Across
- 3. A liquid metal once used in thermometers and barometers.
- 5. The force applied over an area.
- 7. A type of barometer with no liquid inside.
- 8. A gas that shields us from the Sun’s UV rays.
- 9. Height above sea level.
- 10. The layer where meteors burn up.
Down
- 1. The layer where all weather happens.
- 2. The day-to-day changes in the air around us.
- 4. How tightly packed a substance’s particles are.
- 6. An instrument used to measure air pressure.
- 7. The blanket of gases around Earth.