Across
- 2. A fluffy cotton-like cloud seen on a sunny day
- 3. The tool we use to measure temperature
- 5. The number of variables you can change in a scientific experiment
- 8. The process of water vapor cooling to liquid; it forms clouds
- 11. The flow of electricity as electrons move from one atom to another
- 12. What an electrical circuit has to be to work
- 13. The tool used to measure air pressure
- 14. An educated guess, or what we think will happen in an experiment
- 15. The condition of the atmosphere at a certain time or place
Down
- 1. The sound made when lightning makes the air expand
- 2. A dark cloud that means a thunderstorm or hailstorm is coming
- 4. The very calm center of a hurricane
- 6. The tiny particle that moves from atom to atom to form electricity
- 7. The tool used to measure wind speed
- 9. The imaginary line which circles the middle of the Earth
- 10. The layer of the atmosphere where weather happens
- 11. The path an electrical current follows