Rates of reaction

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Across
  1. 4. This is the name of a biological catalyst
  2. 5. A scientist does this when looking closely at a reaction
  3. 7. Temperature is measured in degrees _______
  4. 9. This is a special substance added to increase the rate of reaction without being used up
  5. 11. The number of particles of a substance in a volume
  6. 12. When the particle size is decreased, more of the outside of the substance can touch the reactant
  7. 13. Can be given off during a chemical reaction (you would see bubbles)
Down
  1. 1. A chemical reaction could give off this in the form of heat or light.
  2. 2. Increasing this (how hot the substance is) would increase the rate of reaction
  3. 3. The substance made in a chemical reaction
  4. 6. The substances mixed together in a chemical reaction
  5. 8. ____ of reaction is how quickly the reaction completes
  6. 10. The time for a reaction is measured in