Across
- 2. a tiny building block for all matter
- 5. anything that takes up space and has weight
- 6. a tiny group of atoms that are stuck together
- 9. this is made up of many many molecules that are exactly the same
- 10. a characteristic that describes a material.
- 11. when you combine two or more substances together
Down
- 1. to pull or drag something towards something else
- 3. something used to represent an object, idea, or process
- 4. a guess or conclusion you can make based on what you already know or observations you made
- 7. factual information that helps to prove something is true
- 8. to mix an solid into a liquid until it disappears