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In this activity, learners build models of comets, using edible materials, to learn about comets' structure.

In this outdoor activity, learners use only their senses to to find the extremes of several environmental variables or physical factors: wind, temperature, light, slope and moisture.

Use this hands-on activity to demonstrate infrared and thermal radiation.

In this four-part activity, learners explore how the body works and the chemistry that happens inside living things.