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

Static Electricity Experiment Worksheet

Science experiments lesson 21: Static electricity: comb and paper bits · Set 644 · 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.⚖️ 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) number of rubs (c) paper bits picked up (d) distance to the paper
  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) a battery cell (d) a balloon
  3. 3.True or false: a pebble does not move to a charged comb. (a) True (b) False
  4. 4.🔮 Predict: you wet the comb before trying again. What happens? (a) it lights up (b) it hardly works (c) it works better (d) it becomes a magnet
  5. 5.⚡ A rubbed comb is held near a pebble. What happens? (a) jumps to the comb (b) does not move
  6. 6.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? What do we do with “number of rubs”? (a) we measure it (b) we keep it the same (c) we change it
  7. 7.🔍 Which is the odd one out? (a) tiny paper bits (b) a brick (c) thermocol bits (d) a thin water stream
  8. 8.True or false: puffed rice jumps to a charged comb. (a) True (b) False
  9. 9.⚡ Which of these jumps to a charged comb? (a) dry hair (b) a pebble (c) a brick (d) a heavy book
  10. 10.🛟 Static from a comb is safe. Which electricity must children never play with? (a) paper bits on a comb (b) a rubbed plastic comb (c) plug points at home (d) a rubbed balloon
  11. 11.⚡ Which of these does not move to a charged comb? (a) puffed rice (b) dry hair (c) a steel spoon (d) a thin water stream
  12. 12.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) yeast (b) dry hair (c) a plastic comb (d) tiny paper bits
  13. 13.True or false: a pebble jumps to a charged comb. (a) False (b) True
  14. 14.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? True or false: the same hair is kept the same. (a) False (b) True
  15. 15.🧺 Which of these is not needed for the static comb? (a) dry hair (b) a plastic comb (c) vinegar (d) a balloon
  16. 16.🧺 Do we need a battery cell for the static comb? (a) needed (b) not needed
  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 keep it the same (b) we measure it (c) we change it
  18. 18.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? True or false: the same comb is kept the same. (a) False (b) True
  19. 19.⚡ You comb dry hair and hold the comb near tiny paper bits. What happens? (a) they turn wet (b) nothing happens (c) they turn blue (d) the bits jump to it
  20. 20.🧺 Do we need tiny paper bits for the static comb? (a) not needed (b) needed
  21. 21.⚡ Why does the comb trick work best on a dry day? (a) dry days are noisy (b) wet hair is magnetic (c) damp air leaks charge (d) water adds charge
  22. 22.True or false: a balloon is not needed for the static comb. (a) True (b) False
  23. 23.True or false: a thin water stream does not move to a charged comb. (a) False (b) True
  24. 24.True or false: a thin water stream jumps to a charged comb. (a) True (b) False
  25. 25.📘 Rubbing moves tiny charges. What do we call the charge that builds up? (a) magnetism (b) gravity (c) sunlight (d) static electricity
  26. 26.🧺 Do we need dry hair for the static comb? (a) needed (b) not needed
  27. 27.True or false: turmeric powder is not needed for the static comb. (a) False (b) True
  28. 28.🧺 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
  29. 29.🧺 Do we need yeast for the static comb? (a) needed (b) not needed
  30. 30.⚖️ 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) True (b) False
  31. 31.🧺 Do we need a mirror for the static comb? (a) needed (b) not needed
  32. 32.True or false: a magnet is needed for the static comb. (a) False (b) True
  33. 33.🔮 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
  34. 34.True or false: dry hair is not needed for the static comb. (a) False (b) True
  35. 35.🧺 Do we need a magnet for the static comb? (a) needed (b) not needed
  36. 36.⚡ A rubbed comb is held near puffed rice. What happens? (a) jumps to the comb (b) does not move
  37. 37.⚡ Which of these does not move to a charged comb? (a) puffed rice (b) a brick (c) thermocol bits (d) tiny paper bits
  38. 38.⚖️ 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 change it (c) we measure it
  39. 39.🔍 Which is the odd one out? (a) tiny paper bits (b) puffed rice (c) a steel spoon (d) dry hair
  40. 40.🧺 Do we need turmeric powder for the static comb? (a) needed (b) not needed

Answer key

  1. number of rubs
  2. a battery cell
  3. True
  4. it hardly works
  5. does not move
  6. we change it
  7. a brick
  8. True
  9. dry hair
  10. plug points at home
  11. a steel spoon
  12. yeast
  13. False
  14. True
  15. vinegar
  16. not needed
  17. we keep it the same
  18. True
  19. the bits jump to it
  20. needed
  21. damp air leaks charge
  22. False
  23. False
  24. True
  25. static electricity
  26. needed
  27. True
  28. turmeric powder
  29. not needed
  30. True
  31. not needed
  32. False
  33. the stream bends
  34. False
  35. not needed
  36. jumps to the comb
  37. a brick
  38. we measure it
  39. a steel spoon
  40. not needed

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