Science Vocab

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Across
  1. 7. two or more substances that are not evenly mixed
  2. 11. describes how a substance reacts
  3. 13. any characteristic of matter that you can observe or measure without changing it into a new substance
  4. 15. two or more substances that are evenly mixed
Down
  1. 1. any change that causes a new substance to form
  2. 2. combination of two or more substances
  3. 3. made of two or more atoms joined together
  4. 4. made of only one kind of atom
  5. 5. change in which no new substances are formed
  6. 6. particle with no charge
  7. 8. negatively charged particle
  8. 9. center of an atom
  9. 10. positively charged particle
  10. 12. anything that has mass and takes up space
  11. 14. building blocks of matter