Unit 1 crossword puzzle

12345678910111213
Across
  1. 4. a homogenous mixture in which one substance dissolves another
  2. 6. property ~ can be observed without changing the identity of the substance
  3. 8. ~ the measure of the amount of matter in an object
  4. 9. ~subtance or molecule that participates in a chemical reaction
  5. 10. smallest unit of an element that maintains the properties of that element
  6. 11. anything that takes up space
  7. 12. reactions the process by which one or more substances change
  8. 13. substance formed in a chemical change or reaction
Down
  1. 1. change does not involve a change of identity of a substance
  2. 2. indefinite volume and shape
  3. 3. definite volume but indefinite shape
  4. 5. pure substance that contains one kind of atom
  5. 7. substance composed of dissimilar components not well mixed
  6. 8. combination of pure substances that are not chemically combined
  7. 13. substance ~have has definite chemical and physical properties