 Invertebrates
    593.4 Sponges
    593.6 Corals, Jellyfishes, Sea Anemones
    593.9 Sand Dollars, Sea Stars, Sea Urchins
594 Mollusks - clams, octopuses, oysters, slugs, snails, squid
595 Arthropods
595.3 Crustaceans - barnacles, crabs, lobsters, shrimp
595.4 Arachnids - scorpions, spiders, ticks
    595.6 Centipedes, Millipedes
    595.7 Insects
      595.7 General Insects
      595.7 Cockroaches, Dragonflies, Grasshoppers, Lice, Termites
  595.76 Beetles - ladybugs
      595.77 Flies, Gnats, Mosquitoes, Fleas
  595.78 Butterflies
  595.79 Ants, Bees, Wasps
  596 Vertebrates
597 Cold-blooded Vertebrates
597 Fishes
    597.3 Sharks
597.8 Amphibians - frogs, toads, salamanders
    597.9 Reptiles
  597.92 Turtles
  597.95 Lizards
  597.96 Snakes
  597.98 Alligators & Crocodiles
598 Birds
598 General Birds
    598.3 Shore Birds - cranes, flamingos, gulls
    598.4 Water Birds - ducks, pelicans, penguins
598.5 Flightless Birds - ostriches
    598.6 Doves, Pheasants, Pigeons, Quail, Turkeys
    598.7 Cuckoos, Parrots, Roadrunners, Woodpeckers
    598.8 Perching Birds & Songbirds - cardinals, hummingbirds, jays, mockingbirds
598.9 Birds of Prey - eagles, falcons, hawks, owls
599 Mammals
    599.1 Monotremes - platypuses
599.2 Marsupials - kangaroos, koalas, opossums, sugar gliders
599.32 Rodents - beavers, gophers, mice, prairie dogs, porcupines, rabbits, squirrels
    599.33 Insectivores - anteaters, armadillos, hedgehogs, moles, shrews
599.4 Bats
599.5 Sea Mammals - whales, dolphins & porpoises, dugongs, manatees
    599.6 Elephants
    599.72 Odd-toed Mammals - wild horses, rhinoceroses, zebras
    599.73 Even-toed Mammals - antelope, bison, buffalo, camels, deer, gazelles, giraffes, wild goats, hippopotamuses, llama, moose, wild pigs, wild sheep, warthogs
599.75 Wild Cats - leopards, lions, tigers
    599.76 Small Carnivores - badgers, ferrets, meerkats, otters, raccoons, skunks, weasels
599.77 Wild Dogs - coyotes, foxes, hyenas, wolves
    599.78 Large Carnivores - bears, giant pandas
    599.79 Pinnipeds - sea lions, seals, walruses
599.8 Primates - chimpanzees, gorillas, monkeys
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