Static Electricity Experiment Worksheet

Science experiments lesson 21: Static electricity: comb and paper bits · Set 395 · 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.🔍 Which is the odd one out? (a) a heavy book (b) puffed rice (c) a steel spoon (d) a pebble
2. 2.🧺 Which of these is not needed for the static comb? (a) tiny paper bits (b) dry hair (c) a balloon (d) turmeric powder
3. 3.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? True or false: number of rubs is what we measure. (a) True (b) False
4. 4.⚡ A rubbed comb is held near a heavy book. What happens? (a) jumps to the comb (b) does not move
5. 5.🔮 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
6. 6.True or false: yeast is not needed for the static comb. (a) True (b) False
7. 7.⚡ Why does the comb trick work best on a dry day? (a) damp air leaks charge (b) water adds charge (c) wet hair is magnetic (d) dry days are noisy
8. 8.📘 Rubbing moves tiny charges. What do we call the charge that builds up? (a) static electricity (b) gravity (c) magnetism (d) sunlight
9. 9.True or false: dry hair does not move to a charged comb. (a) False (b) True
10. 10.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? Which of these is kept the same? (a) paper bits picked up (b) the same comb (c) number of rubs
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) the same hair (b) paper bits picked up (c) number of rubs (d) the paper bit size
12. 12.⚡ Which big natural spark is caused by static electricity? (a) the wind (b) dew (c) a rainbow (d) lightning
13. 13.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) a balloon (b) a plastic comb (c) a mirror (d) tiny paper bits
14. 14.🔍 Which is the odd one out? (a) a pebble (b) a brick (c) tiny paper bits (d) a steel spoon
15. 15.🔍 Which is the odd one out? (a) thermocol bits (b) a heavy book (c) a pebble (d) a steel spoon
16. 16.🔮 Predict: a charged comb is held near a thin stream of tap water. What happens? (a) nothing at all (b) the stream bends (c) the water stops (d) the water freezes
17. 17.🧺 Do we need a magnet for the static comb? (a) not needed (b) needed
18. 18.🔍 Which is the odd one out? (a) a steel spoon (b) dry hair (c) thermocol bits (d) tiny paper bits
19. 19.🧺 Which of these is not needed for the static comb? (a) a plastic comb (b) a balloon (c) a magnet (d) dry hair
20. 20.🛟 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
21. 21.🧺 Which of these is not needed for the static comb? (a) dry hair (b) a plastic comb (c) tiny paper bits (d) yeast
22. 22.True or false: tiny paper bits jumps to a charged comb. (a) True (b) False
23. 23.True or false: a magnet is needed for the static comb. (a) True (b) False
24. 24.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? True or false: the same hair is kept the same. (a) False (b) True
25. 25.True or false: a heavy book jumps to a charged comb. (a) False (b) True
26. 26.⚡ Which of these does not move to a charged comb? (a) tiny paper bits (b) a brick (c) a thin water stream (d) dry hair
27. 27.True or false: a thin water stream does not move to a charged comb. (a) False (b) True
28. 28.🧺 Which of these is not needed for the static comb? (a) tiny paper bits (b) dry hair (c) a balloon (d) vinegar
29. 29.🧺 Which of these is not needed for the static comb? (a) tiny paper bits (b) a plastic comb (c) a battery cell (d) dry hair
30. 30.⚡ A rubbed comb is held near thermocol bits. What happens? (a) does not move (b) jumps to the comb
31. 31.🔍 Which is the odd one out? (a) thermocol bits (b) tiny paper bits (c) dry hair (d) a brick
32. 32.True or false: dry hair is needed for the static comb. (a) True (b) False
33. 33.True or false: a pebble does not move to a charged comb. (a) True (b) False
34. 34.⚡ Which of these does not move to a charged comb? (a) tiny paper bits (b) a pebble (c) dry hair (d) puffed rice
35. 35.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? What do we do with “the paper bit size”? (a) we change it (b) we keep it the same (c) we measure it
36. 36.🧺 Do we need a balloon for the static comb? (a) needed (b) not needed
37. 37.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? Which of these is what we measure? (a) the same hair (b) number of rubs (c) the same comb (d) paper bits picked up
38. 38.⚡ You comb dry hair and hold the comb near tiny paper bits. What happens? (a) nothing happens (b) they turn wet (c) they turn blue (d) the bits jump to it
39. 39.⚡ A rubbed comb is held near a brick. What happens? (a) jumps to the comb (b) does not move
40. 40.⚖️ 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

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