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Static Electricity Experiment Worksheet

Science experiments lesson 21: Static electricity: comb and paper bits · Set 487 · 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) a magnet (b) dry hair (c) turmeric powder (d) yeast
  2. 2.⚖️ 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
  3. 3.🔍 Which is the odd one out? (a) tiny paper bits (b) a brick (c) thermocol bits (d) a thin water stream
  4. 4.True or false: tiny paper bits is not needed for the static comb. (a) False (b) True
  5. 5.🧺 Do we need a plastic comb for the static comb? (a) needed (b) not needed
  6. 6.🛟 Static from a comb is safe. Which electricity must children never play with? (a) a rubbed balloon (b) plug points at home (c) a rubbed plastic comb (d) paper bits on a comb
  7. 7.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? Which of these is what we measure? (a) the same hair (b) the same comb (c) paper bits picked up (d) number of rubs
  8. 8.True or false: puffed rice jumps to a charged comb. (a) False (b) True
  9. 9.🧺 Which of these is not needed for the static comb? (a) dry hair (b) a balloon (c) yeast (d) tiny paper bits
  10. 10.🔮 Predict: you rub a balloon on dry hair and hold it on a wall. What happens? (a) it bursts at once (b) it falls straight down (c) it turns into water (d) it sticks for a while
  11. 11.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) dry hair (b) turmeric powder (c) tiny paper bits (d) a plastic comb
  12. 12.⚡ Which of these does not move to a charged comb? (a) a steel spoon (b) dry hair (c) puffed rice (d) tiny paper bits
  13. 13.🧺 Which of these is needed for the static comb? (a) a magnet (b) a battery cell (c) yeast (d) a balloon
  14. 14.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? True or false: the same comb is what we measure. (a) True (b) False
  15. 15.⚖️ 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) the same hair (c) paper bits picked up
  16. 16.🧺 Which of these is not needed for the static comb? (a) dry hair (b) tiny paper bits (c) a plastic comb (d) a mirror
  17. 17.⚖️ 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
  18. 18.⚡ A rubbed comb is held near a heavy book. What happens? (a) does not move (b) jumps to the comb
  19. 19.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) tiny paper bits (b) a plastic comb (c) a mirror (d) a balloon
  20. 20.🔮 Predict: you wet the comb before trying again. What happens? (a) it hardly works (b) it works better (c) it becomes a magnet (d) it lights up
  21. 21.True or false: a plastic comb is not needed for the static comb. (a) True (b) False
  22. 22.🧺 Do we need turmeric powder for the static comb? (a) not needed (b) needed
  23. 23.⚖️ 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 keep it the same (c) we measure it
  24. 24.🛟 There is lightning outside. Where is it safest to be? (a) in an open field (b) indoors (c) on a rooftop (d) under a tall tree
  25. 25.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? What do we do with “paper bits picked up”? (a) we keep it the same (b) we measure it (c) we change it
  26. 26.🧺 Which of these is needed for the static comb? (a) a battery cell (b) yeast (c) a plastic comb (d) turmeric powder
  27. 27.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? What do we do with “the same comb”? (a) we measure it (b) we change it (c) we keep it the same
  28. 28.⚡ A rubbed comb is held near tiny paper bits. What happens? (a) jumps to the comb (b) does not move
  29. 29.⚡ Which of these does not move to a charged comb? (a) puffed rice (b) dry hair (c) a brick (d) a thin water stream
  30. 30.⚡ Which of these does not move to a charged comb? (a) puffed rice (b) a heavy book (c) a thin water stream (d) tiny paper bits
  31. 31.⚖️ 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) the paper bit size (c) number of rubs (d) paper bits picked up
  32. 32.⚡ A rubbed comb is held near puffed rice. What happens? (a) does not move (b) jumps to the comb
  33. 33.⚡ A rubbed comb is held near a brick. What happens? (a) does not move (b) jumps to the comb
  34. 34.🔮 Predict: a charged comb is held near a thin stream of tap water. What happens? (a) the water freezes (b) nothing at all (c) the stream bends (d) the water stops
  35. 35.🧺 Which of these is not needed for the static comb? (a) tiny paper bits (b) turmeric powder (c) a plastic comb (d) a balloon
  36. 36.⚡ You comb dry hair and hold the comb near tiny paper bits. What happens? (a) they turn wet (b) the bits jump to it (c) they turn blue (d) nothing happens
  37. 37.True or false: a battery cell is not needed for the static comb. (a) False (b) True
  38. 38.⚡ Which of these jumps to a charged comb? (a) tiny paper bits (b) a pebble (c) a steel spoon (d) a brick
  39. 39.🔍 Which is the odd one out? (a) puffed rice (b) thermocol bits (c) a heavy book (d) a thin water stream
  40. 40.🧺 Do we need tiny paper bits for the static comb? (a) not needed (b) needed

Answer key

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

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