Static Electricity Experiment Worksheet

Science experiments lesson 21: Static electricity: comb and paper bits · Set 38 · 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 a balloon for the static comb? (a) needed (b) not needed
2. 2.⚡ A rubbed comb is held near puffed rice. What happens? (a) does not move (b) jumps to the comb
3. 3.🧺 Do we need vinegar for the static comb? (a) not needed (b) needed
4. 4.🧺 Which of these is not needed for the static comb? (a) a plastic comb (b) dry hair (c) tiny paper bits (d) turmeric powder
5. 5.⚡ You comb dry hair and hold the comb near tiny paper bits. What happens? (a) they turn blue (b) they turn wet (c) the bits jump to it (d) nothing happens
6. 6.⚡ Why does the rubbed comb pull the paper bits? (a) it is sticky (b) it has static charge (c) it is a magnet (d) it is hot
7. 7.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? True or false: the paper bit size is kept the same. (a) False (b) True
8. 8.⚖️ 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 change it (c) we measure it
9. 9.True or false: a battery cell is not needed for the static comb. (a) True (b) False
10. 10.True or false: a brick jumps to a charged comb. (a) False (b) True
11. 11.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? True or false: distance to the paper is kept the same. (a) False (b) True
12. 12.True or false: a mirror is not needed for the static comb. (a) False (b) True
13. 13.🧺 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 battery cell
14. 14.🛟 Static from a comb is safe. Which electricity must children never play with? (a) a rubbed plastic comb (b) paper bits on a comb (c) a rubbed balloon (d) plug points at home
15. 15.🧺 Which of these is not needed for the static comb? (a) dry hair (b) tiny paper bits (c) a magnet (d) a balloon
16. 16.🛟 There is lightning outside. Where is it safest to be? (a) in an open field (b) indoors (c) under a tall tree (d) on a rooftop
17. 17.🧺 Do we need turmeric powder for the static comb? (a) not needed (b) needed
18. 18.⚡ A rubbed comb is held near dry hair. What happens? (a) does not move (b) jumps to the comb
19. 19.🧺 Which of these is needed for the static comb? (a) yeast (b) a plastic comb (c) vinegar (d) a magnet
20. 20.🧺 Do we need a plastic comb for the static comb? (a) not needed (b) needed
21. 21.⚡ A rubbed comb is held near thermocol bits. What happens? (a) does not move (b) jumps to the comb
22. 22.🧺 Do we need dry hair for the static comb? (a) needed (b) not needed
23. 23.🧺 Which of these is needed for the static comb? (a) tiny paper bits (b) turmeric powder (c) yeast (d) a mirror
24. 24.🔮 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 bursts at once (d) it falls straight down
25. 25.⚡ Why does the comb trick work best on a dry day? (a) damp air leaks charge (b) dry days are noisy (c) wet hair is magnetic (d) water adds charge
26. 26.True or false: a balloon is not needed for the static comb. (a) False (b) True
27. 27.True or false: vinegar is not needed for the static comb. (a) False (b) True
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 hair (c) the same comb (d) the paper bit size
29. 29.🧺 Do we need a magnet for the static comb? (a) not needed (b) needed
30. 30.True or false: a plastic comb is needed for the static comb. (a) True (b) False
31. 31.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) a magnet (b) tiny paper bits (c) a plastic comb (d) a balloon
32. 32.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? Which of these is kept the same? (a) paper bits picked up (b) distance to the paper (c) number of rubs
33. 33.⚡ Which of these does not move to a charged comb? (a) tiny paper bits (b) dry hair (c) a heavy book (d) a thin water stream
34. 34.⚡ A rubbed comb is held near a thin water stream. What happens? (a) jumps to the comb (b) does not move
35. 35.🧺 Do we need a battery cell for the static comb? (a) not needed (b) needed
36. 36.True or false: a pebble does not move to a charged comb. (a) False (b) True
37. 37.True or false: a plastic comb is not needed for the static comb. (a) True (b) False
38. 38.🔮 Predict: you wet the comb before trying again. What happens? (a) it hardly works (b) it lights up (c) it becomes a magnet (d) it works better
39. 39.⚡ Which of these jumps to a charged comb? (a) a heavy book (b) a steel spoon (c) a pebble (d) a thin water stream
40. 40.⚖️ 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 same comb (d) number of rubs

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