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Static Electricity Experiment Worksheet

Science experiments lesson 21: Static electricity: comb and paper bits · Set 757 · 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.⚡ A rubbed comb is held near a brick. What happens? (a) does not move (b) jumps to the comb
  2. 2.🛟 Static from a comb is safe. Which electricity must children never play with? (a) paper bits on a comb (b) plug points at home (c) a rubbed balloon (d) a rubbed plastic comb
  3. 3.🔮 Predict: you wet the comb before trying again. What happens? (a) it lights up (b) it hardly works (c) it works better (d) it becomes a magnet
  4. 4.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) dry hair (b) a plastic comb (c) tiny paper bits (d) a mirror
  5. 5.🧺 Do we need a battery cell for the static comb? (a) not needed (b) needed
  6. 6.🧺 Which of these is not needed for the static comb? (a) a balloon (b) tiny paper bits (c) a mirror (d) a plastic comb
  7. 7.🔍 Which is the odd one out? (a) a steel spoon (b) tiny paper bits (c) dry hair (d) a thin water stream
  8. 8.🧺 Which of these is not needed for the static comb? (a) a balloon (b) a plastic comb (c) yeast (d) dry hair
  9. 9.True or false: a steel spoon jumps to a charged comb. (a) True (b) False
  10. 10.🔍 Which is the odd one out? (a) a heavy book (b) a pebble (c) a steel spoon (d) thermocol bits
  11. 11.⚡ Why does the comb trick work best on a dry day? (a) wet hair is magnetic (b) dry days are noisy (c) water adds charge (d) damp air leaks charge
  12. 12.⚡ A rubbed comb is held near dry hair. What happens? (a) does not move (b) jumps to the comb
  13. 13.🛟 There is lightning outside. Where is it safest to be? (a) on a rooftop (b) in an open field (c) indoors (d) under a tall tree
  14. 14.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? Which of these is the one thing we change? (a) paper bits picked up (b) the same comb (c) the same hair (d) number of rubs
  15. 15.⚖️ 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
  16. 16.🧺 Do we need tiny paper bits for the static comb? (a) needed (b) not needed
  17. 17.True or false: vinegar is needed for the static comb. (a) True (b) False
  18. 18.🔍 Which is the odd one out? (a) puffed rice (b) a pebble (c) a heavy book (d) a steel spoon
  19. 19.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) dry hair (b) vinegar (c) tiny paper bits (d) a plastic comb
  20. 20.⚡ Which of these does not move to a charged comb? (a) a brick (b) tiny paper bits (c) thermocol bits (d) puffed rice
  21. 21.True or false: thermocol bits does not move to a charged comb. (a) False (b) True
  22. 22.True or false: a heavy book jumps to a charged comb. (a) False (b) True
  23. 23.🔍 Which is the odd one out? (a) thermocol bits (b) a thin water stream (c) a brick (d) tiny paper bits
  24. 24.🧺 Which of these is needed for the static comb? (a) yeast (b) turmeric powder (c) a mirror (d) dry hair
  25. 25.⚡ Which of these jumps to a charged comb? (a) a heavy book (b) thermocol bits (c) a brick (d) a steel spoon
  26. 26.⚡ A rubbed comb is held near a pebble. What happens? (a) does not move (b) jumps to the comb
  27. 27.True or false: a mirror is needed for the static comb. (a) True (b) False
  28. 28.True or false: a brick does not move to a charged comb. (a) True (b) False
  29. 29.⚖️ 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
  30. 30.🔮 Predict: you rub a balloon on dry hair and hold it on a wall. What happens? (a) it turns into water (b) it sticks for a while (c) it bursts at once (d) it falls straight down
  31. 31.⚡ Which of these does not move to a charged comb? (a) tiny paper bits (b) a heavy book (c) thermocol bits (d) dry hair
  32. 32.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? True or false: the paper bit size is the one thing we change. (a) False (b) True
  33. 33.🔍 Which is the odd one out? (a) a pebble (b) tiny paper bits (c) thermocol bits (d) puffed rice
  34. 34.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? Which of these is kept the same? (a) number of rubs (b) paper bits picked up (c) the paper bit size
  35. 35.True or false: dry hair is needed for the static comb. (a) False (b) True
  36. 36.True or false: a magnet is needed for the static comb. (a) False (b) True
  37. 37.🔮 Predict: a charged comb is held near a thin stream of tap water. What happens? (a) the stream bends (b) the water stops (c) the water freezes (d) nothing at all
  38. 38.🧺 Do we need a plastic comb for the static comb? (a) not needed (b) needed
  39. 39.⚡ A rubbed comb is held near puffed rice. What happens? (a) does not move (b) jumps to the comb
  40. 40.🧺 Which of these is not needed for the static comb? (a) a balloon (b) vinegar (c) tiny paper bits (d) a plastic comb

Answer key

  1. does not move
  2. plug points at home
  3. it hardly works
  4. a mirror
  5. not needed
  6. a mirror
  7. a steel spoon
  8. yeast
  9. False
  10. thermocol bits
  11. damp air leaks charge
  12. jumps to the comb
  13. indoors
  14. number of rubs
  15. we change it
  16. needed
  17. False
  18. puffed rice
  19. vinegar
  20. a brick
  21. False
  22. False
  23. a brick
  24. dry hair
  25. thermocol bits
  26. does not move
  27. False
  28. True
  29. True
  30. it sticks for a while
  31. a heavy book
  32. False
  33. a pebble
  34. the paper bit size
  35. True
  36. False
  37. the stream bends
  38. needed
  39. jumps to the comb
  40. vinegar

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