Across
- 5. the most common element in the universe
- 8. all physical matter exists as particles
- 9. a substance that consists of atoms with the same atomic number
- 11. close particle spacing
- 12. a physical combination of two or more substances
- 13. acting the measure of gravity acting on the matter in an object
- 15. the space enclosed or occupied by an object
- 17. anything that occupies space and has mass
- 18. the building block of all matter
- 19. a material made of only one element
Down
- 1. a group of two or more atoms
- 2. as particles
- 3. has a uniform apperance
- 4. widely spaced particle spacing
- 6. the mass of matter contained within a particular volume
- 7. does not have a uniform apperance
- 10. close particle spacing in fluid form
- 14. a pure substance consisting of atoms of two or more different atomic numbers
- 16. the amount of matter in an object