Static Electricity Experiment Worksheet

Science experiments lesson 21: Static electricity: comb and paper bits · Set 390 · 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.⚡ You comb dry hair and hold the comb near tiny paper bits. What happens? (a) the bits jump to it (b) nothing happens (c) they turn wet (d) they turn blue
2. 2.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) a battery cell (b) a plastic comb (c) a balloon (d) tiny paper bits
3. 3.⚡ A rubbed comb is held near tiny paper bits. What happens? (a) does not move (b) jumps to the comb
4. 4.True or false: a thin water stream jumps to a charged comb. (a) True (b) False
5. 5.True or false: vinegar is needed for the static comb. (a) True (b) False
6. 6.⚡ A rubbed comb is held near dry hair. What happens? (a) does not move (b) jumps to the comb
7. 7.⚖️ 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 change it (c) we keep it the same
8. 8.🛟 Static from a comb is safe. Which electricity must children never play with? (a) paper bits on a comb (b) a rubbed balloon (c) plug points at home (d) a rubbed plastic comb
9. 9.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) a mirror (b) tiny paper bits (c) a balloon (d) a plastic comb
10. 10.True or false: dry hair is not needed for the static comb. (a) False (b) True
11. 11.True or false: tiny paper bits jumps to a charged comb. (a) True (b) False
12. 12.⚖️ 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
13. 13.True or false: puffed rice does not move to a charged comb. (a) True (b) False
14. 14.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? True or false: number of rubs is kept the same. (a) True (b) False
15. 15.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? Which of these is what we measure? (a) distance to the paper (b) the same hair (c) the paper bit size (d) paper bits picked up
16. 16.🧺 Which of these is needed for the static comb? (a) dry hair (b) turmeric powder (c) a magnet (d) a battery cell
17. 17.🔮 Predict: a charged comb is held near a thin stream of tap water. What happens? (a) the water stops (b) the stream bends (c) the water freezes (d) nothing at all
18. 18.🔮 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 sticks for a while (d) it bursts at once
19. 19.🧺 Which of these is needed for the static comb? (a) vinegar (b) yeast (c) tiny paper bits (d) a magnet
20. 20.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? True or false: the paper bit size is the one thing we change. (a) False (b) True
21. 21.⚖️ 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
22. 22.⚡ A rubbed comb is held near thermocol bits. What happens? (a) jumps to the comb (b) does not move
23. 23.⚖️ 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
24. 24.True or false: a pebble does not move to a charged comb. (a) True (b) False
25. 25.🔮 Predict: you wet the comb before trying again. What happens? (a) it hardly works (b) it becomes a magnet (c) it works better (d) it lights up
26. 26.⚖️ 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) distance to the paper (d) the same hair
27. 27.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? True or false: the same comb is what we measure. (a) False (b) True
28. 28.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) a plastic comb (b) a balloon (c) dry hair (d) yeast
29. 29.True or false: thermocol bits does not move to a charged comb. (a) False (b) True
30. 30.🛟 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
31. 31.🧺 Do we need a plastic comb for the static comb? (a) needed (b) not needed
32. 32.⚡ Which of these jumps to a charged comb? (a) a pebble (b) a steel spoon (c) a brick (d) thermocol bits
33. 33.⚡ 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
34. 34.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? Which of these is kept the same? (a) the same comb (b) number of rubs (c) paper bits picked up
35. 35.⚖️ 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
36. 36.🧺 Which of these is not needed for the static comb? (a) tiny paper bits (b) a balloon (c) dry hair (d) turmeric powder
37. 37.⚡ A rubbed comb is held near a thin water stream. What happens? (a) jumps to the comb (b) does not move
38. 38.True or false: vinegar is not needed for the static comb. (a) True (b) False
39. 39.True or false: tiny paper bits is not needed for the static comb. (a) True (b) False
40. 40.True or false: a battery cell is needed for the static comb. (a) True (b) False

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