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Static Electricity Experiment Worksheet

Science experiments lesson 21: Static electricity: comb and paper bits · Set 222 · 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.🧺 Do we need a magnet for the static comb? (a) needed (b) not needed
  2. 2.🧺 Which of these is needed for the static comb? (a) yeast (b) turmeric powder (c) tiny paper bits (d) a battery cell
  3. 3.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? What do we do with “number of rubs”? (a) we change it (b) we keep it the same (c) we measure it
  4. 4.⚖️ 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) True (b) False
  5. 5.⚡ A rubbed comb is held near a thin water stream. What happens? (a) does not move (b) jumps to the comb
  6. 6.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? Which of these is the one thing we change? (a) distance to the paper (b) number of rubs (c) the same comb (d) paper bits picked up
  7. 7.⚡ Which of these jumps to a charged comb? (a) a pebble (b) a heavy book (c) a brick (d) thermocol bits
  8. 8.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) a magnet (b) dry hair (c) tiny paper bits (d) a balloon
  9. 9.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? What do we do with “paper bits picked up”? (a) we change it (b) we keep it the same (c) we measure it
  10. 10.True or false: a heavy book jumps 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 what we measure? (a) the same comb (b) the paper bit size (c) paper bits picked up (d) number of rubs
  12. 12.True or false: a thin water stream jumps to a charged comb. (a) False (b) True
  13. 13.⚡ Which big natural spark is caused by static electricity? (a) a rainbow (b) dew (c) lightning (d) the wind
  14. 14.🧺 Do we need yeast for the static comb? (a) not needed (b) needed
  15. 15.True or false: a thin water stream does not move to a charged comb. (a) False (b) True
  16. 16.⚖️ 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
  17. 17.True or false: a steel spoon jumps to a charged comb. (a) False (b) True
  18. 18.⚡ Which of these does not move to a charged comb? (a) tiny paper bits (b) a brick (c) thermocol bits (d) a thin water stream
  19. 19.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? What do we do with “the same comb”? (a) we keep it the same (b) we measure it (c) we change it
  20. 20.⚡ A rubbed comb is held near puffed rice. What happens? (a) does not move (b) jumps to the comb
  21. 21.⚡ Which of these does not move to a charged comb? (a) thermocol bits (b) tiny paper bits (c) a thin water stream (d) a steel spoon
  22. 22.True or false: dry hair does not move to a charged comb. (a) True (b) False
  23. 23.True or false: a steel spoon does not move to a charged comb. (a) False (b) True
  24. 24.🧺 Which of these is not needed for the static comb? (a) a balloon (b) a magnet (c) tiny paper bits (d) dry hair
  25. 25.🛟 Static from a comb is safe. Which electricity must children never play with? (a) a rubbed balloon (b) a rubbed plastic comb (c) plug points at home (d) paper bits on a comb
  26. 26.🔮 Predict: you rub a balloon on dry hair and hold it on a wall. What happens? (a) it falls straight down (b) it bursts at once (c) it turns into water (d) it sticks for a while
  27. 27.🛟 There is lightning outside. Where is it safest to be? (a) indoors (b) under a tall tree (c) in an open field (d) on a rooftop
  28. 28.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) tiny paper bits (b) a mirror (c) a plastic comb (d) dry hair
  29. 29.⚡ Which of these jumps to a charged comb? (a) a heavy book (b) a brick (c) a pebble (d) puffed rice
  30. 30.⚖️ 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
  31. 31.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) tiny paper bits (b) yeast (c) dry hair (d) a plastic comb
  32. 32.True or false: tiny paper bits is not needed for the static comb. (a) False (b) True
  33. 33.🧺 Which of these is not needed for the static comb? (a) a plastic comb (b) tiny paper bits (c) a battery cell (d) dry hair
  34. 34.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) dry hair (b) vinegar (c) a balloon (d) a plastic comb
  35. 35.True or false: a magnet is needed for the static comb. (a) False (b) True
  36. 36.🔍 Which is the odd one out? (a) a thin water stream (b) thermocol bits (c) dry hair (d) a heavy book
  37. 37.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) a balloon (b) tiny paper bits (c) a battery cell (d) dry hair
  38. 38.⚡ Which of these does not move to a charged comb? (a) thermocol bits (b) a pebble (c) dry hair (d) tiny paper bits
  39. 39.⚡ Which of these jumps to a charged comb? (a) a thin water stream (b) a brick (c) a steel spoon (d) a pebble
  40. 40.🔮 Predict: you wet the comb before trying again. What happens? (a) it becomes a magnet (b) it hardly works (c) it lights up (d) it works better

Answer key

  1. not needed
  2. tiny paper bits
  3. we change it
  4. False
  5. jumps to the comb
  6. number of rubs
  7. thermocol bits
  8. a magnet
  9. we measure it
  10. False
  11. paper bits picked up
  12. True
  13. lightning
  14. not needed
  15. False
  16. True
  17. False
  18. a brick
  19. we keep it the same
  20. jumps to the comb
  21. a steel spoon
  22. False
  23. True
  24. a magnet
  25. plug points at home
  26. it sticks for a while
  27. indoors
  28. a mirror
  29. puffed rice
  30. we keep it the same
  31. yeast
  32. False
  33. a battery cell
  34. vinegar
  35. False
  36. a heavy book
  37. a battery cell
  38. a pebble
  39. a thin water stream
  40. it hardly works

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