Unit 8.4 Crossword

2. The motion pathway of a solar system object through space in a curved shape around another object.
3. The force that attracts objects to the center of Earth or to the center of any other physical object with mass such as the Sun.
8. Small piece of rock in the solar system.
9. A very spread out collection of cloud, gas, and dust in outer space.
11. An attractive force between two objects. (2 words, no space)
15. A meteor that reaches Earth’s surface.
16. Rocky bodies orbiting the sun, mostly between Mars and Jupiter.

1. Friction forces that air particles apply against a moving object. (2 words, no space)
2. The motion pathway determined by the forces of gravity of objects in space. (2 words, no space)
4. A meteoroid that enters Earth’s atmosphere.
5. A push or a pull on an object.
6. A property of matter that causes objects to continue in a state of motion or rest unless changed by a force.
7. A system of solar systems, stars, gas, dust, and other matter.
10. The size and distance of one object relative to another.
12. The lack of any air particles in a volume.
13. Small icy object orbiting the sun that may have a long “tail” or halo when closer to the Sun.
14. The forces caused by one surface or object rubbing against another as they move past each other.