Static Electricity Experiment Worksheet

Science experiments lesson 21: Static electricity: comb and paper bits · Set 275 · 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.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? True or false: the same comb is what we measure. (a) True (b) False
2. 2.True or false: a mirror is not needed for the static comb. (a) False (b) True
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) False (b) True
4. 4.🔍 Which is the odd one out? (a) a pebble (b) a heavy book (c) dry hair (d) a brick
5. 5.⚖️ 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) number of rubs (c) the same comb
6. 6.🧺 Do we need dry hair for the static comb? (a) not needed (b) needed
7. 7.⚡ Which of these does not move to a charged comb? (a) dry hair (b) a pebble (c) tiny paper bits (d) thermocol bits
8. 8.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? What do we do with “the paper bit size”? (a) we measure it (b) we change it (c) we keep it the same
9. 9.🔍 Which is the odd one out? (a) dry hair (b) puffed rice (c) tiny paper bits (d) a heavy book
10. 10.⚖️ 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 change it (c) we measure it
11. 11.True or false: tiny paper bits does not move to a charged comb. (a) False (b) True
12. 12.⚡ Which big natural spark is caused by static electricity? (a) a rainbow (b) dew (c) the wind (d) lightning
13. 13.⚖️ 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
14. 14.🧺 Do we need a plastic comb for the static comb? (a) not needed (b) needed
15. 15.🔮 Predict: you wet the comb before trying again. What happens? (a) it works better (b) it hardly works (c) it becomes a magnet (d) it lights up
16. 16.⚡ A rubbed comb is held near a steel spoon. What happens? (a) jumps to the comb (b) does not move
17. 17.🔮 Predict: a charged comb is held near a thin stream of tap water. What happens? (a) the stream bends (b) the water stops (c) the water freezes (d) nothing at all
18. 18.True or false: turmeric powder is not needed for the static comb. (a) True (b) False
19. 19.True or false: yeast is needed for the static comb. (a) True (b) False
20. 20.🔍 Which is the odd one out? (a) a pebble (b) a heavy book (c) a thin water stream (d) a steel spoon
21. 21.🧺 Which of these is needed for the static comb? (a) a magnet (b) turmeric powder (c) a battery cell (d) a plastic comb
22. 22.🔍 Which is the odd one out? (a) a thin water stream (b) a steel spoon (c) dry hair (d) tiny paper bits
23. 23.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) dry hair (b) a plastic comb (c) a mirror (d) a balloon
24. 24.True or false: dry hair does not move to a charged comb. (a) True (b) False
25. 25.⚖️ 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 paper bit size
26. 26.True or false: a plastic comb is not needed for the static comb. (a) True (b) False
27. 27.⚖️ 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) the same hair (c) number of rubs (d) the same comb
28. 28.True or false: a thin water stream does not move to a charged comb. (a) True (b) False
29. 29.🔍 Which is the odd one out? (a) a pebble (b) tiny paper bits (c) a heavy book (d) a brick
30. 30.⚡ Which of these jumps to a charged comb? (a) a steel spoon (b) a brick (c) thermocol bits (d) a pebble
31. 31.⚡ A rubbed comb is held near thermocol bits. What happens? (a) jumps to the comb (b) does not move
32. 32.🧺 Which of these is needed for the static comb? (a) turmeric powder (b) dry hair (c) yeast (d) vinegar
33. 33.🧺 Do we need a mirror for the static comb? (a) not needed (b) needed
34. 34.🛟 There is lightning outside. Where is it safest to be? (a) in an open field (b) on a rooftop (c) indoors (d) under a tall tree
35. 35.⚡ A rubbed comb is held near dry hair. What happens? (a) jumps to the comb (b) does not move
36. 36.⚡ Which of these does not move to a charged comb? (a) a thin water stream (b) puffed rice (c) dry hair (d) a heavy book
37. 37.🧺 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
38. 38.🧺 Which of these is not needed for the static comb? (a) dry hair (b) a magnet (c) a plastic comb (d) a balloon
39. 39.🧺 Do we need tiny paper bits for the static comb? (a) not needed (b) needed
40. 40.🔮 Predict: you rub a balloon on dry hair and hold it on a wall. What happens? (a) it bursts at once (b) it sticks for a while (c) it falls straight down (d) it turns into water

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