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In this activity, learners experiment and observe how the color of materials that cover the Earth affects the amounts of sunlight our planet absorbs.

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.

Many people think the different stages in the life of a star are actually different types of stars, rather than just stages in the life of a single star.

Learners will explore the concept of angular distance, and investigate why the moon appears to be the same size as the sun during a solar eclipse, despite the sun being much larger.