Chemistry

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Across
  1. 5. chemical reaction that absorbs energy from the surroundings
  2. 9. objects or substances that float in water or other fluids
  3. 10. tool used to measure mass of matter
Down
  1. 1. standard international unit of measure for temperature
  2. 2. substance that is being changed in a chemical reaction
  3. 3. how much space matter takes up
  4. 4. new substance formed by a chemical reaction
  5. 6. chemical reaction that gives off energy to surroundings
  6. 7. how much matter a substance contains
  7. 8. substance with a density of 1