Across
- 2. Beth Johnson studies people's...
- 5. It turns on the lights
- 8. A planet made of hydrogen
- 10. during the day it gives us sunlight
- 11. Humans are of...
- 12. We are made of them
Down
- 1. It keeps us hydrated
- 3. A planet that is a bit like Earth
- 4. It gets rid of colds
- 6. They give us oxygen
- 7. at night it gives off a bit of light
- 9. It runs through our body