Across
- 4. a rocky sphere that travels around a planet
- 7. the energy that is stored in an object or system
- 8. a set of interacting parts forming a complex whole
- 9. the relative size of things
- 10. the energy that an object has because it is moving
- 11. a moon phase that looks like more than a half circle from Earth
Down
- 1. when the Moon is completely dark
- 2. to change from one type to another
- 3. to move from one object to another or one place to another
- 5. an object, diagram, or computer program that helps us understand something by making it simpler or easier to see
- 6. the border between light and dark on the Moon