Chapter 1

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Across
  1. 1. is the science that studies matter
  2. 3. type of chemical change that gives out energy
  3. 4. is the simplest form of matter
  4. 7. type of change that does not change the structure of matter
  5. 11. everything that takes up space and has a mass
  6. 12. is two or more elements together
  7. 13. two or more substances together
Down
  1. 2. type of mixture like air
  2. 5. type of observation that does not require any measurements
  3. 6. type of observation that requires measurements
  4. 8. type of mixture like water and oil
  5. 9. type of change that canoes the structure of matter
  6. 10. type of chemical change that absorbs energy