General Reference
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Dictionary.com
Look up the meaning of any word
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Thesaurus
Find synonyms and antonyms
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Kiddle
Safe search engine for kids
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Britannica Kids
Encyclopedia for students
Animal Research
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San Diego Zoo
Learn about zoo animals
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Smithsonian Zoo
Full list of animals
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World Wildlife Fund
Endangered species around the world
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Animalia.Bio
Animal database & facts
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Animal Fact Guide
Fun facts about animals
Science
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NASA Kids' Club
Space science for kids
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Science Kids
Experiments and science facts
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DK Find Out!
Interactive visual encyclopedia