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In this lesson that includes hands-on activities and demonstrations, learners discover that it is the tilt of the Earth's axis (not its proximity to the sun) that causes the seasons.

A group of learners models the Sun shining on the Earth. By rotating the Earth, they demonstrate how the Sun only shines on a portion of the Earth at a time.

This is a classic exercise for visualizing the scale of the Solar System.

This kinesthetic science demonstration introduces learners to four states of matter: solid, liquid, gas, and plasma.