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Static Electricity Experiment Worksheet

Science experiments lesson 21: Static electricity: comb and paper bits · Set 893 · 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.⚡ Why does the rubbed comb pull the paper bits? (a) it is hot (b) it has static charge (c) it is a magnet (d) it is sticky
  2. 2.⚡ A rubbed comb is held near a pebble. What happens? (a) jumps to the comb (b) does not move
  3. 3.True or false: a mirror is needed for the static comb. (a) False (b) True
  4. 4.True or false: thermocol bits jumps to a charged comb. (a) True (b) False
  5. 5.🛟 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
  6. 6.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? True or false: the same hair is what we measure. (a) True (b) False
  7. 7.True or false: dry hair does not move to a charged comb. (a) True (b) False
  8. 8.🔍 Which is the odd one out? (a) a heavy book (b) puffed rice (c) a pebble (d) a brick
  9. 9.⚡ Which big natural spark is caused by static electricity? (a) dew (b) a rainbow (c) lightning (d) the wind
  10. 10.🧺 Do we need a battery cell for the static comb? (a) needed (b) not needed
  11. 11.🧺 Do we need a plastic comb for the static comb? (a) not needed (b) needed
  12. 12.🧺 Which of these is needed for the static comb? (a) vinegar (b) a plastic comb (c) a mirror (d) yeast
  13. 13.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? Which of these is the one thing we change? (a) the paper bit size (b) number of rubs (c) the same hair (d) the same comb
  14. 14.🧺 Which of these is not needed for the static comb? (a) a balloon (b) a plastic comb (c) dry hair (d) turmeric powder
  15. 15.⚡ Why does the comb trick work best on a dry day? (a) dry days are noisy (b) damp air leaks charge (c) water adds charge (d) wet hair is magnetic
  16. 16.True or false: a steel spoon jumps to a charged comb. (a) True (b) False
  17. 17.True or false: puffed rice jumps to a charged comb. (a) True (b) False
  18. 18.🧺 Which of these is not needed for the static comb? (a) a plastic comb (b) a magnet (c) a balloon (d) tiny paper bits
  19. 19.True or false: a balloon is not needed for the static comb. (a) True (b) False
  20. 20.🧺 Which of these is needed for the static comb? (a) vinegar (b) a magnet (c) dry hair (d) a mirror
  21. 21.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? What do we do with “the paper bit size”? (a) we change it (b) we measure it (c) we keep it the same
  22. 22.🔮 Predict: you rub a balloon on dry hair and hold it on a wall. What happens? (a) it turns into water (b) it falls straight down (c) it sticks for a while (d) it bursts at once
  23. 23.🧺 Which of these is needed for the static comb? (a) a mirror (b) a magnet (c) tiny paper bits (d) a battery cell
  24. 24.🧺 Do we need turmeric powder for the static comb? (a) not needed (b) needed
  25. 25.🧺 Do we need tiny paper bits for the static comb? (a) not needed (b) needed
  26. 26.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? True or false: number of rubs is what we measure. (a) True (b) False
  27. 27.True or false: turmeric powder is not needed for the static comb. (a) True (b) False
  28. 28.⚡ A rubbed comb is held near a steel spoon. What happens? (a) does not move (b) jumps to the comb
  29. 29.⚡ A rubbed comb is held near dry hair. What happens? (a) jumps to the comb (b) does not move
  30. 30.🔍 Which is the odd one out? (a) a pebble (b) a steel spoon (c) tiny paper bits (d) a brick
  31. 31.🧺 Which of these is needed for the static comb? (a) a mirror (b) a balloon (c) yeast (d) a battery cell
  32. 32.⚖️ 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
  33. 33.True or false: thermocol bits does not move to a charged comb. (a) True (b) False
  34. 34.🔮 Predict: a charged comb is held near a thin stream of tap water. What happens? (a) the water stops (b) nothing at all (c) the water freezes (d) the stream bends
  35. 35.True or false: a thin water stream jumps to a charged comb. (a) False (b) True
  36. 36.True or false: a brick does not move to a charged comb. (a) True (b) False
  37. 37.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) dry hair (b) turmeric powder (c) a balloon (d) tiny paper bits
  38. 38.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? Which of these is what we measure? (a) paper bits picked up (b) the same hair (c) number of rubs (d) the paper bit size
  39. 39.True or false: a magnet is needed for the static comb. (a) False (b) True
  40. 40.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? What do we do with “the same comb”? (a) we measure it (b) we keep it the same (c) we change it

Answer key

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

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