Across
- 3. the layers of gases that surround a planet
- 5. the speed and direction of moving objects
- 6. the energy an object has due to its motion
- 7. a pull or push that is applied to an object
- 8. a large, circular pit in the surface of a planet or other body in space usually formed when two bodies in space collide
- 9. the amount of matter in an object
- 10. a force that exists between any two objects that have mass
- 11. a large circular mass that revolves around a star
Down
- 1. a body of ice and dust that travels in a long narrow orbit around the sun
- 2. a small object made of rock or metal that orbits the sun
- 3. a change in the velocity of a body
- 4. a streak of light in the sky that forms when a piece of rock from space burns up in Earth's atmosphere