Across
- 5. a piece of rock or dust orbiting the sun
- 8. the action of one surface, material, or object rubbing against another
- 9. _____ cloud is a theorized shell of objects made of lots of ice at the farthest points of our solar system
- 10. ______ belt divides the inner planets from the outer planets
- 11. stellar ________ is what astronomers use to mathematically figure out a stars distance from earth
- 12. the amount of light or radiation reflected by a surface, typically that of a planet or moon.
Down
- 1. ______ belt is located just beyond Neptune's orbit
- 2. the earth's shadow
- 3. a _____ star is a system of 2 stars that orbit one another
- 4. when a meteoroid moves into the earth's atmosphere and starts to glow
- 5. when a meteor hits the ground it is called a ___
- 6. a force of attraction existing between any 2 masses
- 7. a natural or artificial body orbiting a planet or star