Static Electricity Experiment Worksheet

Science experiments lesson 21: Static electricity: comb and paper bits · Set 422 · 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: paper bits picked up is kept the same. (a) False (b) True
2. 2.⚡ Why does the comb trick work best on a dry day? (a) dry days are noisy (b) water adds charge (c) damp air leaks charge (d) wet hair is magnetic
3. 3.⚡ A rubbed comb is held near a pebble. What happens? (a) does not move (b) jumps to the comb
4. 4.🔮 Predict: you wet the comb before trying again. What happens? (a) it lights up (b) it becomes a magnet (c) it hardly works (d) it works better
5. 5.🛟 There is lightning outside. Where is it safest to be? (a) indoors (b) under a tall tree (c) on a rooftop (d) in an open field
6. 6.⚡ A rubbed comb is held near dry hair. What happens? (a) does not move (b) jumps to the comb
7. 7.🛟 Static from a comb is safe. Which electricity must children never play with? (a) a rubbed balloon (b) a rubbed plastic comb (c) plug points at home (d) paper bits on a comb
8. 8.⚖️ 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
9. 9.🧺 Do we need a mirror for the static comb? (a) needed (b) not needed
10. 10.🔮 Predict: a charged comb is held near a thin stream of tap water. What happens? (a) nothing at all (b) the stream bends (c) the water stops (d) the water freezes
11. 11.⚖️ 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
12. 12.🧺 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) turmeric powder
13. 13.True or false: a steel spoon does not move to a charged comb. (a) False (b) True
14. 14.True or false: a magnet is not needed for the static comb. (a) False (b) True
15. 15.🧺 Do we need vinegar for the static comb? (a) not needed (b) needed
16. 16.🔍 Which is the odd one out? (a) puffed rice (b) a heavy book (c) dry hair (d) thermocol bits
17. 17.🧺 Which of these is needed for the static comb? (a) turmeric powder (b) a mirror (c) a plastic comb (d) a battery cell
18. 18.🧺 Do we need turmeric powder for the static comb? (a) not needed (b) needed
19. 19.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? What do we do with “paper bits picked up”? (a) we measure it (b) we keep it the same (c) we change it
20. 20.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? Which of these is the one thing we change? (a) distance to the paper (b) the paper bit size (c) the same comb (d) number of rubs
21. 21.🧺 Which of these is needed for the static comb? (a) dry hair (b) a magnet (c) turmeric powder (d) a mirror
22. 22.True or false: dry hair jumps to a charged comb. (a) False (b) True
23. 23.⚡ Which of these does not move to a charged comb? (a) tiny paper bits (b) a thin water stream (c) puffed rice (d) a steel spoon
24. 24.True or false: dry hair does not move to a charged comb. (a) True (b) False
25. 25.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? True or false: distance to the paper is what we measure. (a) True (b) False
26. 26.⚖️ 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 paper bit size (d) distance to the paper
27. 27.🧺 Which of these is needed for the static comb? (a) a battery cell (b) tiny paper bits (c) a mirror (d) yeast
28. 28.⚖️ 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) number of rubs (c) the paper bit size
29. 29.🧺 Which of these is not needed for the static comb? (a) a balloon (b) yeast (c) a plastic comb (d) tiny paper bits
30. 30.True or false: a plastic comb is needed for the static comb. (a) False (b) True
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 keep it the same (b) we change it (c) we measure it
32. 32.⚡ You comb dry hair and hold the comb near tiny paper bits. What happens? (a) the bits jump to it (b) they turn wet (c) nothing happens (d) they turn blue
33. 33.⚖️ 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) distance to the paper (c) paper bits picked up
34. 34.⚡ A rubbed comb is held near a brick. What happens? (a) jumps to the comb (b) does not move
35. 35.True or false: a battery cell is not needed for the static comb. (a) True (b) False
36. 36.🔮 Predict: you rub a balloon on dry hair and hold it on a wall. What happens? (a) it sticks for a while (b) it turns into water (c) it falls straight down (d) it bursts at once
37. 37.🧺 Which of these is not needed for the static comb? (a) dry hair (b) tiny paper bits (c) a plastic comb (d) turmeric powder
38. 38.🔍 Which is the odd one out? (a) tiny paper bits (b) dry hair (c) a pebble (d) puffed rice
39. 39.True or false: tiny paper bits does not move to a charged comb. (a) False (b) True
40. 40.⚡ A rubbed comb is held near thermocol bits. What happens? (a) does not move (b) jumps to the comb

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