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Many planets have moons. Earth's moon has no atmosphere to protect it, so it is covered with craters. It has daytime temperatures of 240°F (115° C) and nighttime temperatures of -260°F (-168° C). It takes 27 days to revolve around the earth and 27 days to rotate. Because of this, the same side of the moon is always facing the earth. The moon's gravity pulls on the earth as it revolves around it, causing the rise and fall of the ocean's tides. The first man walked on the moon in July 1969.

See Solar System poster, chart, worksheets, matching and read and react quizzes in Science Activities and Illustrated Science Mini-Posters.

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Next Generation Science Standards Connection

ESS1. A  The universe  and its stars
ESS1. B   Earth and the solar system
Patterns of movement of the sun, moon, and stars as seen from Earth can be bserved, described, and predicted has more than 2,000 illustrated animals. Read about them, color them, label them, learn to draw them.