Worksheets: Learn why we get just the right amount of sunlight to sustain life while our "sister" planet Venus is mired in a deep freeze. And broaden your students' horizons to the other eight planets in our solar system discover which planet has a bizarre orbit, and which one spins across the universe like a bowling ball.

As a companion piece to the Discovery Channel video, you'll find that Discovery Wraps' cross-curricular experiments and at-home activities make learning a pure pleasure.

Video: The heavens have inspired awe in humans ever since we turned our faces skyward. This three-segment video explains some of the basics of our knowledge of the universe. The Solar System — Your journey begins at the Sun and takes you to each of the planets in our solar system. The Moon — See how our view of the Moon changes from day to day. The Stars — Learn all about these twinkling objects, including our own star, the Sun.

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