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Interactive
National Center for Ecological Analysis and Synthesis, University of California Santa Barbara

Nceas: Scientific Method

For Students 3rd - 5th
This concise site from NCEAS contains an explanation of the scientific method along with a basic example of the scientific method in action.
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Lesson Plan
Science and Mathematics Initiative for Learning Enhancement (SMILE)

Smile: Colliding Spheres

For Teachers 9th - 10th
This lab activity from the Illinois Institute of Technology lets students investigate the impact of collisions upon the velocity and momentum of the colliding objects. Requires understanding of vectors.
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Lesson Plan
Science and Mathematics Initiative for Learning Enhancement (SMILE)

Smile: Momentum Conserved

For Teachers 9th - 10th
This site by the Illinois Institute of Technology gives a Lab activity in which young scholars use a variety of toys to discover Newton's second law and momentum conservation. Newton's cradle, skate boards, and a toy motorcycle are...