Across
- 2. a matter that can very in composition
- 4. the atomic symbol for aluminum
- 6. slat water is a __________ mixture
- 10. what the size of an atom is put in comparason to
- 11. an _______ consists of just one type of atom
- 12. protons and ________ make up the nuculeus
- 15. how many classifications of matter there are
- 16. all atoms in a group are the ____ type
- 17. a substance that consists od one type of atom
- 19. a physical way you can seperate a mixture
Down
- 1. elements and compounds are the two types
- 3. the atomic symbol for it is b
- 4. they make up most matter on earth
- 5. what is the element He
- 7. the substance present in the largest amount
- 8. a black solid
- 9. anything that has mass and takes up space
- 13. the atomic symbol is O
- 14. matter is from the latin word meaning ____
- 18. everything you see is ______