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In this activity, learners work in pairs to measure each other's ankles with lengths of string.

In this activity, learners make an astrolabe, a device used for measuring altitude, including the height of objects in the sky.

The demonstration/experiment provides quick proof that air has mass.

In this activity, learners will construct a measuring device (snake "string") to improve their observation skills.

In this quick activity, learners drink Avogadro's number worth of molecules - 6.02x10^23 molecules!

In this activity, learners will make their own prism and use a glass of water to separate sunlight into different colors.