Visit the South Carolina Department of Education for Science standards.
Take a quick look at all Science series on Knowitall.org
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As you take a deep sniff, the odor particles in the air flow back to the top of your nose. Learn more about the sense of smell in the simulation.
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The Sun is a natural source of visible light waves. Our eyes see the reflection of the sunlight off the objects around us. Check out the simulation to learn more about scattering light.
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In the activity, choose a color to find out why objects appear in a particular color.
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The Earth is surrounded by a thin envelope of gases called the atmosphere. More than 500 active volcanoes erupt around the world affecting the Earth's atmosphere and global climate.
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These brain teasers can help you develop your creative thinking, an important skill for inventors. Try out the brain teaser game.
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Use the arrows to scroll the timeline to discover inventions. Click on an event for more details.
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Play a science word jumble game. Scramble the word jumbles by dragging each letter into the appropriate box.
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Watch the simulation to learn the parts of an airplane.
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Thrust is the force that propels or drives an airplane forward. This force can be produced by an engine spinning a propeller or a jet engine expelling hot gas from the back. Watch the simulation.