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Static Electricity Experiment Worksheet

Science experiments lesson 21: Static electricity: comb and paper bits · Set 269 · 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.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? True or false: distance to the paper is the one thing we change. (a) True (b) False
  2. 2.🔮 Predict: you rub a balloon on dry hair and hold it on a wall. What happens? (a) it falls straight down (b) it turns into water (c) it sticks for a while (d) it bursts at once
  3. 3.⚡ A rubbed comb is held near a steel spoon. What happens? (a) does not move (b) jumps to the comb
  4. 4.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? True or false: number of rubs is kept the same. (a) True (b) False
  5. 5.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? True or false: distance to the paper is kept the same. (a) True (b) False
  6. 6.🔮 Predict: you wet the comb before trying again. What happens? (a) it lights up (b) it becomes a magnet (c) it hardly works (d) it works better
  7. 7.🧺 Do we need vinegar for the static comb? (a) needed (b) not needed
  8. 8.True or false: dry hair jumps to a charged comb. (a) False (b) True
  9. 9.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? What do we do with “distance to the paper”? (a) we keep it the same (b) we measure it (c) we change it
  10. 10.True or false: a battery cell is not needed for the static comb. (a) True (b) False
  11. 11.🧺 Do we need turmeric powder for the static comb? (a) needed (b) not needed
  12. 12.True or false: a plastic comb is needed for the static comb. (a) True (b) False
  13. 13.⚡ Which of these does not move to a charged comb? (a) a pebble (b) puffed rice (c) thermocol bits (d) dry hair
  14. 14.🧺 Which of these is not needed for the static comb? (a) dry hair (b) tiny paper bits (c) a plastic comb (d) a mirror
  15. 15.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? True or false: number of rubs is the one thing we change. (a) False (b) True
  16. 16.🔍 Which is the odd one out? (a) a thin water stream (b) a pebble (c) thermocol bits (d) tiny paper bits
  17. 17.True or false: a steel spoon does not move to a charged comb. (a) False (b) True
  18. 18.True or false: a battery cell is needed for the static comb. (a) False (b) True
  19. 19.🧺 Which of these is not needed for the static comb? (a) a plastic comb (b) dry hair (c) tiny paper bits (d) a magnet
  20. 20.True or false: tiny paper bits is 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 same comb is kept the same. (a) True (b) False
  22. 22.⚡ Which of these jumps to a charged comb? (a) a pebble (b) tiny paper bits (c) a heavy book (d) a brick
  23. 23.⚡ A rubbed comb is held near puffed rice. What happens? (a) jumps to the comb (b) does not move
  24. 24.True or false: a steel spoon jumps to a charged comb. (a) False (b) True
  25. 25.⚡ Which of these does not move to a charged comb? (a) dry hair (b) puffed rice (c) tiny paper bits (d) a steel spoon
  26. 26.True or false: a brick jumps to a charged comb. (a) False (b) True
  27. 27.⚡ Which of these does not move to a charged comb? (a) tiny paper bits (b) thermocol bits (c) a heavy book (d) a thin water stream
  28. 28.⚡ Why does the rubbed comb pull the paper bits? (a) it is hot (b) it is a magnet (c) it is sticky (d) it has static charge
  29. 29.🛟 Static from a comb is safe. Which electricity must children never play with? (a) a rubbed balloon (b) a rubbed plastic comb (c) paper bits on a comb (d) plug points at home
  30. 30.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) vinegar (b) a balloon (c) dry hair (d) a plastic comb
  31. 31.True or false: puffed rice jumps to a charged comb. (a) True (b) False
  32. 32.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? What do we do with “the same hair”? (a) we keep it the same (b) we change it (c) we measure it
  33. 33.🧺 Which of these is not needed for the static comb? (a) a plastic comb (b) dry hair (c) a balloon (d) yeast
  34. 34.⚡ Which big natural spark is caused by static electricity? (a) lightning (b) a rainbow (c) dew (d) the wind
  35. 35.🧺 Do we need a balloon for the static comb? (a) not needed (b) needed
  36. 36.True or false: tiny paper bits does not move to a charged comb. (a) True (b) False
  37. 37.True or false: dry hair is not needed for the static comb. (a) False (b) True
  38. 38.🛟 There is lightning outside. Where is it safest to be? (a) in an open field (b) on a rooftop (c) under a tall tree (d) indoors
  39. 39.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? True or false: paper bits picked up is what we measure. (a) False (b) True
  40. 40.⚡ 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

Answer key

  1. False
  2. it sticks for a while
  3. does not move
  4. False
  5. True
  6. it hardly works
  7. not needed
  8. True
  9. we keep it the same
  10. True
  11. not needed
  12. True
  13. a pebble
  14. a mirror
  15. True
  16. a pebble
  17. True
  18. False
  19. a magnet
  20. True
  21. True
  22. tiny paper bits
  23. jumps to the comb
  24. False
  25. a steel spoon
  26. False
  27. a heavy book
  28. it has static charge
  29. plug points at home
  30. vinegar
  31. True
  32. we keep it the same
  33. yeast
  34. lightning
  35. needed
  36. False
  37. False
  38. indoors
  39. True
  40. damp air leaks charge

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