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Static Electricity Experiment Worksheet

Science experiments lesson 21: Static electricity: comb and paper bits · Set 359 · 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.🛟 Static from a comb is safe. Which electricity must children never play with? (a) a rubbed plastic comb (b) a rubbed balloon (c) plug points at home (d) paper bits on a comb
  2. 2.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) dry hair (b) tiny paper bits (c) yeast (d) a plastic comb
  3. 3.⚡ Which of these does not move to a charged comb? (a) dry hair (b) a pebble (c) thermocol bits (d) tiny paper bits
  4. 4.⚡ 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
  5. 5.True or false: a balloon is not needed for the static comb. (a) True (b) False
  6. 6.🔍 Which is the odd one out? (a) tiny paper bits (b) a heavy book (c) thermocol bits (d) dry hair
  7. 7.True or false: a magnet is not needed for the static comb. (a) False (b) True
  8. 8.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? True or false: the same hair is kept the same. (a) True (b) False
  9. 9.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) a plastic comb (b) vinegar (c) dry hair (d) a balloon
  10. 10.True or false: turmeric powder is needed for the static comb. (a) True (b) False
  11. 11.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? True or false: number of rubs is the one thing we change. (a) False (b) True
  12. 12.🔮 Predict: you rub a balloon on dry hair and hold it on a wall. What happens? (a) it falls straight down (b) it turns into water (c) it bursts at once (d) it sticks for a while
  13. 13.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? Which of these is what we measure? (a) distance to the paper (b) paper bits picked up (c) the same comb (d) the paper bit size
  14. 14.⚡ Why does the comb trick work best on a dry day? (a) damp air leaks charge (b) water adds charge (c) dry days are noisy (d) wet hair is magnetic
  15. 15.🧺 Which of these is needed for the static comb? (a) tiny paper bits (b) yeast (c) vinegar (d) a battery cell
  16. 16.📘 Rubbing moves tiny charges. What do we call the charge that builds up? (a) sunlight (b) static electricity (c) gravity (d) magnetism
  17. 17.🧺 Do we need vinegar for the static comb? (a) needed (b) not needed
  18. 18.True or false: a battery cell is needed for the static comb. (a) True (b) False
  19. 19.⚡ Which big natural spark is caused by static electricity? (a) dew (b) the wind (c) a rainbow (d) lightning
  20. 20.🧺 Which of these is needed for the static comb? (a) a mirror (b) dry hair (c) vinegar (d) yeast
  21. 21.True or false: a brick does not move to a charged comb. (a) True (b) False
  22. 22.🧺 Do we need tiny paper bits for the static comb? (a) needed (b) not needed
  23. 23.⚡ A rubbed comb is held near a steel spoon. What happens? (a) jumps to the comb (b) does not move
  24. 24.⚡ A rubbed comb is held near a brick. What happens? (a) does not move (b) jumps to the comb
  25. 25.🧺 Do we need yeast for the static comb? (a) not needed (b) needed
  26. 26.⚡ A rubbed comb is held near a pebble. What happens? (a) jumps to the comb (b) does not move
  27. 27.⚖️ 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
  28. 28.True or false: puffed rice does not move to a charged comb. (a) True (b) False
  29. 29.🧺 Do we need dry hair for the static comb? (a) not needed (b) needed
  30. 30.⚖️ 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) the same hair (c) number of rubs (d) paper bits picked up
  31. 31.🛟 There is lightning outside. Where is it safest to be? (a) indoors (b) in an open field (c) on a rooftop (d) under a tall tree
  32. 32.⚖️ 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
  33. 33.🧺 Which of these is needed for the static comb? (a) turmeric powder (b) a plastic comb (c) a battery cell (d) a mirror
  34. 34.⚖️ 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) True (b) False
  35. 35.⚡ Which of these jumps to a charged comb? (a) a steel spoon (b) a pebble (c) a brick (d) tiny paper bits
  36. 36.⚡ A rubbed comb is held near a thin water stream. What happens? (a) jumps to the comb (b) does not move
  37. 37.🧺 Which of these is not needed for the static comb? (a) a balloon (b) tiny paper bits (c) a plastic comb (d) a mirror
  38. 38.⚡ A rubbed comb is held near tiny paper bits. What happens? (a) jumps to the comb (b) does not move
  39. 39.True or false: yeast is not needed for the static comb. (a) False (b) True
  40. 40.🧺 Which of these is not needed for the static comb? (a) dry hair (b) a battery cell (c) tiny paper bits (d) a balloon

Answer key

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

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