Static Electricity Experiment Worksheet

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

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