Across
- 3. when the shape size or phase of a substance changes
- 4. pure substance made of only one kind of atom
- 6. the smallest amount of a substance you can have
- 8. a chart where elements are arranged in order of atomic number
- 12. two or more elements chemically combined
- 14. particle with a neutral charge found in the nucleus of an atom
- 15. anything that has mass and takes up space
- 16. two or more substances combined but easily separated
Down
- 1. states that matter cannot be created or destroyed
- 2. a mixture where you are able to see the individual parts
- 5. when a completely new substance is formed
- 7. a chemical reaction where iron combines with oxygen in moist environments
- 9. negatively charged particles found outside the nucleus
- 10. the smallest amount of matter
- 11. a mixture that looks the same throughout
- 13. positively charged particle in the nucleus of an atom