Grade 7 Review

1234567891011121314151617181920212223242526272829303132
Across
  1. 4. Your teacher.
  2. 6. One type of circuit.
  3. 9. We only need small amounts of this food substance.
  4. 10. The taste of some alkalis.
  5. 11. Using these can tell you the pH of a substance.
  6. 15. One type of circuit.
  7. 18. How much energy is given by a cell to make a current.
  8. 19. These move through a circuit to make current.
  9. 21. A solution becomes this when no more particles can dissolve.
  10. 22. Substance that another substance dissolves into.
  11. 24. Substance that dissolves into another substance.
  12. 25. Food substances that provide us with a lot of energy.
  13. 27. A solution with very few dissolved particles.
  14. 28. Food substance that is good for building muscle.
  15. 29. One source of electrical energy.
  16. 31. This can open or close a circuit.
  17. 32. Substances that will not dissolve are _________.
Down
  1. 1. What happens when an acid and an alkali are mixed.
  2. 2. Unit for measuring the size of currents.
  3. 3. Problem caused by sulfur dioxide and nitrogen oxides dissolving in rainwater.
  4. 5. A substance with pH of 7.0.
  5. 7. Unit used for measuring energy from food.
  6. 8. Eating a variety of foods in the right amounts.
  7. 12. A slippery alkali.
  8. 13. This gas makes normal rain slightly acidic.
  9. 14. Breaking down food substances into smaller and simpler forms.
  10. 16. Substances that cannot conduct electricity well.
  11. 17. Food substance that has no energy value.
  12. 20. A product of neutralization.
  13. 22. A product of neutralization.
  14. 23. When current passes through a conductor, some of the energy is changed to this type of energy.
  15. 26. Part of the digestive system.
  16. 30. An acidic fruit.