Static Electricity Experiment Worksheet

Science experiments lesson 21: Static electricity: comb and paper bits · Set 990 · 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.🛟 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
2. 2.⚡ A rubbed comb is held near puffed rice. What happens? (a) jumps to the comb (b) does not move
3. 3.🧺 Do we need a battery cell for the static comb? (a) not needed (b) needed
4. 4.🔮 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
5. 5.⚡ You comb dry hair and hold the comb near tiny paper bits. What happens? (a) nothing happens (b) they turn blue (c) they turn wet (d) the bits jump to it
6. 6.⚖️ 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
7. 7.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? True or false: the same hair is the one thing we change. (a) True (b) False
8. 8.⚡ A rubbed comb is held near a pebble. What happens? (a) jumps to the comb (b) does not move
9. 9.⚖️ 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 comb (b) the same hair (c) number of rubs (d) paper bits picked up
10. 10.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? What do we do with “the paper bit size”? (a) we keep it the same (b) we measure it (c) we change it
11. 11.True or false: dry hair does not move to a charged comb. (a) False (b) True
12. 12.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) a plastic comb (b) tiny paper bits (c) a magnet (d) dry hair
13. 13.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? True or false: number of rubs is the one thing we change. (a) False (b) True
14. 14.🔮 Predict: you rub a balloon on dry hair and hold it on a wall. What happens? (a) it falls straight down (b) it bursts at once (c) it turns into water (d) it sticks for a while
15. 15.True or false: a thin water stream jumps to a charged comb. (a) True (b) False
16. 16.⚡ Which of these does not move to a charged comb? (a) tiny paper bits (b) thermocol bits (c) a pebble (d) a thin water stream
17. 17.True or false: thermocol bits jumps to a charged comb. (a) False (b) True
18. 18.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) vinegar (b) tiny paper bits (c) dry hair (d) a balloon
19. 19.True or false: a battery cell is not needed for the static comb. (a) False (b) True
20. 20.True or false: a pebble does not move to a charged comb. (a) True (b) False
21. 21.⚡ A rubbed comb is held near tiny paper bits. What happens? (a) does not move (b) jumps to the comb
22. 22.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) a balloon (b) tiny paper bits (c) a plastic comb (d) turmeric powder
23. 23.⚖️ 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
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) True (b) False
25. 25.⚡ A rubbed comb is held near a brick. What happens? (a) jumps to the comb (b) does not move
26. 26.⚡ A rubbed comb is held near a thin water stream. What happens? (a) does not move (b) jumps to the comb
27. 27.⚡ Why does the comb trick work best on a dry day? (a) dry days are noisy (b) water adds charge (c) wet hair is magnetic (d) damp air leaks charge
28. 28.🧺 Which of these is needed for the static comb? (a) tiny paper bits (b) yeast (c) a magnet (d) a mirror
29. 29.🧺 Which of these is not needed for the static comb? (a) a balloon (b) dry hair (c) a plastic comb (d) a magnet
30. 30.True or false: yeast is not needed for the static comb. (a) True (b) False
31. 31.🧺 Which of these is needed for the static comb? (a) a mirror (b) a battery cell (c) a balloon (d) a magnet
32. 32.⚡ Which big natural spark is caused by static electricity? (a) dew (b) a rainbow (c) the wind (d) lightning
33. 33.⚖️ 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
34. 34.🔮 Predict: a charged comb is held near a thin stream of tap water. What happens? (a) the water stops (b) nothing at all (c) the water freezes (d) the stream bends
35. 35.True or false: a balloon is not needed for the static comb. (a) True (b) False
36. 36.⚡ A rubbed comb is held near a heavy book. What happens? (a) jumps to the comb (b) does not move
37. 37.⚖️ 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) paper bits picked up (c) the same hair
38. 38.🧺 Do we need yeast for the static comb? (a) needed (b) not needed
39. 39.🧺 Do we need a plastic comb for the static comb? (a) not needed (b) needed
40. 40.True or false: a magnet is not needed for the static comb. (a) False (b) True

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