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Static Electricity Experiment Worksheet

Science experiments lesson 21: Static electricity: comb and paper bits · Set 180 · 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.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) a balloon (b) tiny paper bits (c) yeast (d) a plastic comb
  2. 2.⚖️ 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 change it (c) we keep it the same
  3. 3.🧺 Do we need a balloon for the static comb? (a) not needed (b) needed
  4. 4.🧺 Which of these is not needed for the static comb? (a) a plastic comb (b) dry hair (c) turmeric powder (d) a balloon
  5. 5.True or false: a mirror is not needed for the static comb. (a) False (b) True
  6. 6.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) tiny paper bits (b) a plastic comb (c) a battery cell (d) dry hair
  7. 7.🧺 Do we need yeast for the static comb? (a) not needed (b) needed
  8. 8.🧺 Do we need a battery cell for the static comb? (a) not needed (b) needed
  9. 9.⚡ Why does the comb trick work best on a dry day? (a) damp air leaks charge (b) wet hair is magnetic (c) dry days are noisy (d) water adds charge
  10. 10.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? Which of these is kept the same? (a) the same hair (b) paper bits picked up (c) number of rubs
  11. 11.⚡ A rubbed comb is held near a pebble. What happens? (a) jumps to the comb (b) does not move
  12. 12.🔍 Which is the odd one out? (a) puffed rice (b) dry hair (c) a thin water stream (d) a steel spoon
  13. 13.🧺 Do we need vinegar for the static comb? (a) not needed (b) needed
  14. 14.🔍 Which is the odd one out? (a) a pebble (b) a heavy book (c) puffed rice (d) a steel spoon
  15. 15.🧺 Do we need turmeric powder for the static comb? (a) not needed (b) needed
  16. 16.⚡ Which big natural spark is caused by static electricity? (a) dew (b) a rainbow (c) the wind (d) lightning
  17. 17.⚖️ 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) number of rubs (c) the paper bit size (d) paper bits picked up
  18. 18.True or false: a balloon is not needed for the static comb. (a) False (b) True
  19. 19.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? True or false: distance to the paper is what we measure. (a) False (b) True
  20. 20.True or false: dry hair does not move to a charged comb. (a) False (b) True
  21. 21.True or false: turmeric powder is needed for the static comb. (a) True (b) False
  22. 22.🔮 Predict: you wet the comb before trying again. What happens? (a) it becomes a magnet (b) it lights up (c) it hardly works (d) it works better
  23. 23.⚡ Which of these jumps to a charged comb? (a) a heavy book (b) tiny paper bits (c) a pebble (d) a steel spoon
  24. 24.True or false: a brick jumps to a charged comb. (a) False (b) True
  25. 25.⚖️ 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) False (b) True
  26. 26.📘 Rubbing moves tiny charges. What do we call the charge that builds up? (a) gravity (b) sunlight (c) static electricity (d) magnetism
  27. 27.⚡ Which of these jumps to a charged comb? (a) a pebble (b) a steel spoon (c) a heavy book (d) dry hair
  28. 28.🔮 Predict: a charged comb is held near a thin stream of tap water. What happens? (a) the water stops (b) the water freezes (c) the stream bends (d) nothing at all
  29. 29.🛟 There is lightning outside. Where is it safest to be? (a) under a tall tree (b) on a rooftop (c) indoors (d) in an open field
  30. 30.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? True or false: the same hair is kept the same. (a) True (b) False
  31. 31.True or false: a battery cell is not needed for the static comb. (a) True (b) False
  32. 32.🧺 Do we need tiny paper bits for the static comb? (a) not needed (b) needed
  33. 33.True or false: dry hair is not needed for the static comb. (a) False (b) True
  34. 34.True or false: turmeric powder is not needed for the static comb. (a) False (b) True
  35. 35.🧺 Which of these is needed for the static comb? (a) a magnet (b) dry hair (c) yeast (d) a battery cell
  36. 36.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? What do we do with “the paper bit size”? (a) we measure it (b) we change it (c) we keep it the same
  37. 37.True or false: a thin water stream jumps to a charged comb. (a) True (b) False
  38. 38.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? What do we do with “the same comb”? (a) we change it (b) we keep it the same (c) we measure it
  39. 39.🧺 Which of these is not needed for the static comb? (a) dry hair (b) yeast (c) tiny paper bits (d) a plastic comb
  40. 40.True or false: a thin water stream does not move to a charged comb. (a) False (b) True

Answer key

  1. yeast
  2. we keep it the same
  3. needed
  4. turmeric powder
  5. True
  6. a battery cell
  7. not needed
  8. not needed
  9. damp air leaks charge
  10. the same hair
  11. does not move
  12. a steel spoon
  13. not needed
  14. puffed rice
  15. not needed
  16. lightning
  17. paper bits picked up
  18. False
  19. False
  20. False
  21. False
  22. it hardly works
  23. tiny paper bits
  24. False
  25. True
  26. static electricity
  27. dry hair
  28. the stream bends
  29. indoors
  30. True
  31. True
  32. needed
  33. False
  34. True
  35. dry hair
  36. we keep it the same
  37. True
  38. we keep it the same
  39. yeast
  40. False

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