Static Electricity Experiment Worksheet

Science experiments lesson 21: Static electricity: comb and paper bits · Set 45 · 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: you wet the comb before trying again. What happens? (a) it lights up (b) it works better (c) it becomes a magnet (d) it hardly works
2. 2.🛟 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
3. 3.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) tiny paper bits (b) dry hair (c) a balloon (d) a magnet
4. 4.🧺 Do we need a plastic comb for the static comb? (a) needed (b) not needed
5. 5.🔮 Predict: you rub a balloon on dry hair and hold it on a wall. What happens? (a) it turns into water (b) it bursts at once (c) it falls straight down (d) it sticks for a while
6. 6.True or false: a thin water stream jumps to a charged comb. (a) True (b) False
7. 7.⚖️ 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) paper bits picked up (c) the same hair (d) number of rubs
8. 8.⚡ Which big natural spark is caused by static electricity? (a) dew (b) the wind (c) lightning (d) a rainbow
9. 9.True or false: a mirror is needed for the static comb. (a) False (b) True
10. 10.⚖️ 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
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) distance to the paper (b) the same hair (c) the same comb (d) number of rubs
12. 12.🧺 Which of these is not needed for the static comb? (a) tiny paper bits (b) a balloon (c) a mirror (d) a plastic comb
13. 13.⚖️ 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
14. 14.⚖️ 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
15. 15.🛟 There is lightning outside. Where is it safest to be? (a) on a rooftop (b) under a tall tree (c) in an open field (d) indoors
16. 16.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) a mirror (b) a balloon (c) a plastic comb (d) dry hair
17. 17.True or false: dry hair jumps to a charged comb. (a) False (b) True
18. 18.🧺 Do we need dry hair for the static comb? (a) not needed (b) needed
19. 19.⚡ A rubbed comb is held near a brick. What happens? (a) does not move (b) jumps to the comb
20. 20.True or false: yeast is needed for the static comb. (a) True (b) False
21. 21.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? True or false: the same comb is the one thing we change. (a) True (b) False
22. 22.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) dry hair (b) turmeric powder (c) a balloon (d) a plastic comb
23. 23.🔍 Which is the odd one out? (a) a thin water stream (b) a heavy book (c) puffed rice (d) tiny paper bits
24. 24.📘 Rubbing moves tiny charges. What do we call the charge that builds up? (a) gravity (b) magnetism (c) sunlight (d) static electricity
25. 25.⚡ A rubbed comb is held near a heavy book. What happens? (a) does not move (b) jumps to the comb
26. 26.True or false: a heavy book does not move to a charged comb. (a) True (b) False
27. 27.🧺 Do we need tiny paper bits for the static comb? (a) not needed (b) needed
28. 28.🧺 Which of these is not needed for the static comb? (a) tiny paper bits (b) vinegar (c) a balloon (d) dry hair
29. 29.🧺 Which of these is needed for the static comb? (a) a magnet (b) dry hair (c) vinegar (d) turmeric powder
30. 30.🔍 Which is the odd one out? (a) a pebble (b) thermocol bits (c) tiny paper bits (d) dry hair
31. 31.🔍 Which is the odd one out? (a) a brick (b) dry hair (c) a thin water stream (d) tiny paper bits
32. 32.⚡ 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
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 keep it the same (b) we measure it (c) we change it
34. 34.⚡ A rubbed comb is held near puffed rice. What happens? (a) does not move (b) jumps to the comb
35. 35.True or false: a pebble jumps to a charged comb. (a) True (b) False
36. 36.True or false: tiny paper bits jumps to a charged comb. (a) False (b) True
37. 37.🧺 Which of these is needed for the static comb? (a) a mirror (b) a balloon (c) turmeric powder (d) yeast
38. 38.⚡ A rubbed comb is held near tiny paper bits. What happens? (a) does not move (b) jumps to the comb
39. 39.🧺 Do we need a balloon for the static comb? (a) not needed (b) needed
40. 40.⚡ Why does the comb trick work best on a dry day? (a) water adds charge (b) dry days are noisy (c) wet hair is magnetic (d) damp air leaks charge

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