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Static Electricity Experiment Worksheet

Science experiments lesson 21: Static electricity: comb and paper bits · Set 143 · 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.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) a mirror (b) a plastic comb (c) dry hair (d) tiny paper bits
  2. 2.🔮 Predict: you wet the comb before trying again. What happens? (a) it hardly works (b) it lights up (c) it works better (d) it becomes a magnet
  3. 3.⚡ Which of these jumps to a charged comb? (a) a pebble (b) thermocol bits (c) a heavy book (d) a brick
  4. 4.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) dry hair (b) a balloon (c) yeast (d) a plastic comb
  5. 5.True or false: vinegar is not needed for the static comb. (a) True (b) False
  6. 6.🔍 Which is the odd one out? (a) a heavy book (b) a brick (c) a pebble (d) a thin water stream
  7. 7.⚡ Which of these does not move to a charged comb? (a) thermocol bits (b) a steel spoon (c) puffed rice (d) dry hair
  8. 8.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? True or false: the paper bit size is kept the same. (a) False (b) True
  9. 9.🧺 Do we need a battery cell for the static comb? (a) needed (b) not needed
  10. 10.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? Which of these is kept the same? (a) paper bits picked up (b) the same comb (c) number of rubs
  11. 11.⚡ Which of these does not move to a charged comb? (a) thermocol bits (b) puffed rice (c) tiny paper bits (d) a pebble
  12. 12.🛟 There is lightning outside. Where is it safest to be? (a) indoors (b) under a tall tree (c) on a rooftop (d) in an open field
  13. 13.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? Which of these is what we measure? (a) number of rubs (b) paper bits picked up (c) the same comb (d) distance to the paper
  14. 14.⚡ Which of these jumps to a charged comb? (a) a heavy book (b) dry hair (c) a steel spoon (d) a pebble
  15. 15.True or false: a plastic comb is not needed for the static comb. (a) False (b) True
  16. 16.True or false: a magnet is not needed for the static comb. (a) True (b) False
  17. 17.True or false: a mirror is needed for the static comb. (a) False (b) True
  18. 18.True or false: a battery cell is not needed for the static comb. (a) True (b) False
  19. 19.⚡ A rubbed comb is held near tiny paper bits. What happens? (a) jumps to the comb (b) does not move
  20. 20.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) tiny paper bits (b) turmeric powder (c) dry hair (d) a balloon
  21. 21.True or false: dry hair is needed for the static comb. (a) False (b) True
  22. 22.🔮 Predict: a charged comb is held near a thin stream of tap water. What happens? (a) the water stops (b) the water freezes (c) nothing at all (d) the stream bends
  23. 23.⚖️ 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
  24. 24.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) dry hair (b) a magnet (c) a balloon (d) a plastic comb
  25. 25.🧺 Which of these is not needed for the static comb? (a) dry hair (b) tiny paper bits (c) a balloon (d) vinegar
  26. 26.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? What do we do with “the same comb”? (a) we change it (b) we keep it the same (c) we measure it
  27. 27.⚖️ 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
  28. 28.🧺 Do we need tiny paper bits for the static comb? (a) not needed (b) needed
  29. 29.🧺 Do we need turmeric powder for the static comb? (a) needed (b) not needed
  30. 30.⚖️ 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) True (b) False
  31. 31.⚡ A rubbed comb is held near a pebble. What happens? (a) jumps to the comb (b) does not move
  32. 32.True or false: yeast is needed for the static comb. (a) False (b) True
  33. 33.⚖️ 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
  34. 34.⚡ Which of these jumps to a charged comb? (a) tiny paper bits (b) a heavy book (c) a steel spoon (d) a brick
  35. 35.🔍 Which is the odd one out? (a) a heavy book (b) thermocol bits (c) puffed rice (d) a thin water stream
  36. 36.🔍 Which is the odd one out? (a) a steel spoon (b) puffed rice (c) a pebble (d) a heavy book
  37. 37.⚖️ 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) True (b) False
  38. 38.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? True or false: paper bits picked up is kept the same. (a) False (b) True
  39. 39.🧺 Which of these is needed for the static comb? (a) a battery cell (b) a mirror (c) a plastic comb (d) yeast
  40. 40.🔍 Which is the odd one out? (a) a pebble (b) a steel spoon (c) thermocol bits (d) a heavy book

Answer key

  1. a mirror
  2. it hardly works
  3. thermocol bits
  4. yeast
  5. True
  6. a thin water stream
  7. a steel spoon
  8. True
  9. not needed
  10. the same comb
  11. a pebble
  12. indoors
  13. paper bits picked up
  14. dry hair
  15. False
  16. True
  17. False
  18. True
  19. jumps to the comb
  20. turmeric powder
  21. True
  22. the stream bends
  23. False
  24. a magnet
  25. vinegar
  26. we keep it the same
  27. False
  28. needed
  29. not needed
  30. False
  31. does not move
  32. False
  33. True
  34. tiny paper bits
  35. a heavy book
  36. puffed rice
  37. False
  38. False
  39. a plastic comb
  40. thermocol bits

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