1
2
3
4
5
6
7
8
Across
- 1. A substance made of two or more elements bonded together
- 4. A gas in the air that living things need to breathe
- 5. To say what you think will happen based on evidence
- 6. The bending of light as it passes from one material to another
- 8. The amount of matter in an object
Down
- 2. Any water that falls from clouds such as rain, snow, or hail
- 3. A push or pull that can change how something moves
- 7. The remains of a plant or animal from long ago preserved in rock