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Static Electricity Experiment Worksheet

Science experiments lesson 21: Static electricity: comb and paper bits · Set 710 · 40 questions
TalentJR

What you do (Rub and charge): 1. Tear a sheet of paper into tiny bits on a table. 2. Comb dry, clean hair quickly 10 times. 3. Hold the comb just above the paper bits and watch. 4. Try again with 20 combs, and count the bits each time.

NameDateTime takenScore ___ / 40
  1. 1.🔍 Which is the odd one out? (a) thermocol bits (b) puffed rice (c) tiny paper bits (d) a steel spoon
  2. 2.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? Which of these is what we measure? (a) the same comb (b) the paper bit size (c) paper bits picked up (d) distance to the paper
  3. 3.⚡ A rubbed comb is held near a brick. What happens? (a) jumps to the comb (b) does not move
  4. 4.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? True or false: the paper bit size is kept the same. (a) True (b) False
  5. 5.🔮 Predict: a charged comb is held near a thin stream of tap water. What happens? (a) nothing at all (b) the water freezes (c) the stream bends (d) the water stops
  6. 6.🛟 There is lightning outside. Where is it safest to be? (a) under a tall tree (b) in an open field (c) indoors (d) on a rooftop
  7. 7.⚡ Why does the comb trick work best on a dry day? (a) damp air leaks charge (b) wet hair is magnetic (c) water adds charge (d) dry days are noisy
  8. 8.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? Which of these is the one thing we change? (a) number of rubs (b) the same hair (c) distance to the paper (d) the same comb
  9. 9.True or false: a heavy book does not move to a charged comb. (a) False (b) True
  10. 10.🧺 Do we need vinegar for the static comb? (a) needed (b) not needed
  11. 11.True or false: a battery cell is not needed for the static comb. (a) False (b) True
  12. 12.⚡ Which big natural spark is caused by static electricity? (a) a rainbow (b) the wind (c) dew (d) lightning
  13. 13.⚡ A rubbed comb is held near thermocol bits. What happens? (a) does not move (b) jumps to the comb
  14. 14.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? True or false: the same comb is what we measure. (a) True (b) False
  15. 15.True or false: turmeric powder is not needed for the static comb. (a) False (b) True
  16. 16.⚡ Why does the rubbed comb pull the paper bits? (a) it is a magnet (b) it is sticky (c) it is hot (d) it has static charge
  17. 17.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) a plastic comb (b) a balloon (c) yeast (d) tiny paper bits
  18. 18.True or false: a magnet is not needed for the static comb. (a) True (b) False
  19. 19.🔍 Which is the odd one out? (a) a steel spoon (b) a brick (c) a heavy book (d) thermocol bits
  20. 20.True or false: yeast is not needed for the static comb. (a) False (b) True
  21. 21.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? True or false: the paper bit size is the one thing we change. (a) False (b) True
  22. 22.⚡ A rubbed comb is held near a steel spoon. What happens? (a) does not move (b) jumps to the comb
  23. 23.True or false: a brick jumps to a charged comb. (a) False (b) True
  24. 24.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? What do we do with “the same hair”? (a) we measure it (b) we keep it the same (c) we change it
  25. 25.⚡ Which of these jumps to a charged comb? (a) a pebble (b) a heavy book (c) a brick (d) thermocol bits
  26. 26.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? True or false: the same comb is the one thing we change. (a) False (b) True
  27. 27.🔍 Which is the odd one out? (a) dry hair (b) thermocol bits (c) a pebble (d) puffed rice
  28. 28.True or false: tiny paper bits does not move to a charged comb. (a) False (b) True
  29. 29.⚡ Which of these does not move to a charged comb? (a) a brick (b) tiny paper bits (c) a thin water stream (d) thermocol bits
  30. 30.True or false: yeast is needed for the static comb. (a) True (b) False
  31. 31.🧺 Which of these is needed for the static comb? (a) a balloon (b) a battery cell (c) a magnet (d) yeast
  32. 32.🧺 Do we need turmeric powder for the static comb? (a) not needed (b) needed
  33. 33.🛟 Static from a comb is safe. Which electricity must children never play with? (a) a rubbed plastic comb (b) a rubbed balloon (c) plug points at home (d) paper bits on a comb
  34. 34.⚡ A rubbed comb is held near tiny paper bits. What happens? (a) jumps to the comb (b) does not move
  35. 35.True or false: a steel spoon does not move to a charged comb. (a) True (b) False
  36. 36.🧺 Do we need dry hair for the static comb? (a) not needed (b) needed
  37. 37.True or false: a plastic comb is not needed for the static comb. (a) True (b) False
  38. 38.⚡ A rubbed comb is held near a thin water stream. What happens? (a) does not move (b) jumps to the comb
  39. 39.🔍 Which is the odd one out? (a) a heavy book (b) a pebble (c) a steel spoon (d) tiny paper bits
  40. 40.True or false: puffed rice does not move to a charged comb. (a) True (b) False

Answer key

  1. a steel spoon
  2. paper bits picked up
  3. does not move
  4. True
  5. the stream bends
  6. indoors
  7. damp air leaks charge
  8. number of rubs
  9. True
  10. not needed
  11. True
  12. lightning
  13. jumps to the comb
  14. False
  15. True
  16. it has static charge
  17. yeast
  18. True
  19. thermocol bits
  20. True
  21. False
  22. does not move
  23. False
  24. we keep it the same
  25. thermocol bits
  26. False
  27. a pebble
  28. False
  29. a brick
  30. False
  31. a balloon
  32. not needed
  33. plug points at home
  34. jumps to the comb
  35. True
  36. needed
  37. False
  38. jumps to the comb
  39. tiny paper bits
  40. False

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