Across
- 5. A substance that can break down metals, change substances different colors or making fizzing noises.
- 8. When someone wants to test a theory or guess by using various scientific supplies.
- 9. A coin that is small and has a copper color to it.
- 10. When a liquid changes colors when it identifies an acid.
Down
- 1. When oxygen starts to change the surface of an object.
- 2. A person who studied mixing substances to see what would happen.
- 3. Particles are moving fast and want to spread out.
- 4. Has a definite shape.
- 6. When substances are mixed together and you can see or hear what happened.
- 7. Particles that move a little.