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Static Electricity Experiment Worksheet

Science experiments lesson 21: Static electricity: comb and paper bits · Set 912 · 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.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? What do we do with “distance to the paper”? (a) we keep it the same (b) we change it (c) we measure it
  2. 2.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) a mirror (b) a plastic comb (c) a balloon (d) dry hair
  3. 3.True or false: puffed rice jumps to a charged comb. (a) True (b) False
  4. 4.🧺 Do we need a battery cell for the static comb? (a) needed (b) not needed
  5. 5.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? What do we do with “number of rubs”? (a) we measure it (b) we keep it the same (c) we change it
  6. 6.⚖️ 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
  7. 7.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? True or false: number of rubs is the one thing we change. (a) False (b) True
  8. 8.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) a plastic comb (b) tiny paper bits (c) yeast (d) dry hair
  9. 9.🔮 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 stops (d) the water freezes
  10. 10.🔍 Which is the odd one out? (a) thermocol bits (b) a pebble (c) tiny paper bits (d) puffed rice
  11. 11.True or false: dry hair is not needed for the static comb. (a) False (b) True
  12. 12.🧺 Which of these is not needed for the static comb? (a) a plastic comb (b) a balloon (c) dry hair (d) vinegar
  13. 13.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) a balloon (b) a battery cell (c) a plastic comb (d) tiny paper bits
  14. 14.⚡ Which of these jumps to a charged comb? (a) a heavy book (b) puffed rice (c) a pebble (d) a steel spoon
  15. 15.True or false: a battery cell is not needed for the static comb. (a) True (b) False
  16. 16.⚡ Which big natural spark is caused by static electricity? (a) the wind (b) lightning (c) a rainbow (d) dew
  17. 17.⚡ A rubbed comb is held near a brick. What happens? (a) jumps to the comb (b) does not move
  18. 18.🛟 Static from a comb is safe. Which electricity must children never play with? (a) a rubbed plastic comb (b) plug points at home (c) paper bits on a comb (d) a rubbed balloon
  19. 19.🔮 Predict: you wet the comb before trying again. What happens? (a) it works better (b) it lights up (c) it becomes a magnet (d) it hardly works
  20. 20.⚡ A rubbed comb is held near thermocol bits. What happens? (a) does not move (b) jumps to the comb
  21. 21.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) dry hair (b) a plastic comb (c) vinegar (d) tiny paper bits
  22. 22.🔮 Predict: you rub a balloon on dry hair and hold it on a wall. What happens? (a) it sticks for a while (b) it bursts at once (c) it falls straight down (d) it turns into water
  23. 23.⚖️ 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
  24. 24.⚖️ 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
  25. 25.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? True or false: number of rubs is what we measure. (a) False (b) True
  26. 26.True or false: a brick jumps to a charged comb. (a) False (b) True
  27. 27.🧺 Do we need a balloon for the static comb? (a) needed (b) not needed
  28. 28.True or false: vinegar is not needed for the static comb. (a) False (b) True
  29. 29.🧺 Do we need a mirror for the static comb? (a) needed (b) not needed
  30. 30.🧺 Do we need yeast for the static comb? (a) needed (b) not needed
  31. 31.🧺 Do we need dry hair for the static comb? (a) not needed (b) needed
  32. 32.🧺 Which of these is not needed for the static comb? (a) dry hair (b) a plastic comb (c) a magnet (d) tiny paper bits
  33. 33.⚡ Why does the rubbed comb pull the paper bits? (a) it has static charge (b) it is hot (c) it is sticky (d) it is a magnet
  34. 34.📘 Rubbing moves tiny charges. What do we call the charge that builds up? (a) gravity (b) magnetism (c) static electricity (d) sunlight
  35. 35.🔍 Which is the odd one out? (a) a heavy book (b) puffed rice (c) dry hair (d) a thin water stream
  36. 36.True or false: a balloon is not needed for the static comb. (a) True (b) False
  37. 37.🔍 Which is the odd one out? (a) dry hair (b) a heavy book (c) a pebble (d) a steel spoon
  38. 38.🧺 Which of these is needed for the static comb? (a) yeast (b) a balloon (c) a magnet (d) a mirror
  39. 39.True or false: a steel spoon does not move to a charged comb. (a) False (b) True
  40. 40.🔍 Which is the odd one out? (a) a pebble (b) puffed rice (c) a steel spoon (d) a brick

Answer key

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

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