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Pencil Balance
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In this activity, challenge learners to make a pencil stand on its tip using only two pieces of wire and two clothespins. Use this activity to demonstrate the center of gravity.

Balancing Act
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In this activity, learners will explore their center of gravity.

Vortex
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In this activity, learners create a tornado in a bottle to observe a spiraling, funnel-shaped vortex. A simple connector device allows water to drain from a 2-liter bottle into a second bottle.

Gravity and Muscles
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In this activity about center of gravity (page 23 of PDF), learners investigate how the body adjusts to the force of gravity to remain balanced.

Fork it Over
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This is an activity about center of gravity. Learners will balance a fork on a glass by finding its center of gravity.

Center of Gravity
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A simple, yet fun activity that lets learners find the center of balance of a ruler (or any long thin object). Developed by the Exploratorium and no assembly needed.