Across
- 2. a rocket burns this to fly
- 4. this sends signals through space and to Earth
- 7. Astronauts have to work _____ because space travel is dangerous
- 8. Americans _____ rockets during the space race.
- 11. an astronaut takes these into space
- 12. traveling outside Earth's atomosphere
Down
- 1. a gun shoots these
- 3. The rocket was ready to _____ into space.
- 4. these people do experiments
- 5. many countries were fighting in this and dropping bombs on each other
- 6. to go up
- 9. what will happen if fuel mixes too quickly
- 10. a person who goes into space