Science Chapter 5 Vocabulary

Edit Answers
12345678910111213141516171819
Across
  1. 5. the substances that undergo chemical changes
  2. 7. alters the appearance of something, but doesn't change it to another substance
  3. 10. when compounds come together
  4. 12. the energy absorbed during a chemical reaction
  5. 14. increases reaction rate by getting rid of activation energy
  6. 15. amount of substance in a given volume
  7. 16. when compounds break up and switch places
  8. 17. matter can enter or escape
  9. 18. when compounds break down
  10. 19. the amount of energy needed to start a chemical reaction
Down
  1. 1. the new substance from the chemical change
  2. 2. a way to show a chemical reaction using symbols
  3. 3. a solid that forms during a chemical reaction
  4. 4. a law stating matter is not created or destroyed during a chemical reaction
  5. 6. a number in front of a chemical formula
  6. 8. creates a new substance
  7. 9. the energy released during a chemical reaction
  8. 11. decreases the rate of a chemical reaction
  9. 13. help reactions occur at body temperature
  10. 14. matter can't enter or leave