Across
- 2. first dog to orbit Earth
- 4. layer of Earth we stand on
- 6. common intrusive igneous rock
- 8. we didn't study this, but it would have been cool
- 11. north star
- 12. 3rd layer of inner Earth
- 14. where we hope to travel to someday
- 16. a way to measure work done
- 17. gas giant
- 18. 2 or more inclined planes together
- 20. What will happen in an investigation
- 23. a measurement of force
- 24. a fixed wheel with rope
Down
- 1. an edible rock
- 3. pulls you toward the center of a larger object
- 5. largest explosion known in the universe
- 7. black rock that cooled quickly
- 9. large grouping of stars and stuff
- 10. what an object is made of
- 13. your teacher's first name
- 15. also known as fire rock
- 19. bits of rock travelling
- 21. a word describing your teacher
- 22. where stars are born