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Static Electricity Experiment Worksheet

Science experiments lesson 21: Static electricity: comb and paper bits · Set 365 · 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 does not move to a charged comb? (a) tiny paper bits (b) dry hair (c) thermocol bits (d) a brick
  2. 2.True or false: a magnet is not needed for the static comb. (a) True (b) False
  3. 3.⚡ You comb dry hair and hold the comb near tiny paper bits. What happens? (a) nothing happens (b) they turn blue (c) they turn wet (d) the bits jump to it
  4. 4.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) tiny paper bits (b) dry hair (c) yeast (d) a plastic comb
  5. 5.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) dry hair (b) tiny paper bits (c) a balloon (d) a magnet
  6. 6.True or false: a plastic comb is not needed for the static comb. (a) True (b) False
  7. 7.⚡ Which of these does not move to a charged comb? (a) tiny paper bits (b) a thin water stream (c) dry hair (d) a heavy book
  8. 8.🔮 Predict: you wet the comb before trying again. What happens? (a) it works better (b) it hardly works (c) it lights up (d) it becomes a magnet
  9. 9.🧺 Do we need a mirror for the static comb? (a) not needed (b) needed
  10. 10.True or false: a thin water stream jumps to a charged comb. (a) True (b) False
  11. 11.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? True or false: distance to the paper is kept the same. (a) True (b) False
  12. 12.⚡ A rubbed comb is held near a thin water stream. What happens? (a) jumps to the comb (b) does not move
  13. 13.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) a balloon (b) a plastic comb (c) a mirror (d) tiny paper bits
  14. 14.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? True or false: number of rubs is what we measure. (a) True (b) False
  15. 15.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? What do we do with “the same hair”? (a) we change it (b) we keep it the same (c) we measure it
  16. 16.🔍 Which is the odd one out? (a) puffed rice (b) a steel spoon (c) a brick (d) a pebble
  17. 17.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? Which of these is the one thing we change? (a) the same comb (b) distance to the paper (c) number of rubs (d) the same hair
  18. 18.⚡ Which of these jumps to a charged comb? (a) a pebble (b) puffed rice (c) a brick (d) a steel spoon
  19. 19.True or false: a thin water stream does not move to a charged comb. (a) False (b) True
  20. 20.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? True or false: distance to the paper is what we measure. (a) True (b) False
  21. 21.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) a plastic comb (b) a balloon (c) vinegar (d) tiny paper bits
  22. 22.🧺 Do we need yeast for the static comb? (a) not needed (b) needed
  23. 23.🛟 There is lightning outside. Where is it safest to be? (a) under a tall tree (b) indoors (c) on a rooftop (d) in an open field
  24. 24.⚡ Which of these does not move to a charged comb? (a) dry hair (b) puffed rice (c) a pebble (d) tiny paper bits
  25. 25.True or false: a brick jumps to a charged comb. (a) False (b) True
  26. 26.🧺 Do we need dry hair for the static comb? (a) not needed (b) needed
  27. 27.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? Which of these is kept the same? (a) number of rubs (b) paper bits picked up (c) the same hair
  28. 28.⚖️ 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
  29. 29.⚖️ 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 same comb (c) the paper bit size (d) distance to the paper
  30. 30.📘 Rubbing moves tiny charges. What do we call the charge that builds up? (a) magnetism (b) gravity (c) sunlight (d) static electricity
  31. 31.True or false: a mirror is not needed for the static comb. (a) False (b) True
  32. 32.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? True or false: the same comb is kept the same. (a) False (b) True
  33. 33.⚡ A rubbed comb is held near puffed rice. What happens? (a) does not move (b) jumps to the comb
  34. 34.True or false: a steel spoon does not move to a charged comb. (a) True (b) False
  35. 35.🛟 Static from a comb is safe. Which electricity must children never play with? (a) plug points at home (b) a rubbed balloon (c) a rubbed plastic comb (d) paper bits on a comb
  36. 36.⚖️ 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 measure it (c) we keep it the same
  37. 37.⚡ A rubbed comb is held near thermocol bits. What happens? (a) does not move (b) jumps to the comb
  38. 38.⚡ Which of these jumps to a charged comb? (a) a heavy book (b) a brick (c) a steel spoon (d) thermocol bits
  39. 39.True or false: a steel spoon jumps to a charged comb. (a) False (b) True
  40. 40.🔍 Which is the odd one out? (a) dry hair (b) puffed rice (c) a thin water stream (d) a heavy book

Answer key

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

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