Static Electricity Experiment Worksheet

Science experiments lesson 21: Static electricity: comb and paper bits · Set 337 · 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.🧺 Which of these is needed for the static comb? (a) a mirror (b) a plastic comb (c) yeast (d) vinegar
2. 2.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? Which of these is what we measure? (a) number of rubs (b) the paper bit size (c) paper bits picked up (d) distance to the paper
3. 3.⚖️ 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 keep it the same (c) we measure it
4. 4.🧺 Which of these is needed for the static comb? (a) vinegar (b) a magnet (c) a battery cell (d) tiny paper bits
5. 5.⚡ Which of these does not move to a charged comb? (a) tiny paper bits (b) thermocol bits (c) puffed rice (d) a pebble
6. 6.True or false: dry hair jumps to a charged comb. (a) True (b) False
7. 7.🧺 Do we need turmeric powder for the static comb? (a) not needed (b) needed
8. 8.⚖️ 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
9. 9.True or false: a plastic comb is not needed for the static comb. (a) False (b) True
10. 10.⚡ 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
11. 11.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) tiny paper bits (b) a magnet (c) a plastic comb (d) dry hair
12. 12.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? What do we do with “the same hair”? (a) we keep it the same (b) we change it (c) we measure it
13. 13.True or false: dry hair is needed for the static comb. (a) False (b) True
14. 14.⚡ Which of these jumps to a charged comb? (a) a steel spoon (b) puffed rice (c) a heavy book (d) a pebble
15. 15.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) a battery cell (b) a plastic comb (c) a balloon (d) tiny paper bits
16. 16.🛟 Static from a comb is safe. Which electricity must children never play with? (a) a rubbed plastic comb (b) plug points at home (c) paper bits on a comb (d) a rubbed balloon
17. 17.True or false: a balloon is not needed for the static comb. (a) False (b) True
18. 18.⚡ A rubbed comb is held near puffed rice. What happens? (a) does not move (b) jumps to the comb
19. 19.🔍 Which is the odd one out? (a) a thin water stream (b) dry hair (c) tiny paper bits (d) a pebble
20. 20.⚖️ 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
21. 21.True or false: dry hair is not needed for the static comb. (a) True (b) False
22. 22.⚡ A rubbed comb is held near a steel spoon. What happens? (a) jumps to the comb (b) does not move
23. 23.True or false: a plastic comb is needed for the static comb. (a) False (b) True
24. 24.⚡ Which of these jumps to a charged comb? (a) a brick (b) a steel spoon (c) tiny paper bits (d) a pebble
25. 25.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? True or false: number of rubs is kept the same. (a) True (b) False
26. 26.True or false: yeast is needed for the static comb. (a) True (b) False
27. 27.🔮 Predict: you wet the comb before trying again. What happens? (a) it becomes a magnet (b) it lights up (c) it hardly works (d) it works better
28. 28.🧺 Do we need a plastic comb for the static comb? (a) needed (b) not needed
29. 29.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) turmeric powder (b) a plastic comb (c) a balloon (d) dry hair
30. 30.🧺 Do we need yeast for the static comb? (a) not needed (b) needed
31. 31.⚖️ 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 comb (d) the same hair
32. 32.⚡ Which of these does not move to a charged comb? (a) puffed rice (b) a thin water stream (c) a brick (d) tiny paper bits
33. 33.🔍 Which is the odd one out? (a) a heavy book (b) a pebble (c) a steel spoon (d) dry hair
34. 34.🧺 Which of these is not needed for the static comb? (a) a battery cell (b) a balloon (c) dry hair (d) tiny paper bits
35. 35.True or false: turmeric powder is needed for the static comb. (a) True (b) False
36. 36.🧺 Do we need a mirror for the static comb? (a) needed (b) not needed
37. 37.True or false: a battery cell is needed for the static comb. (a) False (b) True
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 measure it (c) we keep it the same
39. 39.🔍 Which is the odd one out? (a) puffed rice (b) tiny paper bits (c) dry hair (d) a heavy book
40. 40.True or false: a steel spoon does not move to a charged comb. (a) False (b) True

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