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In this activity, learners experiment with shadows and light sources to understand the relationship between the angle illumination and the shadow's length.

This activity (located on page 3 of the PDF under GPS: Light and Color Activity) is a full inquiry investigation into mixing colors with light.

In this activity, learners will measure the length of a shadow and use the distance from the equator to calculate the circumference of the earth.

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