Apollo 13

2. – Releasing gas or air into space.
3. – The group of people working together on a spacecraft or mission.
6. – A machine that copies real conditions so astronauts and engineers can practice.
10. – A door or opening between sections of a spacecraft.
12. – A section of a spacecraft with a specific purpose (e.g., Command Module, Lunar Module).
13. tank – A container that stores oxygen for breathing and electricity production in space.
15. dioxide – A gas humans breathe out that must be removed from a spacecraft for safety.
16. – Used up completely.
18. – A very serious disaster.
19. engine – The engine used to slow or control a spacecraft when landing or changing direction.
20. – The process of a spacecraft returning into Earth’s atmosphere.

1. – A quick shaking movement.
4. cells – Devices that produce electricity by combining oxygen and hydrogen.
5. – A state where objects float because there is little or no gravity.
7. – A drop in electrical power below a safe level.
8. – The astronaut in Mission Control who communicates directly with the crew in space.
9. – Having lost too much water from the body.
11. – Supplies needed for survival, such as water, oxygen, and power.
14. – The path something follows through space.
17. light – A signal that alerts astronauts to a problem.