Across
- 1. any substance that has mass and volume
- 5. smallest unit of a chemical element
- 6. cools down the body
- 9. tiny piece of matter
- 11. liquid that is essential for life
- 14. state of matter that flows and takes the shape of its container
- 16. learning about the natural world
- 17. defined by how its particles are arranged and behave due to temperature and pressure
- 19. responsible for the chemical digestion of food
Down
- 2. change in the size of an object when heat is being added
- 3. state of matter that has neither a fixed shape nor a fixed volume
- 4. amount of space that objects takes up
- 7. ability to do work or cause change
- 8. any substance
- 9. theory
- 10. a state of matter with a definite shape and volume
- 12. any pure form of matter
- 13. the amount of matter
- 15. carries oxygen, waste products and carbon dioxide in the body
- 18. hormone that helps your kidneys retain water