Static Electricity Experiment Worksheet

Science experiments lesson 21: Static electricity: comb and paper bits · Set 829 · 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: 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 turns into water (d) it falls straight down
2. 2.True or false: a thin water stream jumps to a charged comb. (a) False (b) True
3. 3.⚡ A rubbed comb is held near tiny paper bits. What happens? (a) does not move (b) jumps to the comb
4. 4.True or false: a balloon is not needed for the static comb. (a) False (b) True
5. 5.🧺 Which of these is not needed for the static comb? (a) a plastic comb (b) dry hair (c) a magnet (d) a balloon
6. 6.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) a balloon (b) a plastic comb (c) dry hair (d) a battery cell
7. 7.True or false: a plastic comb is not needed for the static comb. (a) False (b) True
8. 8.True or false: vinegar is not needed for the static comb. (a) True (b) False
9. 9.⚖️ 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) distance to the paper (c) paper bits picked up
10. 10.⚡ A rubbed comb is held near puffed rice. What happens? (a) does not move (b) jumps to the comb
11. 11.⚖️ 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 change it (c) we measure it
12. 12.🧺 Do we need vinegar for the static comb? (a) not needed (b) needed
13. 13.🔮 Predict: a charged comb is held near a thin stream of tap water. What happens? (a) the stream bends (b) nothing at all (c) the water freezes (d) the water stops
14. 14.⚡ Which of these does not move to a charged comb? (a) a pebble (b) dry hair (c) puffed rice (d) tiny paper bits
15. 15.🧺 Which of these is not needed for the static comb? (a) tiny paper bits (b) dry hair (c) a plastic comb (d) a mirror
16. 16.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? Which of these is the one thing we change? (a) distance to the paper (b) number of rubs (c) the same hair (d) the same comb
17. 17.⚡ A rubbed comb is held near a heavy book. What happens? (a) jumps to the comb (b) does not move
18. 18.🧺 Do we need a plastic comb for the static comb? (a) not needed (b) needed
19. 19.⚖️ 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
20. 20.⚡ A rubbed comb is held near a thin water stream. What happens? (a) does not move (b) jumps to the comb
21. 21.🔍 Which is the odd one out? (a) a brick (b) dry hair (c) thermocol bits (d) tiny paper bits
22. 22.True or false: a steel spoon does not move to a charged comb. (a) True (b) False
23. 23.True or false: dry hair jumps to a charged comb. (a) True (b) False
24. 24.⚖️ 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
25. 25.🛟 There is lightning outside. Where is it safest to be? (a) under a tall tree (b) indoors (c) in an open field (d) on a rooftop
26. 26.⚖️ 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
27. 27.True or false: yeast is needed for the static comb. (a) False (b) True
28. 28.🧺 Which of these is needed for the static comb? (a) turmeric powder (b) a battery cell (c) a mirror (d) a plastic comb
29. 29.⚡ Which big natural spark is caused by static electricity? (a) a rainbow (b) lightning (c) dew (d) the wind
30. 30.True or false: tiny paper bits does not move to a charged comb. (a) True (b) False
31. 31.⚡ A rubbed comb is held near a steel spoon. What happens? (a) does not move (b) jumps to the comb
32. 32.⚡ Why does the comb trick work best on a dry day? (a) damp air leaks charge (b) wet hair is magnetic (c) dry days are noisy (d) water adds charge
33. 33.🛟 Static from a comb is safe. Which electricity must children never play with? (a) a rubbed plastic comb (b) a rubbed balloon (c) paper bits on a comb (d) plug points at home
34. 34.True or false: a pebble jumps to a charged comb. (a) True (b) False
35. 35.True or false: tiny paper bits jumps to a charged comb. (a) False (b) True
36. 36.True or false: puffed rice does not move to a charged comb. (a) True (b) False
37. 37.🔍 Which is the odd one out? (a) a pebble (b) a heavy book (c) tiny paper bits (d) a brick
38. 38.🔮 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
39. 39.⚡ A rubbed comb is held near dry hair. What happens? (a) does not move (b) jumps to the comb
40. 40.True or false: a steel spoon jumps to a charged comb. (a) False (b) True

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