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Static Electricity Experiment Worksheet

Science experiments lesson 21: Static electricity: comb and paper bits · Set 48 · 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.🧺 Which of these is needed for the static comb? (a) tiny paper bits (b) turmeric powder (c) a magnet (d) a battery cell
  2. 2.🧺 Do we need turmeric powder for the static comb? (a) not needed (b) needed
  3. 3.⚡ You comb dry hair and hold the comb near tiny paper bits. What happens? (a) they turn wet (b) they turn blue (c) the bits jump to it (d) nothing happens
  4. 4.🔍 Which is the odd one out? (a) puffed rice (b) a thin water stream (c) tiny paper bits (d) a brick
  5. 5.🧺 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
  6. 6.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) tiny paper bits (b) vinegar (c) a balloon (d) a plastic comb
  7. 7.True or false: a pebble does not move to a charged comb. (a) True (b) False
  8. 8.⚡ 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
  9. 9.⚡ A rubbed comb is held near dry hair. What happens? (a) jumps to the comb (b) does not move
  10. 10.🛟 There is lightning outside. Where is it safest to be? (a) in an open field (b) on a rooftop (c) indoors (d) under a tall tree
  11. 11.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? What do we do with “the paper bit size”? (a) we change it (b) we measure it (c) we keep it the same
  12. 12.⚖️ 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 hair (d) the same comb
  13. 13.⚡ A rubbed comb is held near a brick. What happens? (a) jumps to the comb (b) does not move
  14. 14.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? Which of these is what we measure? (a) paper bits picked up (b) distance to the paper (c) the same hair (d) the same comb
  15. 15.🧺 Do we need a plastic comb for the static comb? (a) needed (b) not needed
  16. 16.⚡ Which of these jumps to a charged comb? (a) a brick (b) a pebble (c) a steel spoon (d) dry hair
  17. 17.🧺 Which of these is not needed for the static comb? (a) a plastic comb (b) yeast (c) tiny paper bits (d) dry hair
  18. 18.⚖️ 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
  19. 19.🔍 Which is the odd one out? (a) a steel spoon (b) puffed rice (c) tiny paper bits (d) dry hair
  20. 20.🧺 Which of these is not needed for the static comb? (a) turmeric powder (b) a balloon (c) dry hair (d) a plastic comb
  21. 21.⚖️ 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
  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 falls straight down (c) it bursts at once (d) it turns into water
  23. 23.🧺 Do we need vinegar for the static comb? (a) not needed (b) needed
  24. 24.True or false: dry hair does not move to a charged comb. (a) True (b) False
  25. 25.True or false: tiny paper bits is not needed for the static comb. (a) False (b) True
  26. 26.🧺 Which of these is needed for the static comb? (a) a battery cell (b) turmeric powder (c) vinegar (d) a plastic comb
  27. 27.True or false: tiny paper bits is needed for the static comb. (a) False (b) True
  28. 28.True or false: a heavy book does not move to a charged comb. (a) False (b) True
  29. 29.True or false: puffed rice does not move to a charged comb. (a) True (b) False
  30. 30.⚡ Which of these does not move to a charged comb? (a) thermocol bits (b) a steel spoon (c) tiny paper bits (d) a thin water stream
  31. 31.🔍 Which is the odd one out? (a) a heavy book (b) a steel spoon (c) thermocol bits (d) a pebble
  32. 32.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) tiny paper bits (b) a balloon (c) a plastic comb (d) a battery cell
  33. 33.True or false: a magnet is needed for the static comb. (a) True (b) False
  34. 34.True or false: tiny paper bits jumps to a charged comb. (a) False (b) True
  35. 35.🧺 Do we need a magnet for the static comb? (a) not needed (b) needed
  36. 36.True or false: dry hair is not needed for the static comb. (a) True (b) False
  37. 37.⚖️ 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) True (b) False
  38. 38.🧺 Which of these is not needed for the static comb? (a) a plastic comb (b) a mirror (c) a balloon (d) dry hair
  39. 39.🧺 Which of these is not needed for the static comb? (a) tiny paper bits (b) a balloon (c) a magnet (d) a plastic comb
  40. 40.True or false: turmeric powder is needed for the static comb. (a) True (b) False

Answer key

  1. tiny paper bits
  2. not needed
  3. the bits jump to it
  4. a brick
  5. a mirror
  6. vinegar
  7. True
  8. damp air leaks charge
  9. jumps to the comb
  10. indoors
  11. we keep it the same
  12. number of rubs
  13. does not move
  14. paper bits picked up
  15. needed
  16. dry hair
  17. yeast
  18. we measure it
  19. a steel spoon
  20. turmeric powder
  21. False
  22. it sticks for a while
  23. not needed
  24. False
  25. False
  26. a plastic comb
  27. True
  28. True
  29. False
  30. a steel spoon
  31. thermocol bits
  32. a battery cell
  33. False
  34. True
  35. not needed
  36. False
  37. False
  38. a mirror
  39. a magnet
  40. False

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