← Static electricity: comb and paper bits lesson New set →

Static Electricity Experiment Worksheet

Science experiments lesson 21: Static electricity: comb and paper bits · Set 209 · 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.

NameDateTime takenScore ___ / 40
  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.True or false: a brick jumps to a charged comb. (a) True (b) False
  3. 3.⚖️ 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) False (b) True
  4. 4.True or false: a battery cell is needed for the static comb. (a) False (b) True
  5. 5.🧺 Which of these is needed for the static comb? (a) tiny paper bits (b) yeast (c) a battery cell (d) a magnet
  6. 6.⚖️ 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) False (b) True
  7. 7.⚡ Why does the comb trick work best on a dry day? (a) dry days are noisy (b) water adds charge (c) wet hair is magnetic (d) damp air leaks charge
  8. 8.True or false: dry hair is not needed for the static comb. (a) False (b) True
  9. 9.🧺 Do we need a battery cell for the static comb? (a) not needed (b) needed
  10. 10.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) tiny paper bits (b) dry hair (c) turmeric powder (d) a plastic comb
  11. 11.⚡ You comb dry hair and hold the comb near tiny paper bits. What happens? (a) nothing happens (b) the bits jump to it (c) they turn blue (d) they turn wet
  12. 12.🔮 Predict: you wet the comb before trying again. What happens? (a) it works better (b) it hardly works (c) it becomes a magnet (d) it lights up
  13. 13.⚡ A rubbed comb is held near thermocol bits. What happens? (a) jumps to the comb (b) does not move
  14. 14.True or false: a magnet is needed for the static comb. (a) True (b) False
  15. 15.🔍 Which is the odd one out? (a) a heavy book (b) puffed rice (c) a thin water stream (d) tiny paper bits
  16. 16.🧺 Do we need a plastic comb for the static comb? (a) not needed (b) needed
  17. 17.🛟 There is lightning outside. Where is it safest to be? (a) indoors (b) under a tall tree (c) on a rooftop (d) in an open field
  18. 18.🧺 Which of these is needed for the static comb? (a) a mirror (b) dry hair (c) vinegar (d) a battery cell
  19. 19.⚡ Which of these does not move to a charged comb? (a) a pebble (b) tiny paper bits (c) dry hair (d) thermocol bits
  20. 20.🔍 Which is the odd one out? (a) tiny paper bits (b) thermocol bits (c) a pebble (d) a thin water stream
  21. 21.🔮 Predict: you rub a balloon on dry hair and hold it on a wall. What happens? (a) it sticks for a while (b) it turns into water (c) it falls straight down (d) it bursts at once
  22. 22.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? What do we do with “distance to the paper”? (a) we measure it (b) we keep it the same (c) we change it
  23. 23.⚖️ 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
  24. 24.True or false: a steel spoon jumps to a charged comb. (a) True (b) False
  25. 25.True or false: a mirror is needed for the static comb. (a) False (b) True
  26. 26.🧺 Which of these is needed for the static comb? (a) vinegar (b) turmeric powder (c) a mirror (d) a balloon
  27. 27.🧺 Which of these is not needed for the static comb? (a) a plastic comb (b) a balloon (c) a magnet (d) dry hair
  28. 28.True or false: a balloon is not needed for the static comb. (a) True (b) False
  29. 29.⚡ A rubbed comb is held near a steel spoon. What happens? (a) jumps to the comb (b) does not move
  30. 30.⚡ Which of these does not move to a charged comb? (a) puffed rice (b) a thin water stream (c) a heavy book (d) tiny paper bits
  31. 31.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) dry hair (b) a balloon (c) a magnet (d) tiny paper bits
  32. 32.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? True or false: paper bits picked up is kept the same. (a) True (b) False
  33. 33.⚡ Which of these jumps to a charged comb? (a) tiny paper bits (b) a brick (c) a heavy book (d) a pebble
  34. 34.🧺 Do we need yeast for the static comb? (a) needed (b) not needed
  35. 35.🧺 Do we need turmeric powder for the static comb? (a) needed (b) not needed
  36. 36.⚖️ 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) False (b) True
  37. 37.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? What do we do with “number of rubs”? (a) we change it (b) we measure it (c) we keep it the same
  38. 38.🔍 Which is the odd one out? (a) a heavy book (b) a thin water stream (c) a steel spoon (d) a brick
  39. 39.True or false: a thin water stream jumps to a charged comb. (a) True (b) False
  40. 40.True or false: yeast is needed for the static comb. (a) False (b) True

Answer key

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

Free science experiments lessons, practice and worksheets at talentjr.in/science-experiments-for-kids