Static Electricity Experiment Worksheet

Science experiments lesson 21: Static electricity: comb and paper bits · Set 921 · 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.⚖️ 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
2. 2.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? What do we do with “paper bits picked up”? (a) we change it (b) we measure it (c) we keep it the same
3. 3.True or false: tiny paper bits is not needed for the static comb. (a) True (b) False
4. 4.🔮 Predict: you rub a balloon on dry hair and hold it on a wall. What happens? (a) it sticks for a while (b) it falls straight down (c) it turns into water (d) it bursts at once
5. 5.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? True or false: paper bits picked up is the one thing we change. (a) True (b) False
6. 6.⚡ Why does the comb trick work best on a dry day? (a) wet hair is magnetic (b) dry days are noisy (c) damp air leaks charge (d) water adds charge
7. 7.🧺 Do we need a plastic comb for the static comb? (a) not needed (b) needed
8. 8.🧺 Which of these is not needed for the static comb? (a) tiny paper bits (b) a balloon (c) dry hair (d) a battery cell
9. 9.🧺 Which of these is not needed for the static comb? (a) tiny paper bits (b) a plastic comb (c) dry hair (d) vinegar
10. 10.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? What do we do with “the same comb”? (a) we change it (b) we measure it (c) we keep it the same
11. 11.🧺 Which of these is needed for the static comb? (a) a balloon (b) yeast (c) turmeric powder (d) a battery cell
12. 12.True or false: turmeric powder is not needed for the static comb. (a) False (b) True
13. 13.True or false: puffed rice does not move to a charged comb. (a) False (b) True
14. 14.🔍 Which is the odd one out? (a) dry hair (b) a heavy book (c) a steel spoon (d) a brick
15. 15.⚖️ 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 measure it (c) we keep it the same
16. 16.🧺 Do we need dry hair for the static comb? (a) not needed (b) needed
17. 17.🛟 Static from a comb is safe. Which electricity must children never play with? (a) plug points at home (b) a rubbed balloon (c) paper bits on a comb (d) a rubbed plastic comb
18. 18.True or false: a mirror is needed for the static comb. (a) False (b) True
19. 19.True or false: a plastic comb is needed for the static comb. (a) True (b) False
20. 20.🔍 Which is the odd one out? (a) a thin water stream (b) thermocol bits (c) tiny paper bits (d) a steel spoon
21. 21.🔮 Predict: you wet the comb before trying again. What happens? (a) it works better (b) it lights up (c) it becomes a magnet (d) it hardly works
22. 22.🧺 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 mirror
23. 23.True or false: a brick does not move to a charged comb. (a) False (b) True
24. 24.⚖️ 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) paper bits picked up (c) the same hair
25. 25.⚖️ 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) the same comb (c) distance to the paper (d) number of rubs
26. 26.⚡ Which of these does not move to a charged comb? (a) puffed rice (b) a pebble (c) tiny paper bits (d) thermocol bits
27. 27.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) a plastic comb (b) dry hair (c) tiny paper bits (d) vinegar
28. 28.⚖️ 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
29. 29.🧺 Do we need vinegar for the static comb? (a) not needed (b) needed
30. 30.True or false: a balloon is not needed for the static comb. (a) False (b) True
31. 31.🧺 Do we need tiny paper bits for the static comb? (a) needed (b) not needed
32. 32.🛟 There is lightning outside. Where is it safest to be? (a) on a rooftop (b) indoors (c) in an open field (d) under a tall tree
33. 33.⚡ Why does the rubbed comb pull the paper bits? (a) it is sticky (b) it is a magnet (c) it has static charge (d) it is hot
34. 34.🧺 Which of these is needed for the static comb? (a) turmeric powder (b) a battery cell (c) a plastic comb (d) yeast
35. 35.⚡ Which of these does not move to a charged comb? (a) tiny paper bits (b) a steel spoon (c) a thin water stream (d) puffed rice
36. 36.🧺 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) dry hair
37. 37.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? True or false: number of rubs is kept the same. (a) False (b) True
38. 38.⚡ A rubbed comb is held near a thin water stream. What happens? (a) does not move (b) jumps to the comb
39. 39.⚡ A rubbed comb is held near a brick. What happens? (a) jumps to the comb (b) does not move
40. 40.⚡ Which big natural spark is caused by static electricity? (a) a rainbow (b) lightning (c) the wind (d) dew

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