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Lesson Plan
Curated OER

Tic-Tac-Toe for Layers of the Earth

For Teachers 8th
Eighth graders identify the different layers of the earth. In this earth science instructional activity, 8th graders choose a project to do from a given list according to their learning style. They present their finished project in class.
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Lesson Plan
Curated OER

Energy for Free: Perpetual Motion Machines

For Teachers 9th - 12th
Students observe the "drinking bird" perpetual motion machine and critically examine the designs of other so-called perpetual motion machines. They use this experience to create their own definition of conservation of energy.

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