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Why Doesn't the Moon Fall Down?


The Moon, Earth's natural satellite, seems to hover in the sky, unaffected by gravity. However, the reason the Moon stays in orbit is precisely because of gravity -- a universal force that attracts objects. With the right combination of speed and gravity, satellites can fall around, instead of into, the body that they orbit. In this animated video segment adapted from NASA, learn about how the Moon stays in orbit around Earth.

The web page is located within Teachers'Domain, an online educational resource produced by WGBH Boston. It has two related components ? collections and courses ? that help teachers enhance their students' learning experiences and advance their own teaching skills. The Teachers' Domain collections include classroom-ready multimedia resources for use in lessons or independent study. Registration is free for everyone (teachers, students, parents).

http://www.teachersdomain.org/6-8/sci/ess/eiu/moonorbit/index.html

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