Across
- 5. Gas in Earth’s atmosphere that absorbs most of the damaging high-energy ultraviolet radiation from the Sun.
- 6. garment designed to allow an astronaut to survive in space.
- 8. Magnetic lines of force from Earth’s polar north and south, acting like a giant magnet.
- 9. the region surrounding the earth or another astronomical body in which its magnetic field is the predominant effective magnetic field.
- 10. closeness.
- 11. someone who is trained to travel to space.
- 12. can cause tans, sunburns, and skin cancers.
Down
- 1. a microscopic particle in space.
- 2. The layer of gas surrounding a planet that is held in place by gravity.
- 3. volume of space mostly empty of matter.
- 4. something supplied to satisfy a need.
- 7. physical activity engaged in by an astronaut in space outside a spacecraft.
- 9. condition in which people or objects appear to be weightless.