Static Electricity Experiment Worksheet

Science experiments lesson 21: Static electricity: comb and paper bits · Set 672 · 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.🔮 Predict: a charged comb is held near a thin stream of tap water. What happens? (a) the water freezes (b) nothing at all (c) the water stops (d) the stream bends
2. 2.⚡ Which of these jumps to a charged comb? (a) a brick (b) thermocol bits (c) a steel spoon (d) a pebble
3. 3.🧺 Which of these is not needed for the static comb? (a) a plastic comb (b) tiny paper bits (c) dry hair (d) yeast
4. 4.True or false: a magnet is needed for the static comb. (a) True (b) False
5. 5.⚡ Which big natural spark is caused by static electricity? (a) dew (b) lightning (c) a rainbow (d) the wind
6. 6.🧺 Do we need a balloon for the static comb? (a) needed (b) not needed
7. 7.⚡ A rubbed comb is held near dry hair. What happens? (a) does not move (b) jumps to the comb
8. 8.⚖️ 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) the same comb (c) number of rubs (d) the paper bit size
9. 9.⚖️ 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 paper bit size
10. 10.⚡ A rubbed comb is held near a steel spoon. What happens? (a) jumps to the comb (b) does not move
11. 11.🛟 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
12. 12.🛟 Static from a comb is safe. Which electricity must children never play with? (a) a rubbed plastic comb (b) paper bits on a comb (c) plug points at home (d) a rubbed balloon
13. 13.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? What do we do with “number of rubs”? (a) we measure it (b) we keep it the same (c) we change it
14. 14.True or false: a brick does not move to a charged comb. (a) True (b) False
15. 15.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) dry hair (b) a balloon (c) a battery cell (d) a plastic comb
16. 16.🧺 Do we need vinegar for the static comb? (a) not needed (b) needed
17. 17.🔍 Which is the odd one out? (a) a pebble (b) a steel spoon (c) tiny paper bits (d) a heavy book
18. 18.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? What do we do with “distance to the paper”? (a) we measure it (b) we change it (c) we keep it the same
19. 19.⚡ Which of these jumps to a charged comb? (a) a steel spoon (b) a heavy book (c) a brick (d) tiny paper bits
20. 20.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? True or false: paper bits picked up is the one thing we change. (a) True (b) False
21. 21.⚡ A rubbed comb is held near tiny paper bits. What happens? (a) jumps to the comb (b) does not move
22. 22.True or false: a battery cell is needed for the static comb. (a) True (b) False
23. 23.⚡ A rubbed comb is held near puffed rice. What happens? (a) does not move (b) jumps to the comb
24. 24.🔮 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
25. 25.True or false: vinegar is not needed for the static comb. (a) False (b) True
26. 26.True or false: dry hair 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? What do we do with “paper bits picked up”? (a) we measure it (b) we keep it the same (c) we change it
28. 28.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) a mirror (b) dry hair (c) tiny paper bits (d) a plastic comb
29. 29.⚖️ 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
30. 30.True or false: thermocol bits jumps to a charged comb. (a) True (b) False
31. 31.⚖️ 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) True (b) False
32. 32.🧺 Do we need a battery cell for the static comb? (a) not needed (b) needed
33. 33.True or false: tiny paper bits does not move to a charged comb. (a) True (b) False
34. 34.⚡ You comb dry hair and hold the comb near tiny paper bits. What happens? (a) the bits jump to it (b) they turn wet (c) they turn blue (d) nothing happens
35. 35.True or false: a plastic comb is not needed for the static comb. (a) True (b) False
36. 36.True or false: yeast is not needed for the static comb. (a) True (b) False
37. 37.🧺 Which of these is not needed for the static comb? (a) a plastic comb (b) tiny paper bits (c) a battery cell (d) dry hair
38. 38.🧺 Which of these is needed for the static comb? (a) vinegar (b) a battery cell (c) turmeric powder (d) a plastic comb
39. 39.🔮 Predict: you wet the comb before trying again. What happens? (a) it lights up (b) it works better (c) it becomes a magnet (d) it hardly works
40. 40.⚡ Which of these does not move to a charged comb? (a) dry hair (b) thermocol bits (c) a pebble (d) tiny paper bits

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