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Static Electricity Experiment Worksheet

Science experiments lesson 21: Static electricity: comb and paper bits · Set 523 · 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) plug points at home (b) a rubbed balloon (c) a rubbed plastic comb (d) paper bits on a comb
  2. 2.🔮 Predict: a charged comb is held near a thin stream of tap water. What happens? (a) the water freezes (b) the water stops (c) nothing at all (d) the stream bends
  3. 3.⚡ Why does the rubbed comb pull the paper bits? (a) it is sticky (b) it is hot (c) it is a magnet (d) it has static charge
  4. 4.True or false: tiny paper bits does not move to a charged comb. (a) False (b) True
  5. 5.True or false: vinegar is needed for the static comb. (a) True (b) False
  6. 6.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) dry hair (b) a plastic comb (c) tiny paper bits (d) a mirror
  7. 7.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) a balloon (b) turmeric powder (c) a plastic comb (d) tiny paper bits
  8. 8.⚡ A rubbed comb is held near a brick. What happens? (a) does not move (b) jumps to the comb
  9. 9.True or false: a balloon is needed for the static comb. (a) True (b) False
  10. 10.True or false: a brick jumps to a charged comb. (a) False (b) True
  11. 11.⚡ Why does the comb trick work best on a dry day? (a) water adds charge (b) dry days are noisy (c) damp air leaks charge (d) wet hair is magnetic
  12. 12.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) tiny paper bits (b) a plastic comb (c) dry hair (d) a magnet
  13. 13.True or false: a heavy book does not move to a charged comb. (a) True (b) False
  14. 14.🧺 Which of these is not needed for the static comb? (a) tiny paper bits (b) turmeric powder (c) a plastic comb (d) a balloon
  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 paper bit size (c) paper bits picked up
  16. 16.📘 Rubbing moves tiny charges. What do we call the charge that builds up? (a) magnetism (b) static electricity (c) sunlight (d) gravity
  17. 17.⚖️ 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
  18. 18.🔍 Which is the odd one out? (a) dry hair (b) a pebble (c) a thin water stream (d) thermocol bits
  19. 19.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) a plastic comb (b) tiny paper bits (c) vinegar (d) dry hair
  20. 20.⚡ Which of these jumps to a charged comb? (a) a brick (b) a steel spoon (c) thermocol bits (d) a heavy book
  21. 21.⚖️ 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
  22. 22.True or false: a plastic comb is not needed for the static comb. (a) True (b) False
  23. 23.🔍 Which is the odd one out? (a) a heavy book (b) a brick (c) a thin water stream (d) a pebble
  24. 24.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? Which of these is the one thing we change? (a) the paper bit size (b) distance to the paper (c) paper bits picked up (d) number of rubs
  25. 25.True or false: thermocol bits does not move to a charged comb. (a) False (b) True
  26. 26.🧺 Which of these is needed for the static comb? (a) yeast (b) tiny paper bits (c) vinegar (d) a mirror
  27. 27.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? What do we do with “distance to the paper”? (a) we change it (b) we measure 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.⚡ A rubbed comb is held near dry hair. What happens? (a) jumps to the comb (b) does not move
  30. 30.🧺 Which of these is needed for the static comb? (a) a mirror (b) a battery cell (c) a plastic comb (d) a magnet
  31. 31.🧺 Do we need turmeric powder for the static comb? (a) not needed (b) needed
  32. 32.🛟 There is lightning outside. Where is it safest to be? (a) on a rooftop (b) in an open field (c) indoors (d) under a tall tree
  33. 33.🔍 Which is the odd one out? (a) a pebble (b) a steel spoon (c) dry hair (d) a heavy book
  34. 34.⚖️ 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) number of rubs (c) distance to the paper
  35. 35.🔮 Predict: you rub a balloon on dry hair and hold it on a wall. What happens? (a) it turns into water (b) it falls straight down (c) it sticks for a while (d) it bursts at once
  36. 36.🔍 Which is the odd one out? (a) a thin water stream (b) a heavy book (c) puffed rice (d) tiny paper bits
  37. 37.⚡ Which of these jumps to a charged comb? (a) a steel spoon (b) a pebble (c) a heavy book (d) puffed rice
  38. 38.⚡ You comb dry hair and hold the comb near tiny paper bits. What happens? (a) the bits jump to it (b) they turn blue (c) they turn wet (d) nothing happens
  39. 39.True or false: dry hair jumps to a charged comb. (a) False (b) True
  40. 40.True or false: a balloon is not needed for the static comb. (a) False (b) True

Answer key

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

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