Across
- 4. the amount of matter in an object
- 6. get bigger, increase in size
- 8. changing from a liquid to a gas
- 11. get smaller, shrink
- 13. model a model used to describe the properties of solids, liquids, and gases
- 15. model an idea used to explain and predict occurrences that we can't directly interact with
- 16. a factor that limits or restricts
- 19. an observed event
- 20. point the temperature when something changes from a solid to a liquid
Down
- 1. point the temperature when something changes from a liquid to a gas
- 2. particles that make up all physical substances; they have mass and take up space
- 3. how heavy something is for its size; mass divided by volume
- 5. a very small amount of matter
- 7. a characteristic or attribute of a substance
- 9. very close to the true, exact value
- 10. the space taken up by something
- 12. squash into a smaller space
- 14. a machine that spins fluid samples very quickly so that they separate into parts of different densities
- 17. relating to heat
- 18. changing from a gas to a liquid