Across
- 2. this is caused when that part of the earth is facing the sun
- 5. the time it takes the earth to orbit the sun
- 7. the process by which a star releases energy
Down
- 1. 8 of these orbit the sun
- 3. balls of gas
- 4. how a planet goes around the sun
- 6. the largest object in our solar system
- 8. the earth rotates on this