Science
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- Fact Monster Homework Center For Science
- Find simple answers to your science homework questions. Covers chemistry, physics, life sciences, geology, and astronomy.
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- Howard Hughes Medical Institute Homework Help
- Ask a homework question, get an answer from a scientist. Covers human biology, medicine, biochemistry, and genetics.
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- Kids' Science Challenge
- Get help for your science project, submit your idea and a scientist will help you create a project. Has fun science activities.
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- Lemelson Center's Invention at Play
- Play while inventing new things with imaginative online games. Has video and inventor biographies.
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- Oceanography: Studies of the Ocean
- Ocean lifeforms, its tides and endangered marine habitats with homework help, video, games and quizzes.
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- Old Farmer's Almanac For Kids
- Children’s version of the famous almanac with facts about weather, star gazing, moon phases and more.
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- Ology
- American Museum of Natural History’s Ology is a playground for children interested in science with games, crafts and experiments on dinosaurs, marine biology, genetics and astronomy.
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- Scholastic's StudyJams
- Interactive information, vocabulary and quizzes on numerous subtopics in physics, anatomy, botany, physics, astronomy, ecosystems and more for 3rd to 5th grade.
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- Tox Town
- Covers toxic chemicals and health risks in various environmental settings within cities, farms, ports and on the US/Mexico border.
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- Wild Music
- Interactive exploration of the science of acoustics and the sounds made by insects, birds and mammals.
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- A Dictionary of Units
- A summary of most of the units of measurement to be found in use around the world today (and a few of historical interest), together with the appropriate conversion factors needed to change them into a standard unit.
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- CyberSleuth: Units of Measurements Worksheets
- Twenty-three printable worksheets for elementary school-aged children. Focuses primarily on conversion of units of length.
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- Funbrain.com
- Measurement game - Game which has several levels of difficulty for both English and metric rulers.