Across
- 3. an amount of air that moves as a unit
- 6. when something becomes different over time
- 7. the process by which a gas changes into a liquid
- 9. something we observe to be similar over and over again
- 13. a measure of how hot or cold something is
- 15. the process by which a liquid changes into a gas
- 16. the force on a surface caused by the weight of the atmosphere pressing down on Earth
- 18. the scientific study of weather
Down
- 1. a measure of how much water vapor is in the air
- 2. one thing that contributes to causing an event
- 4. the movement of air in a particular direction
- 5. conditions such as rain, clouds, and wind at a particular time and place
- 6. liquid water droplets suspended in the air
- 8. the layer of the atmosphere closest to Earth, where weather happens
- 10. the mixture of gases surrounding a planet
- 11. scientific methods used to reconstruct and understand a mystery
- 12. rain, snow, sleet, or hail that falls from clouds onto the ground
- 14. when something stays mostly the same over time
- 17. the ability to make things move or change