Across
- 2. what process does water go through to be purified?
- 4. what body system is effected in space?
- 6. The state of not having gravity.
- 8. what do astronauts use to exercise on in space?
- 11. what process do you go through when you make oxygen from water?
- 12. what machine is used to make oxygen in space?
- 13. what is a risk of traveling in space?
Down
- 1. bombards spacecraft constantly in space.
- 3. the force that keeps us planted to the ground.
- 5. what are satellites in?
- 7. debris left over from previous space missions.
- 9. used to transport people through space.
- 10. When blood moves freely after loss of gravity.
- 14. A gas that builds up in a space crafts atmosphere.