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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.

This lesson plan provides learners with two activities to explore the connections between events in their lives and the seasons of the year.

Learners construct one or more of the following kinds of sundials: a shadow plot, a horizontal sundial, and a diptych sundial.

In this activity, learners will measure the length of their shadow from the Sun and compare it three to four months later.