Static Electricity Experiment Worksheet

Science experiments lesson 21: Static electricity: comb and paper bits · Set 610 · 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.🔮 Predict: a charged comb is held near a thin stream of tap water. What happens? (a) the water freezes (b) nothing at all (c) the stream bends (d) the water stops
2. 2.True or false: a mirror is not needed for the static comb. (a) True (b) False
3. 3.⚡ A rubbed comb is held near puffed rice. What happens? (a) does not move (b) jumps to the comb
4. 4.🧺 Do we need tiny paper bits for the static comb? (a) not needed (b) needed
5. 5.⚡ Why does the comb trick work best on a dry day? (a) wet hair is magnetic (b) damp air leaks charge (c) water adds charge (d) dry days are noisy
6. 6.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? What do we do with “number of rubs”? (a) we measure it (b) we keep it the same (c) we change it
7. 7.🧺 Do we need a battery cell for the static comb? (a) not needed (b) needed
8. 8.⚖️ 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 comb (d) distance to the paper
9. 9.🧺 Which of these is needed for the static comb? (a) turmeric powder (b) a mirror (c) a magnet (d) tiny paper bits
10. 10.🧺 Do we need a mirror for the static comb? (a) needed (b) not needed
11. 11.🧺 Which of these is needed for the static comb? (a) a battery cell (b) yeast (c) a plastic comb (d) turmeric powder
12. 12.🛟 There is lightning outside. Where is it safest to be? (a) indoors (b) in an open field (c) under a tall tree (d) on a rooftop
13. 13.True or false: yeast is not needed for the static comb. (a) False (b) True
14. 14.🔍 Which is the odd one out? (a) tiny paper bits (b) a heavy book (c) a steel spoon (d) a pebble
15. 15.🧺 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
16. 16.⚖️ 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
17. 17.🔮 Predict: you rub a balloon on dry hair and hold it on a wall. What happens? (a) it turns into water (b) it falls straight down (c) it bursts at once (d) it sticks for a while
18. 18.🧺 Do we need vinegar for the static comb? (a) needed (b) not needed
19. 19.⚡ A rubbed comb is held near tiny paper bits. What happens? (a) does not move (b) jumps to the comb
20. 20.🛟 Static from a comb is safe. Which electricity must children never play with? (a) a rubbed plastic comb (b) plug points at home (c) a rubbed balloon (d) paper bits on a comb
21. 21.True or false: a magnet is needed for the static comb. (a) False (b) True
22. 22.True or false: dry hair does not move to a charged comb. (a) True (b) False
23. 23.⚖️ 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 keep it the same (c) we measure it
24. 24.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) a balloon (b) yeast (c) tiny paper bits (d) a plastic comb
25. 25.🧺 Do we need dry hair for the static comb? (a) not needed (b) needed
26. 26.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? What do we do with “the same hair”? (a) we measure it (b) we change it (c) we keep it the same
27. 27.⚡ Why does the rubbed comb pull the paper bits? (a) it is sticky (b) it has static charge (c) it is hot (d) it is a magnet
28. 28.⚡ A rubbed comb is held near a steel spoon. What happens? (a) does not move (b) jumps to the comb
29. 29.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) vinegar (b) dry hair (c) tiny paper bits (d) a plastic comb
30. 30.True or false: a thin water stream jumps to a charged comb. (a) False (b) True
31. 31.True or false: puffed rice does not move to a charged comb. (a) True (b) False
32. 32.True or false: a brick does not move to a charged comb. (a) True (b) False
33. 33.⚖️ 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
34. 34.True or false: thermocol bits does not move to a charged comb. (a) True (b) False
35. 35.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) dry hair (b) a plastic comb (c) a balloon (d) a mirror
36. 36.⚖️ 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) False (b) True
37. 37.🧺 Do we need a plastic comb for the static comb? (a) not needed (b) needed
38. 38.🧺 Do we need turmeric powder for the static comb? (a) not needed (b) needed
39. 39.🔍 Which is the odd one out? (a) tiny paper bits (b) a thin water stream (c) puffed rice (d) a heavy book
40. 40.🔍 Which is the odd one out? (a) a thin water stream (b) a heavy book (c) a brick (d) a steel spoon

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