Across
- 3. - The force that keeps us on the ground.
- 4. - A tool used to see tiny things.
- 6. - The process of water changing into vapor.
- 8. - A star that provides heat and light to Earth.
- 9. - The gas we breathe to stay alive.
Down
- 1. - A type of energy that powers our homes.
- 2. - The planet known as the Red Planet.
- 4. - An object that attracts iron.
- 5. - Earth is one of these in the solar system.
- 7. - The smallest unit of matter.