Static Electricity Experiment Worksheet

Science experiments lesson 21: Static electricity: comb and paper bits · Set 997 · 40 questions

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.

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

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