Static Electricity Experiment Worksheet

Science experiments lesson 21: Static electricity: comb and paper bits · Set 679 · 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.⚡ You comb dry hair and hold the comb near tiny paper bits. What happens? (a) they turn blue (b) the bits jump to it (c) they turn wet (d) nothing happens
2. 2.🔮 Predict: you rub a balloon on dry hair and hold it on a wall. What happens? (a) it bursts at once (b) it turns into water (c) it falls straight down (d) it sticks for a while
3. 3.⚡ A rubbed comb is held near a thin water stream. What happens? (a) does not move (b) jumps to the comb
4. 4.⚖️ 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 paper bit size (d) paper bits picked up
5. 5.🛟 There is lightning outside. Where is it safest to be? (a) under a tall tree (b) in an open field (c) indoors (d) on a rooftop
6. 6.True or false: a brick jumps to a charged comb. (a) False (b) True
7. 7.🔮 Predict: a charged comb is held near a thin stream of tap water. What happens? (a) the water freezes (b) the water stops (c) nothing at all (d) the stream bends
8. 8.True or false: a brick does not move to a charged comb. (a) False (b) True
9. 9.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? What do we do with “the same hair”? (a) we measure it (b) we keep it the same (c) we change it
10. 10.🧺 Which of these is not needed for the static comb? (a) a balloon (b) vinegar (c) a plastic comb (d) dry hair
11. 11.⚖️ 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) True (b) False
12. 12.⚖️ 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
13. 13.🔍 Which is the odd one out? (a) a thin water stream (b) a steel spoon (c) a pebble (d) a brick
14. 14.True or false: a plastic comb is needed for the static comb. (a) True (b) False
15. 15.🧺 Do we need a battery cell for the static comb? (a) needed (b) not needed
16. 16.⚡ Which of these jumps to a charged comb? (a) a heavy book (b) a thin water stream (c) a brick (d) a pebble
17. 17.⚡ A rubbed comb is held near puffed rice. What happens? (a) jumps to the comb (b) does not move
18. 18.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? What do we do with “number of rubs”? (a) we change it (b) we measure it (c) we keep it the same
19. 19.🧺 Which of these is not needed for the static comb? (a) dry hair (b) yeast (c) tiny paper bits (d) a balloon
20. 20.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? Which of these is the one thing we change? (a) number of rubs (b) paper bits picked up (c) the same hair (d) the paper bit size
21. 21.🧺 Do we need vinegar for the static comb? (a) not needed (b) needed
22. 22.🔍 Which is the odd one out? (a) a steel spoon (b) thermocol bits (c) a pebble (d) a heavy book
23. 23.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) a battery cell (b) dry hair (c) a plastic comb (d) tiny paper bits
24. 24.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? True or false: the same comb is what we measure. (a) False (b) True
25. 25.⚡ A rubbed comb is held near a heavy book. What happens? (a) jumps to the comb (b) does not move
26. 26.⚡ A rubbed comb is held near thermocol bits. What happens? (a) does not move (b) jumps to the comb
27. 27.True or false: a mirror is needed for the static comb. (a) True (b) False
28. 28.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) a plastic comb (b) turmeric powder (c) a balloon (d) dry hair
29. 29.🧺 Do we need a magnet for the static comb? (a) needed (b) not needed
30. 30.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? What do we do with “the same comb”? (a) we change it (b) we keep it the same (c) we measure it
31. 31.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) tiny paper bits (b) vinegar (c) a balloon (d) dry hair
32. 32.⚡ A rubbed comb is held near tiny paper bits. What happens? (a) jumps to the comb (b) does not move
33. 33.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) a plastic comb (b) dry hair (c) a magnet (d) a balloon
34. 34.⚡ Which of these jumps to a charged comb? (a) tiny paper bits (b) a pebble (c) a steel spoon (d) a brick
35. 35.🧺 Which of these is not needed for the static comb? (a) a mirror (b) dry hair (c) tiny paper bits (d) a plastic comb
36. 36.🧺 Do we need tiny paper bits 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 kept the same? (a) the same hair (b) paper bits picked up (c) number of rubs
38. 38.🔍 Which is the odd one out? (a) a brick (b) a heavy book (c) a steel spoon (d) puffed rice
39. 39.True or false: turmeric powder is needed for the static comb. (a) True (b) False
40. 40.🔍 Which is the odd one out? (a) a thin water stream (b) a brick (c) thermocol bits (d) dry hair

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