Static Electricity Experiment Worksheet

Science experiments lesson 21: Static electricity: comb and paper bits · Set 145 · 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 rubbed comb pull the paper bits? (a) it is hot (b) it is sticky (c) it is a magnet (d) it has static charge
2. 2.⚖️ 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
3. 3.🧺 Do we need a magnet for the static comb? (a) not needed (b) needed
4. 4.⚡ Which of these does not move to a charged comb? (a) dry hair (b) puffed rice (c) thermocol bits (d) a heavy book
5. 5.🛟 There is lightning outside. Where is it safest to be? (a) under a tall tree (b) indoors (c) in an open field (d) on a rooftop
6. 6.🧺 Which of these is needed for the static comb? (a) vinegar (b) turmeric powder (c) a plastic comb (d) yeast
7. 7.🔍 Which is the odd one out? (a) a pebble (b) thermocol bits (c) a thin water stream (d) tiny paper bits
8. 8.⚖️ 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
9. 9.🧺 Which of these is not needed for the static comb? (a) tiny paper bits (b) a magnet (c) a plastic comb (d) dry hair
10. 10.⚡ Which big natural spark is caused by static electricity? (a) dew (b) lightning (c) a rainbow (d) the wind
11. 11.True or false: yeast is not needed for the static comb. (a) False (b) True
12. 12.⚡ Which of these does not move to a charged comb? (a) thermocol bits (b) puffed rice (c) a brick (d) dry hair
13. 13.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? True or false: number of rubs is kept the same. (a) True (b) False
14. 14.⚡ Which of these jumps to a charged comb? (a) a brick (b) tiny paper bits (c) a pebble (d) a steel spoon
15. 15.True or false: a pebble does not move to a charged comb. (a) True (b) False
16. 16.⚡ A rubbed comb is held near dry hair. 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? Which of these is what we measure? (a) distance to the paper (b) the same comb (c) paper bits picked up (d) the paper bit size
18. 18.🧺 Do we need tiny paper bits for the static comb? (a) needed (b) not needed
19. 19.⚡ A rubbed comb is held near tiny paper bits. What happens? (a) jumps to the comb (b) does not move
20. 20.🧺 Do we need vinegar for the static comb? (a) not needed (b) needed
21. 21.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? True or false: distance to the paper is the one thing we change. (a) True (b) False
22. 22.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) tiny paper bits (b) a plastic comb (c) turmeric powder (d) a balloon
23. 23.⚖️ 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
24. 24.⚡ A rubbed comb is held near thermocol bits. What happens? (a) jumps to the comb (b) does not move
25. 25.🛟 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
26. 26.🔮 Predict: a charged comb is held near a thin stream of tap water. What happens? (a) nothing at all (b) the water stops (c) the stream bends (d) the water freezes
27. 27.⚖️ 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
28. 28.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? Which of these is the one thing we change? (a) number of rubs (b) the same comb (c) distance to the paper (d) the same hair
29. 29.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) yeast (b) a plastic comb (c) dry hair (d) tiny paper bits
30. 30.🧺 Which of these is needed for the static comb? (a) a battery cell (b) a mirror (c) a balloon (d) vinegar
31. 31.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? What do we do with “the paper bit size”? (a) we measure it (b) we change it (c) we keep it the same
32. 32.⚖️ 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
33. 33.🧺 Do we need a battery cell for the static comb? (a) not needed (b) needed
34. 34.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) a balloon (b) tiny paper bits (c) a battery cell (d) dry hair
35. 35.⚡ A rubbed comb is held near a pebble. What happens? (a) does not move (b) jumps to the comb
36. 36.🧺 Do we need dry hair for the static comb? (a) not needed (b) needed
37. 37.🔮 Predict: you rub a balloon on dry hair and hold it on a wall. What happens? (a) it turns into water (b) it sticks for a while (c) it falls straight down (d) it bursts at once
38. 38.True or false: turmeric powder is needed for the static comb. (a) True (b) False
39. 39.⚡ Why does the comb trick work best on a dry day? (a) water adds charge (b) damp air leaks charge (c) wet hair is magnetic (d) dry days are noisy
40. 40.⚖️ 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

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