1. Moon
Origin of the Moon

2. Objectives
TLW describe the current theory of the origin of Earth’s moon.
TLW explain why objects fall to Earth.
TLW demonstrate inertia with coins.

3. Terms
Satellite
Luna

4. The origin of the Moon
If you could which moon would you visit? With volcanoes, craters, & possible underground oceans, the moons in our solar system would be interesting places to visit.

5. The origin of the Moon
Except for Mercury & Venus all of the planets have natural satellites, called moons.
Satellite: A natural or artificial body that revolves around a planet.

6. The origin of the Moon Where did the moon come from?
What evidence is there to support this theory?
Pair up with a partner and use page 661 to answer these questions. You have 5 minutes.

7. Origin of the Moon 3 Popular Explanations:
It was a separate body captured by Earth’s gravity.

8. Origin of the Moon 3 Popular Explanations:
2. Formed at the same time & from the same materials as the Earth.

9. Origin of the Moon 3 Popular Explanations:
3. Earth was spinning & a large, Mars-sized object collided with Earth while the Earth was still forming. Earth’s mantle blasted into orbit to form the moon.

10. Origin of the Moon
Current theory: The moon formed from a piece of Earth’s mantle, which broke off during a collision between Earth & a large object.

11. Activities TLW explain why objects fall to Earth.
TLW demonstrate inertia with coins.