Static Electricity Experiment Worksheet

Science experiments lesson 21: Static electricity: comb and paper bits · Set 771 · 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: yeast is needed for the static comb. (a) True (b) False
2. 2.⚡ Which of these does not move to a charged comb? (a) thermocol bits (b) tiny paper bits (c) a steel spoon (d) dry hair
3. 3.True or false: a battery cell is not needed for the static comb. (a) True (b) False
4. 4.🧺 Do we need vinegar for the static comb? (a) not needed (b) needed
5. 5.⚖️ 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) distance to the paper (c) number of rubs (d) the same comb
6. 6.True or false: a brick jumps to a charged comb. (a) True (b) False
7. 7.⚖️ 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
8. 8.True or false: puffed rice jumps to a charged comb. (a) False (b) True
9. 9.⚡ Which big natural spark is caused by static electricity? (a) dew (b) lightning (c) a rainbow (d) the wind
10. 10.📘 Rubbing moves tiny charges. What do we call the charge that builds up? (a) gravity (b) static electricity (c) sunlight (d) magnetism
11. 11.True or false: dry hair is not needed for the static comb. (a) False (b) True
12. 12.True or false: tiny paper bits is not needed for the static comb. (a) False (b) True
13. 13.🔍 Which is the odd one out? (a) dry hair (b) a steel spoon (c) puffed rice (d) a thin water stream
14. 14.🧺 Do we need turmeric powder for the static comb? (a) needed (b) not needed
15. 15.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? True or false: number of rubs is kept the same. (a) False (b) True
16. 16.True or false: tiny paper bits does not move to a charged comb. (a) True (b) False
17. 17.⚡ Which of these does not move to a charged comb? (a) tiny paper bits (b) a thin water stream (c) a heavy book (d) dry hair
18. 18.🧺 Do we need tiny paper bits for the static comb? (a) needed (b) not needed
19. 19.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? Which of these is kept the same? (a) the paper bit size (b) paper bits picked up (c) number of rubs
20. 20.🧺 Which of these is not needed for the static comb? (a) a balloon (b) tiny paper bits (c) dry hair (d) a battery cell
21. 21.🔍 Which is the odd one out? (a) a steel spoon (b) a heavy book (c) a thin water stream (d) a brick
22. 22.⚡ Which of these does not move to a charged comb? (a) thermocol bits (b) a brick (c) a thin water stream (d) dry hair
23. 23.⚖️ 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) the same hair (c) paper bits picked up
24. 24.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? True or false: the same comb is kept the same. (a) False (b) True
25. 25.True or false: yeast is not needed for the static comb. (a) False (b) True
26. 26.🔮 Predict: a charged comb is held near a thin stream of tap water. What happens? (a) the water stops (b) the stream bends (c) nothing at all (d) the water freezes
27. 27.⚡ Why does the comb trick work best on a dry day? (a) damp air leaks charge (b) wet hair is magnetic (c) water adds charge (d) dry days are noisy
28. 28.🧺 Do we need dry hair for the static comb? (a) needed (b) not needed
29. 29.⚡ You comb dry hair and hold the comb near tiny paper bits. What happens? (a) they turn blue (b) they turn wet (c) the bits jump to it (d) nothing happens
30. 30.🔮 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 bursts at once (d) it sticks for a while
31. 31.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? True or false: distance to the paper is the one thing we change. (a) False (b) True
32. 32.🔍 Which is the odd one out? (a) a heavy book (b) a pebble (c) a steel spoon (d) dry hair
33. 33.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? True or false: paper bits picked up is what we measure. (a) False (b) True
34. 34.🧺 Do we need a plastic comb for the static comb? (a) not needed (b) needed
35. 35.⚡ A rubbed comb is held near puffed rice. What happens? (a) does not move (b) jumps to the comb
36. 36.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) a mirror (b) dry hair (c) a balloon (d) tiny paper bits
37. 37.🛟 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
38. 38.🧺 Which of these is needed for the static comb? (a) vinegar (b) a balloon (c) a magnet (d) turmeric powder
39. 39.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? What do we do with “the same comb”? (a) we keep it the same (b) we measure it (c) we change it
40. 40.True or false: a plastic comb is not needed for the static comb. (a) False (b) True

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