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This is part 1 of the three-part "Crayon Rock Cycle" activity. In this activity, learners explore how sedimentary rocks form.

Glare from the sun and ripples from the wind can make it hard to see what's below the surface of a body of water.

Use a homemade potato launcher to explore air pressure. This activity includes simple instructions on how to build a homemade propulsion pipe using pipe, a wooden dowel and duct tape.

The goal of this activity is to design the fastest sailboat or one that carries the most treasure.