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Static Electricity Experiment Worksheet

Science experiments lesson 21: Static electricity: comb and paper bits · Set 647 · 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.🧺 Do we need a magnet for the static comb? (a) needed (b) not needed
  2. 2.⚡ Why does the comb trick work best on a dry day? (a) water adds charge (b) dry days are noisy (c) damp air leaks charge (d) wet hair is magnetic
  3. 3.🔮 Predict: you rub a balloon on dry hair and hold it on a wall. What happens? (a) it bursts at once (b) it sticks for a while (c) it falls straight down (d) it turns into water
  4. 4.⚡ A rubbed comb is held near tiny paper bits. What happens? (a) does not move (b) jumps to the comb
  5. 5.⚡ Which big natural spark is caused by static electricity? (a) the wind (b) a rainbow (c) dew (d) lightning
  6. 6.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) a magnet (b) a balloon (c) dry hair (d) a plastic comb
  7. 7.🔮 Predict: you wet the comb before trying again. What happens? (a) it becomes a magnet (b) it hardly works (c) it works better (d) it lights up
  8. 8.🔍 Which is the odd one out? (a) puffed rice (b) a pebble (c) thermocol bits (d) tiny paper bits
  9. 9.True or false: yeast is not needed for the static comb. (a) True (b) False
  10. 10.🧺 Do we need a mirror for the static comb? (a) not needed (b) needed
  11. 11.⚖️ 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
  12. 12.🧺 Do we need yeast for the static comb? (a) not needed (b) needed
  13. 13.🔍 Which is the odd one out? (a) thermocol bits (b) tiny paper bits (c) a thin water stream (d) a brick
  14. 14.True or false: a magnet is not needed for the static comb. (a) False (b) True
  15. 15.True or false: vinegar is not needed for the static comb. (a) False (b) True
  16. 16.🧺 Do we need vinegar for the static comb? (a) needed (b) not needed
  17. 17.True or false: a balloon is not needed for the static comb. (a) True (b) False
  18. 18.🧺 Do we need dry hair for the static comb? (a) not needed (b) needed
  19. 19.⚖️ 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
  20. 20.⚡ You comb dry hair and hold the comb near tiny paper bits. What happens? (a) the bits jump to it (b) nothing happens (c) they turn blue (d) they turn wet
  21. 21.⚖️ 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
  22. 22.🧺 Do we need tiny paper bits for the static comb? (a) needed (b) not needed
  23. 23.🧺 Which of these is needed for the static comb? (a) turmeric powder (b) vinegar (c) a mirror (d) tiny paper bits
  24. 24.🧺 Do we need turmeric powder for the static comb? (a) not needed (b) needed
  25. 25.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? True or false: the same comb is what we measure. (a) True (b) False
  26. 26.True or false: a thin water stream jumps to a charged comb. (a) True (b) False
  27. 27.🧺 Which of these is needed for the static comb? (a) a magnet (b) yeast (c) vinegar (d) a plastic comb
  28. 28.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) a plastic comb (b) turmeric powder (c) tiny paper bits (d) dry hair
  29. 29.🔍 Which is the odd one out? (a) a steel spoon (b) a pebble (c) a brick (d) puffed rice
  30. 30.⚖️ 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
  31. 31.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) dry hair (b) yeast (c) tiny paper bits (d) a plastic comb
  32. 32.⚡ A rubbed comb is held near thermocol bits. What happens? (a) jumps to the comb (b) does not move
  33. 33.⚖️ 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
  34. 34.⚡ A rubbed comb is held near a brick. What happens? (a) jumps to the comb (b) does not move
  35. 35.True or false: a plastic comb is not needed for the static comb. (a) True (b) False
  36. 36.⚡ Which of these does not move to a charged comb? (a) thermocol bits (b) tiny paper bits (c) a steel spoon (d) dry hair
  37. 37.True or false: vinegar is needed for the static comb. (a) True (b) False
  38. 38.🧺 Which of these is needed for the static comb? (a) a magnet (b) vinegar (c) a balloon (d) a mirror
  39. 39.🛟 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 plastic comb (d) a rubbed balloon
  40. 40.🔮 Predict: a charged comb is held near a thin stream of tap water. What happens? (a) the water freezes (b) nothing at all (c) the water stops (d) the stream bends

Answer key

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

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