Gr7 PS Unit 4 Vocabulary

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Across
  1. 5. A change that happens when substances are mixed together and turn into a completely new substance.
  2. 7. Matter cannot be created or destroyed; only changed.
  3. 8. A 'math sentence' using symbols and numbers to show what happens during a chemical reaction.
  4. 9. A change in appearance without changing the substance.
Down
  1. 1. The new substance made in a chemical reaction.
  2. 2. The starting substances in a chemical reaction.
  3. 3. Energy that moves from something hot to something cold.
  4. 4. A solid that forms during a chemical reaction.
  5. 5. Letters and numbers showing which atoms and how many make up a substance.
  6. 6. Process where substances break apart and rearrange to form something new.