Static Electricity Experiment Worksheet

Science experiments lesson 21: Static electricity: comb and paper bits · Set 515 · 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.True or false: a plastic comb is not needed for the static comb. (a) True (b) False
2. 2.⚖️ 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
3. 3.⚖️ 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) the same comb (c) number of rubs (d) the same hair
4. 4.⚡ Which of these jumps to a charged comb? (a) a pebble (b) a brick (c) a steel spoon (d) thermocol bits
5. 5.🧺 Which of these is not needed for the static comb? (a) vinegar (b) tiny paper bits (c) a balloon (d) a plastic comb
6. 6.🔮 Predict: you rub a balloon on dry hair and hold it on a wall. What happens? (a) it bursts at once (b) it falls straight down (c) it sticks for a while (d) it turns into water
7. 7.True or false: a plastic comb is needed for the static comb. (a) False (b) True
8. 8.⚡ A rubbed comb is held near a thin water stream. What happens? (a) jumps to the comb (b) does not move
9. 9.True or false: a balloon is not needed for the static comb. (a) False (b) True
10. 10.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) tiny paper bits (b) a mirror (c) a plastic comb (d) a balloon
11. 11.True or false: a heavy book jumps to a charged comb. (a) True (b) False
12. 12.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? True or false: distance to the paper is kept the same. (a) False (b) True
13. 13.⚖️ 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) distance to the paper (d) the same hair
14. 14.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) tiny paper bits (b) a plastic comb (c) a magnet (d) dry hair
15. 15.🔍 Which is the odd one out? (a) a heavy book (b) dry hair (c) a pebble (d) a brick
16. 16.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) a balloon (b) dry hair (c) yeast (d) a plastic comb
17. 17.⚡ Which big natural spark is caused by static electricity? (a) the wind (b) a rainbow (c) dew (d) lightning
18. 18.🧺 Which of these is needed for the static comb? (a) turmeric powder (b) a plastic comb (c) a magnet (d) a mirror
19. 19.🧺 Do we need tiny paper bits for the static comb? (a) not needed (b) needed
20. 20.🧺 Which of these is needed for the static comb? (a) yeast (b) a mirror (c) tiny paper bits (d) vinegar
21. 21.📘 Rubbing moves tiny charges. What do we call the charge that builds up? (a) magnetism (b) static electricity (c) gravity (d) sunlight
22. 22.🔍 Which is the odd one out? (a) a pebble (b) puffed rice (c) a steel spoon (d) a brick
23. 23.⚡ A rubbed comb is held near a pebble. What happens? (a) does not move (b) jumps to the comb
24. 24.⚡ A rubbed comb is held near a steel spoon. What happens? (a) jumps to the comb (b) does not move
25. 25.⚡ Which of these does not move to a charged comb? (a) puffed rice (b) a heavy book (c) thermocol bits (d) dry hair
26. 26.⚡ Why does the comb trick work best on a dry day? (a) damp air leaks charge (b) wet hair is magnetic (c) dry days are noisy (d) water adds charge
27. 27.True or false: turmeric powder is needed for the static comb. (a) True (b) False
28. 28.🧺 Do we need a mirror for the static comb? (a) not needed (b) needed
29. 29.🧺 Do we need vinegar for the static comb? (a) needed (b) not needed
30. 30.🛟 There is lightning outside. Where is it safest to be? (a) in an open field (b) on a rooftop (c) under a tall tree (d) indoors
31. 31.True or false: puffed rice jumps to a charged comb. (a) True (b) False
32. 32.🔍 Which is the odd one out? (a) a steel spoon (b) puffed rice (c) thermocol bits (d) tiny paper bits
33. 33.🧺 Do we need a magnet for the static comb? (a) needed (b) not needed
34. 34.⚖️ 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
35. 35.🧺 Which of these is not needed for the static comb? (a) a balloon (b) turmeric powder (c) tiny paper bits (d) dry hair
36. 36.⚖️ 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) True (b) False
37. 37.🧺 Which of these is not needed for the static comb? (a) a battery cell (b) a plastic comb (c) a balloon (d) tiny paper bits
38. 38.🔍 Which is the odd one out? (a) a heavy book (b) tiny paper bits (c) thermocol bits (d) puffed rice
39. 39.True or false: vinegar is needed for the static comb. (a) True (b) False
40. 40.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) tiny paper bits (b) a battery cell (c) dry hair (d) a balloon

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