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Static Electricity Experiment Worksheet

Science experiments lesson 21: Static electricity: comb and paper bits · Set 352 · 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.

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  1. 1.🛟 Static from a comb is safe. Which electricity must children never play with? (a) plug points at home (b) a rubbed balloon (c) paper bits on a comb (d) a rubbed plastic comb
  2. 2.🔍 Which is the odd one out? (a) dry hair (b) a thin water stream (c) a pebble (d) puffed rice
  3. 3.🔮 Predict: you wet the comb before trying again. What happens? (a) it hardly works (b) it becomes a magnet (c) it lights up (d) it works better
  4. 4.⚡ A rubbed comb is held near a heavy book. What happens? (a) jumps to the comb (b) does not move
  5. 5.🔍 Which is the odd one out? (a) tiny paper bits (b) a brick (c) thermocol bits (d) a thin water stream
  6. 6.🔍 Which is the odd one out? (a) a steel spoon (b) a pebble (c) dry hair (d) a brick
  7. 7.⚡ Which of these does not move to a charged comb? (a) puffed rice (b) dry hair (c) a thin water stream (d) a brick
  8. 8.🧺 Which of these is needed for the static comb? (a) yeast (b) dry hair (c) a magnet (d) vinegar
  9. 9.🧺 Which of these is not needed for the static comb? (a) turmeric powder (b) a balloon (c) a plastic comb (d) dry hair
  10. 10.True or false: a thin water stream does not move to a charged comb. (a) True (b) False
  11. 11.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? Which of these is the one thing we change? (a) the same comb (b) distance to the paper (c) paper bits picked up (d) number of rubs
  12. 12.🔍 Which is the odd one out? (a) dry hair (b) a steel spoon (c) puffed rice (d) a thin water stream
  13. 13.⚡ A rubbed comb is held near tiny paper bits. What happens? (a) jumps to the comb (b) does not move
  14. 14.🧺 Which of these is needed for the static comb? (a) a magnet (b) a mirror (c) turmeric powder (d) a plastic comb
  15. 15.🔮 Predict: you rub a balloon on dry hair and hold it on a wall. What happens? (a) it bursts at once (b) it turns into water (c) it sticks for a while (d) it falls straight down
  16. 16.True or false: a mirror is needed for the static comb. (a) True (b) False
  17. 17.True or false: a plastic comb is needed for the static comb. (a) False (b) True
  18. 18.⚖️ 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) False (b) True
  19. 19.🛟 There is lightning outside. Where is it safest to be? (a) in an open field (b) under a tall tree (c) indoors (d) on a rooftop
  20. 20.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) tiny paper bits (b) yeast (c) a plastic comb (d) a balloon
  21. 21.True or false: dry hair does not move to a charged comb. (a) False (b) True
  22. 22.🧺 Which of these is not needed for the static comb? (a) tiny paper bits (b) a mirror (c) a plastic comb (d) a balloon
  23. 23.True or false: a battery cell is needed for the static comb. (a) True (b) False
  24. 24.⚡ Why does the rubbed comb pull the paper bits? (a) it is a magnet (b) it is sticky (c) it has static charge (d) it is hot
  25. 25.True or false: a balloon is not needed for the static comb. (a) True (b) False
  26. 26.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) a plastic comb (b) a balloon (c) tiny paper bits (d) a battery cell
  27. 27.⚡ A rubbed comb is held near a pebble. What happens? (a) jumps to the comb (b) does not move
  28. 28.🧺 Do we need a balloon for the static comb? (a) needed (b) not needed
  29. 29.True or false: vinegar is not needed for the static comb. (a) True (b) False
  30. 30.⚡ Which of these does not move to a charged comb? (a) a heavy book (b) thermocol bits (c) a thin water stream (d) puffed rice
  31. 31.⚡ Which of these does not move to a charged comb? (a) a pebble (b) tiny paper bits (c) dry hair (d) thermocol bits
  32. 32.🧺 Do we need turmeric powder for the static comb? (a) needed (b) not needed
  33. 33.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? True or false: number of rubs is kept the same. (a) False (b) True
  34. 34.🔮 Predict: a charged comb is held near a thin stream of tap water. What happens? (a) the stream bends (b) nothing at all (c) the water freezes (d) the water stops
  35. 35.⚡ A rubbed comb is held near a steel spoon. What happens? (a) jumps to the comb (b) does not move
  36. 36.🧺 Do we need dry hair for the static comb? (a) not needed (b) needed
  37. 37.True or false: yeast is needed for the static 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 paper bit size”? (a) we keep it the same (b) we measure it (c) we change it
  39. 39.True or false: tiny paper bits jumps to a charged comb. (a) False (b) True
  40. 40.🧺 Which of these is not needed for the static comb? (a) dry hair (b) a balloon (c) a plastic comb (d) yeast

Answer key

  1. plug points at home
  2. a pebble
  3. it hardly works
  4. does not move
  5. a brick
  6. dry hair
  7. a brick
  8. dry hair
  9. turmeric powder
  10. False
  11. number of rubs
  12. a steel spoon
  13. jumps to the comb
  14. a plastic comb
  15. it sticks for a while
  16. False
  17. True
  18. False
  19. indoors
  20. yeast
  21. False
  22. a mirror
  23. False
  24. it has static charge
  25. False
  26. a battery cell
  27. does not move
  28. needed
  29. True
  30. a heavy book
  31. a pebble
  32. not needed
  33. False
  34. the stream bends
  35. does not move
  36. needed
  37. False
  38. we keep it the same
  39. True
  40. yeast

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