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provides web-based science learning activities for teachers. Activities include simulations, questions, and students' common misconceptions (with practical ideas for addressing them). Learn about Newton's three laws of motion. Explore the universe -- how we know what we know about it, the sun as a star, the life and death of stars, beyond the solar system, and the evolution of the universe. (Multiple Agencies)
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Upon embarking on a study of the universe, one quickly finds that there is a lot more than just dim stars in outer space. Near to our own Earth are other planets, some big and some small. Much farther away are brilliant stars, hundreds of billions of them clustered together in the form of galaxies. |
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Newton's cradle in motion |
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