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In this activity, learners will estimate the sizes of balls to learn how to estimate the size of hail. Learners will compare their estimates to the estimates of their peers and the real measurements.

In this activity, learners make their own pinhole viewer in order to measure the size of the sun.

In this activity, learners will investigate how craters are made and the different factors that contribute to size left from the impact.

Learners use M&Ms® (or any other multi-color, equally-sized small candy or pieces) to create a pie graph that expresses the composition of air.