Across
- 3. something that revolves around the earth
- 4. there are 8 of them in our solar system
- 7. the planet we are living
- 9. the rocket was a good ...
Down
- 1. its something you can fly to moon with
- 2. it is similar to the word know
- 5. in chemistry we do a lot of these
- 6. the sun is a really big one of them
- 8. we are living so we are also ...