Across
- 3. can cause a crater when landing on earth
- 4. used to measure units in space
- 5. travel around the sun in an elliptical path
- 7. what is there non of on the moon
- 9. planet lighter than water
Down
- 1. A lump of rock or metal that is pulled into the earth's atmosphere
- 2. Any object in space is a _______ object
- 4. is the study of space and beyond
- 6. is a moon, planet or machine that orbits a star or planet called
- 8. Uses satellites to determine where an object on earth is.