Physical Science Week 3: Changing Matter

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Across
  1. 3. a chemical reaction where a compound is broken down into two or more simpler substances
  2. 5. a chemical reaction during which heat is release
  3. 7. a substance produced in a chemical reaction
  4. 9. a chemical reaction during which heat is absorbed
Down
  1. 1. a chemical reaction where a free element replaces another element in a compound
  2. 2. a chemical reaction where an acid and a base form a salt
  3. 4. the chemical process of burning
  4. 6. a chemical reaction where two or more substances are joined to form a compound
  5. 8. a substance that goes into a chemical reaction