science chapter 2

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Across
  1. 4. the four most common elements
  2. 7. anything that has mass and takes up space
  3. 8. building blocks of all matter
  4. 9. a distinct group of two or more atoms covalently bonded together
  5. 11. reactants always combined in the same ratio
  6. 13. does not have a uniform appearance since the substances are evenly distributed
  7. 14. states that all physical matter exists in the form of particels
  8. 16. the measure of gravity acting on the matter in an object
Down
  1. 1. mass of matter contained within a particular volume
  2. 2. space enclosed or occupied by an object
  3. 3. material made of only one kind of element or compound
  4. 5. different substances are mixed so that they have a uniform appearance throughout
  5. 6. a pure substance that consists of atoms of two or more different elements
  6. 10. a physical combination of two or more substances
  7. 12. a pure substance that consists of atoms with the same atomic number
  8. 15. amount of matter in an object