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Static Electricity Experiment Worksheet

Science experiments lesson 21: Static electricity: comb and paper bits · Set 490 · 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.🔮 Predict: you wet the comb before trying again. What happens? (a) it works better (b) it becomes a magnet (c) it lights up (d) it hardly works
  2. 2.🧺 Do we need tiny paper bits for the static comb? (a) needed (b) not needed
  3. 3.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) a balloon (b) vinegar (c) tiny paper bits (d) a plastic comb
  4. 4.🔍 Which is the odd one out? (a) a brick (b) tiny paper bits (c) a pebble (d) a heavy book
  5. 5.🔍 Which is the odd one out? (a) a thin water stream (b) a brick (c) dry hair (d) thermocol bits
  6. 6.🛟 Static from a comb is safe. Which electricity must children never play with? (a) plug points at home (b) a rubbed balloon (c) paper bits on a comb (d) a rubbed plastic comb
  7. 7.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? Which of these is kept the same? (a) the same hair (b) number of rubs (c) paper bits picked up
  8. 8.🔍 Which is the odd one out? (a) thermocol bits (b) tiny paper bits (c) dry hair (d) a pebble
  9. 9.🔍 Which is the odd one out? (a) puffed rice (b) tiny paper bits (c) dry hair (d) a heavy book
  10. 10.⚡ You comb dry hair and hold the comb near tiny paper bits. What happens? (a) nothing happens (b) they turn wet (c) the bits jump to it (d) they turn blue
  11. 11.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? What do we do with “the same hair”? (a) we keep it the same (b) we measure it (c) we change it
  12. 12.🧺 Do we need a battery cell for the static comb? (a) needed (b) not needed
  13. 13.🧺 Which of these is not needed for the static comb? (a) a balloon (b) tiny paper bits (c) dry hair (d) yeast
  14. 14.🔍 Which is the odd one out? (a) dry hair (b) a brick (c) a heavy book (d) a pebble
  15. 15.📘 Rubbing moves tiny charges. What do we call the charge that builds up? (a) static electricity (b) magnetism (c) gravity (d) sunlight
  16. 16.True or false: a magnet is not needed for the static comb. (a) False (b) True
  17. 17.True or false: tiny paper bits jumps to a charged comb. (a) False (b) True
  18. 18.True or false: a steel spoon jumps to a charged comb. (a) False (b) True
  19. 19.🛟 There is lightning outside. Where is it safest to be? (a) indoors (b) on a rooftop (c) in an open field (d) under a tall tree
  20. 20.⚖️ 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) the paper bit size (c) number of rubs (d) the same hair
  21. 21.⚡ A rubbed comb is held near a brick. What happens? (a) jumps to the comb (b) does not move
  22. 22.🧺 Do we need dry hair for the static comb? (a) not needed (b) needed
  23. 23.🧺 Which of these is needed for the static comb? (a) a battery cell (b) tiny paper bits (c) a magnet (d) a mirror
  24. 24.⚡ A rubbed comb is held near a steel spoon. What happens? (a) does not move (b) jumps to the comb
  25. 25.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) a plastic comb (b) a battery cell (c) tiny paper bits (d) a balloon
  26. 26.True or false: a pebble jumps to a charged comb. (a) False (b) True
  27. 27.⚖️ 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) False (b) True
  28. 28.⚡ Which of these jumps to a charged comb? (a) a heavy book (b) a steel spoon (c) thermocol bits (d) a pebble
  29. 29.⚡ Why does the comb trick work best on a dry day? (a) dry days are noisy (b) wet hair is magnetic (c) water adds charge (d) damp air leaks charge
  30. 30.🧺 Which of these is not needed for the static comb? (a) dry hair (b) a plastic comb (c) turmeric powder (d) a balloon
  31. 31.⚡ Which of these does not move to a charged comb? (a) thermocol bits (b) a thin water stream (c) dry hair (d) a pebble
  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.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? True or false: the paper bit size is what we measure. (a) True (b) False
  34. 34.True or false: a steel spoon does not move to a charged comb. (a) True (b) False
  35. 35.⚡ A rubbed comb is held near a thin water stream. What happens? (a) jumps to the comb (b) does not move
  36. 36.True or false: a thin water stream jumps to a charged comb. (a) True (b) False
  37. 37.True or false: a plastic comb is not needed for the static comb. (a) False (b) True
  38. 38.True or false: tiny paper bits does not move to a charged comb. (a) False (b) True
  39. 39.🧺 Which of these is not needed for the static comb? (a) dry hair (b) a balloon (c) tiny paper bits (d) a magnet
  40. 40.🔍 Which is the odd one out? (a) a pebble (b) puffed rice (c) a heavy book (d) a steel spoon

Answer key

  1. it hardly works
  2. needed
  3. vinegar
  4. tiny paper bits
  5. a brick
  6. plug points at home
  7. the same hair
  8. a pebble
  9. a heavy book
  10. the bits jump to it
  11. we keep it the same
  12. not needed
  13. yeast
  14. dry hair
  15. static electricity
  16. True
  17. True
  18. False
  19. indoors
  20. paper bits picked up
  21. does not move
  22. needed
  23. tiny paper bits
  24. does not move
  25. a battery cell
  26. False
  27. False
  28. thermocol bits
  29. damp air leaks charge
  30. turmeric powder
  31. a pebble
  32. False
  33. False
  34. True
  35. jumps to the comb
  36. True
  37. False
  38. False
  39. a magnet
  40. puffed rice

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