Static Electricity Experiment Worksheet

Science experiments lesson 21: Static electricity: comb and paper bits · Set 552 · 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.⚡ A rubbed comb is held near tiny paper bits. What happens? (a) does not move (b) jumps to the comb
2. 2.🧺 Which of these is not needed for the static comb? (a) turmeric powder (b) dry hair (c) a balloon (d) tiny paper bits
3. 3.🧺 Do we need dry hair for the static comb? (a) needed (b) not needed
4. 4.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? What do we do with “paper bits picked up”? (a) we keep it the same (b) we measure it (c) we change it
5. 5.True or false: a magnet is not needed for the static comb. (a) False (b) True
6. 6.True or false: a brick jumps to a charged comb. (a) False (b) True
7. 7.True or false: vinegar is needed for the static comb. (a) True (b) False
8. 8.True or false: thermocol bits jumps to a charged comb. (a) False (b) True
9. 9.🛟 Static from a comb is safe. Which electricity must children never play with? (a) plug points at home (b) paper bits on a comb (c) a rubbed balloon (d) a rubbed plastic comb
10. 10.⚡ A rubbed comb is held near puffed rice. What happens? (a) jumps to the comb (b) does not move
11. 11.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? Which of these is the one thing we change? (a) paper bits picked up (b) number of rubs (c) the same comb (d) the paper bit size
12. 12.⚡ Why does the comb trick work best on a dry day? (a) water adds charge (b) damp air leaks charge (c) wet hair is magnetic (d) dry days are noisy
13. 13.🧺 Which of these is not needed for the static comb? (a) dry hair (b) a plastic comb (c) tiny paper bits (d) a mirror
14. 14.🧺 Do we need a battery cell for the static comb? (a) needed (b) not needed
15. 15.🔮 Predict: you wet the comb before trying again. What happens? (a) it hardly works (b) it lights up (c) it works better (d) it becomes a magnet
16. 16.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) tiny paper bits (b) a balloon (c) dry hair (d) a magnet
17. 17.⚖️ 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 measure it (c) we change it
18. 18.🧺 Do we need a mirror for the static comb? (a) needed (b) not needed
19. 19.🧺 Do we need yeast for the static comb? (a) not needed (b) needed
20. 20.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) yeast (b) a plastic comb (c) dry hair (d) a balloon
21. 21.🔮 Predict: you rub a balloon on dry hair and hold it on a wall. What happens? (a) it falls straight down (b) it sticks for a while (c) it turns into water (d) it bursts at once
22. 22.🛟 There is lightning outside. Where is it safest to be? (a) under a tall tree (b) on a rooftop (c) in an open field (d) indoors
23. 23.⚡ A rubbed comb is held near a brick. What happens? (a) jumps to the comb (b) does not move
24. 24.🧺 Do we need vinegar for the static comb? (a) not needed (b) needed
25. 25.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? Which of these is what we measure? (a) paper bits picked up (b) number of rubs (c) the same comb (d) the same hair
26. 26.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? True or false: number of rubs is what we measure. (a) False (b) True
27. 27.⚖️ 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 keep it the same (c) we measure it
28. 28.True or false: a battery cell is needed for the static comb. (a) False (b) True
29. 29.🔍 Which is the odd one out? (a) a steel spoon (b) a thin water stream (c) puffed rice (d) tiny paper bits
30. 30.True or false: a steel spoon does not move to a charged comb. (a) True (b) False
31. 31.⚡ 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
32. 32.True or false: a steel spoon jumps to a charged comb. (a) False (b) True
33. 33.⚖️ 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
34. 34.True or false: tiny paper bits jumps to a charged comb. (a) True (b) False
35. 35.🧺 Which of these is needed for the static comb? (a) a magnet (b) a plastic comb (c) a battery cell (d) yeast
36. 36.🔍 Which is the odd one out? (a) thermocol bits (b) dry hair (c) a pebble (d) tiny paper bits
37. 37.🧺 Do we need a plastic comb for the static comb? (a) not needed (b) needed
38. 38.🔮 Predict: a charged comb is held near a thin stream of tap water. What happens? (a) the water freezes (b) the stream bends (c) nothing at all (d) the water stops
39. 39.True or false: a heavy book does not move to a charged comb. (a) False (b) True
40. 40.True or false: a mirror is not needed for the static comb. (a) False (b) True

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