Science

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Across
  1. 1. – involved in all chemical changes, either absorbed or released.
  2. 5. – related to heat, especially in exothermic/endothermic reactions.
  3. 7. – an exothermic reaction that releases heat and light.
  4. 8. – a slow chemical change involving iron and oxygen.
  5. 9. – an endothermic reaction in plants using sunlight.
  6. 10. – breaking down of compounds into simpler substances.
Down
  1. 2. – a chemical reaction between an acid and a base.
  2. 3. – substances that undergo chemical change in a reaction.
  3. 4. – substances formed as a result of a chemical reaction.
  4. 6. – combining elements to form a compound.