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Static Electricity Experiment Worksheet

Science experiments lesson 21: Static electricity: comb and paper bits · Set 190 · 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 not needed for the static comb? (a) vinegar (b) dry hair (c) a plastic comb (d) a balloon
  2. 2.🧺 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) turmeric powder
  3. 3.⚖️ 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
  4. 4.⚖️ 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
  5. 5.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? What do we do with “the same hair”? (a) we measure it (b) we keep it the same (c) we change it
  6. 6.🔍 Which is the odd one out? (a) a heavy book (b) a thin water stream (c) a brick (d) a steel spoon
  7. 7.🛟 Static from a comb is safe. Which electricity must children never play with? (a) paper bits on a comb (b) plug points at home (c) a rubbed balloon (d) a rubbed plastic comb
  8. 8.⚖️ 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 hair (b) paper bits picked up (c) number of rubs (d) the same comb
  9. 9.⚡ A rubbed comb is held near dry hair. What happens? (a) does not move (b) jumps to the comb
  10. 10.⚡ Which of these jumps to a charged comb? (a) thermocol bits (b) a steel spoon (c) a heavy book (d) a pebble
  11. 11.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? What do we do with “paper bits picked up”? (a) we measure it (b) we change it (c) we keep it the same
  12. 12.⚖️ 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
  13. 13.🔮 Predict: a charged comb is held near a thin stream of tap water. What happens? (a) the water stops (b) nothing at all (c) the stream bends (d) the water freezes
  14. 14.⚖️ 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) the same comb
  15. 15.⚡ Which of these does not move to a charged comb? (a) puffed rice (b) a pebble (c) thermocol bits (d) a thin water stream
  16. 16.🧺 Do we need dry hair for the static comb? (a) needed (b) not needed
  17. 17.⚖️ 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
  18. 18.⚡ 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
  19. 19.⚡ Why does the comb trick work best on a dry day? (a) dry days are noisy (b) damp air leaks charge (c) water adds charge (d) wet hair is magnetic
  20. 20.🧺 Do we need a magnet for the static comb? (a) needed (b) not needed
  21. 21.True or false: tiny paper bits is not needed for the static comb. (a) False (b) True
  22. 22.🔮 Predict: you rub a balloon on dry hair and hold it on a wall. What happens? (a) it bursts at once (b) it turns into water (c) it sticks for a while (d) it falls straight down
  23. 23.True or false: dry hair is not needed for the static comb. (a) False (b) True
  24. 24.⚖️ 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
  25. 25.True or false: dry hair is needed for the static comb. (a) True (b) False
  26. 26.True or false: a brick does not move to a charged comb. (a) True (b) False
  27. 27.⚡ A rubbed comb is held near a steel spoon. What happens? (a) does not move (b) jumps to the comb
  28. 28.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) a plastic comb (b) tiny paper bits (c) a battery cell (d) a balloon
  29. 29.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? What do we do with “distance to the paper”? (a) we keep it the same (b) we change it (c) we measure it
  30. 30.True or false: a magnet is needed for the static comb. (a) True (b) False
  31. 31.🧺 Do we need a balloon for the static comb? (a) needed (b) not needed
  32. 32.🔍 Which is the odd one out? (a) a brick (b) thermocol bits (c) a heavy book (d) a pebble
  33. 33.🧺 Do we need vinegar for the static comb? (a) needed (b) not needed
  34. 34.⚡ Which of these jumps to a charged comb? (a) a heavy book (b) a steel spoon (c) dry hair (d) a pebble
  35. 35.🔍 Which is the odd one out? (a) a pebble (b) a heavy book (c) a brick (d) puffed rice
  36. 36.True or false: thermocol bits jumps to a charged comb. (a) False (b) True
  37. 37.🧺 Do we need turmeric powder for the static comb? (a) needed (b) not needed
  38. 38.⚡ Which big natural spark is caused by static electricity? (a) dew (b) the wind (c) lightning (d) a rainbow
  39. 39.⚖️ 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
  40. 40.⚡ A rubbed comb is held near a heavy book. What happens? (a) jumps to the comb (b) does not move

Answer key

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

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