Earth's Gravitational Force

What affect the height of the meteor will have on the craters that form?
​-It might go deeper.
-It might create more rays.
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1. Which of the following best describes Earth’s shape?
   A. disk
   B. circle
   C. sphere
   D. plane
2. Earth’s gravity pulls an object toward its ____________________.
3. Which model do you find most useful to explain gravity and its effects? Why?
   - Tennis ball and rubber band?
   - Styrofoam ball and toothpicks?
   - Circle on paper with arrows?
4. Why are models helpful at explaining complex scientific concepts like gravity?
5. Do you think the moon is affected by Earth’s gravity? If so, why doesn’t it fall “down” toward the Earth?
6. Why doesn’t a plane or bird fall from the sky?
7. Does gravity ever stop working? Do any forces ever cancel out gravity or reverse it? Explain.
8. Why is this lesson on gravity a good time to teach about craters?

1. C
2. Core
3. Tennis ball and rubber band
4. Because it shows you an easier way to understand the thing you're learning about.
5. The moon is affected by Earth's gravity, it dosen't fall down because it is a far enough distance to fall and the moon has it's own gravity to keep it from falling.
6. They're light and they're still in the atmosphere. They also have enough power to fly without falling.
7. Gravity never stops working and no forces can cancel it out that we know of. Gravity is like breathing, we can't make it stop, it just happens. No forces can cancel out gravity so far because the force of gravity starts in the core. No force can get that far into the Earth and stop it.
8. Because craters are caused by comets which use gravity to hit the planet.