Static Electricity Experiment Worksheet

Science experiments lesson 21: Static electricity: comb and paper bits · Set 257 · 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? Which of these is kept the same? (a) the paper bit size (b) paper bits picked up (c) number of rubs
2. 2.⚖️ 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
3. 3.⚡ A rubbed comb is held near thermocol bits. What happens? (a) does not move (b) jumps to the comb
4. 4.🛟 Static from a comb is safe. Which electricity must children never play with? (a) paper bits on a comb (b) a rubbed plastic comb (c) a rubbed balloon (d) plug points at home
5. 5.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) tiny paper bits (b) a balloon (c) vinegar (d) a plastic comb
6. 6.⚡ Which of these jumps to a charged comb? (a) a steel spoon (b) a brick (c) a pebble (d) thermocol bits
7. 7.⚡ A rubbed comb is held near a thin water stream. What happens? (a) does not move (b) jumps to the comb
8. 8.🛟 There is lightning outside. Where is it safest to be? (a) in an open field (b) under a tall tree (c) indoors (d) on a rooftop
9. 9.⚡ Which of these jumps to a charged comb? (a) a pebble (b) tiny paper bits (c) a brick (d) a steel spoon
10. 10.True or false: a brick jumps to a charged comb. (a) True (b) False
11. 11.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) a plastic comb (b) tiny paper bits (c) a battery cell (d) dry hair
12. 12.True or false: a magnet is needed for the static comb. (a) True (b) False
13. 13.⚡ You comb dry hair and hold the comb near tiny paper bits. What happens? (a) they turn wet (b) the bits jump to it (c) they turn blue (d) nothing happens
14. 14.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? True or false: number of rubs is kept the same. (a) False (b) True
15. 15.⚡ A rubbed comb is held near dry hair. What happens? (a) jumps to the comb (b) does not move
16. 16.True or false: a pebble jumps to a charged comb. (a) True (b) False
17. 17.🧺 Which of these is not needed for the static comb? (a) turmeric powder (b) dry hair (c) a plastic comb (d) a balloon
18. 18.True or false: vinegar is not needed for the static comb. (a) True (b) False
19. 19.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? True or false: the same comb is the one thing we change. (a) False (b) True
20. 20.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? Which of these is what we measure? (a) the paper bit size (b) number of rubs (c) paper bits picked up (d) the same hair
21. 21.🧺 Do we need a magnet for the static comb? (a) needed (b) not needed
22. 22.⚡ Why does the comb trick work best on a dry day? (a) wet hair is magnetic (b) water adds charge (c) dry days are noisy (d) damp air leaks charge
23. 23.True or false: a balloon is needed for the static comb. (a) True (b) False
24. 24.🧺 Which of these is not needed for the static comb? (a) a plastic comb (b) tiny paper bits (c) a mirror (d) dry hair
25. 25.🔮 Predict: you rub a balloon on dry hair and hold it on a wall. What happens? (a) it falls straight down (b) it turns into water (c) it sticks for a while (d) it bursts at once
26. 26.🧺 Do we need a battery cell for the static comb? (a) needed (b) not needed
27. 27.⚡ Which of these jumps to a charged comb? (a) a brick (b) a steel spoon (c) dry hair (d) a heavy book
28. 28.True or false: yeast is needed for the static comb. (a) True (b) False
29. 29.🔍 Which is the odd one out? (a) puffed rice (b) dry hair (c) tiny paper bits (d) a steel spoon
30. 30.🔍 Which is the odd one out? (a) a heavy book (b) a steel spoon (c) a brick (d) thermocol bits
31. 31.🔮 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
32. 32.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? True or false: the paper bit size is the one thing we change. (a) True (b) False
33. 33.🧺 Do we need a plastic comb for the static comb? (a) needed (b) not needed
34. 34.🔮 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
35. 35.⚡ Which of these does not move to a charged comb? (a) dry hair (b) a thin water stream (c) a pebble (d) thermocol bits
36. 36.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? What do we do with “the same hair”? (a) we change it (b) we keep it the same (c) we measure it
37. 37.⚡ A rubbed comb is held near a steel spoon. What happens? (a) does not move (b) jumps to the comb
38. 38.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? What do we do with “the paper bit size”? (a) we change it (b) we keep it the same (c) we measure it
39. 39.True or false: a plastic comb is needed for the static comb. (a) True (b) False
40. 40.⚖️ 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) distance to the paper

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