Esvin 2.1 vocab

12345678
Across
  1. 2. chemical reaction that gives off heat energy.
  2. 4. the substances present before a chemical reaction occurs in a chemical reaction the arrows.
  3. 5. a chemical reaction that absorbs heat energy.
  4. 7. when something changes into new substance.
Down
  1. 1. a chemical change an process that changes substances in to new substances.
  2. 3. the substances that are formed during a chemical reaction in a chemical reaction the arrows.
  3. 6. a change in matter that doesn't effect its atom
  4. 8. material that has mass and takes up some amount of space.