Across
- 2. Rise and fall of the earth's ocean level based on where the moon is
- 4. Space rocks that burn when they enter the earth's atmosphere
- 6. Probes that go out of earth's orbit to collect data on a planet and send it back to earth.
- 9. The outer layer of the sun
- 10. Made up of planets,rocks and the sun
Down
- 1. What scientist use to measure the distance in space
- 3. Hunks of rocks in space that are big
- 5. The galaxy that we live in
- 6. The star that is in the center of the solar system
- 7. balls of ice that melt when close to the sun
- 8. Happens when to objects pass between each other.