Across
- 5. the process of gas turning into liquid
- 7. the process of liquid turning into gas
- 9. the process where gases in the atmosphere trap heat, keeping Earth warm
- 10. an invisible force that surrounds Earth and helps protect it from solar radiation
- 11. a stream of charged particles released from the Sun
Down
- 1. the force of air pushing on Earth's surface and everything on it
- 2. the layer of gases surrounding Earth or another planet
- 3. energy that travels in waves, including light and heat from the Sun
- 4. how temperature changes from one location to another
- 5. the different elements or parts that make up something
- 6. a region in the atmosphere that blocks harmful ultraviolet radiation
- 8. how much mass is contained in a given volume