Static Electricity Experiment Worksheet

Science experiments lesson 21: Static electricity: comb and paper bits · Set 678 · 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) vinegar (b) a balloon (c) yeast (d) a mirror
2. 2.🧺 Do we need vinegar for the static comb? (a) needed (b) not needed
3. 3.⚡ 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
4. 4.📘 Rubbing moves tiny charges. What do we call the charge that builds up? (a) magnetism (b) gravity (c) sunlight (d) static electricity
5. 5.True or false: a mirror is not needed for the static comb. (a) True (b) False
6. 6.🧺 Which of these is not needed for the static comb? (a) tiny paper bits (b) dry hair (c) a magnet (d) a balloon
7. 7.⚡ A rubbed comb is held near tiny paper bits. 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 kept the same? (a) paper bits picked up (b) the paper bit size (c) number of rubs
9. 9.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) turmeric powder (b) a plastic comb (c) dry hair (d) tiny paper bits
10. 10.True or false: a thin water stream jumps to a charged comb. (a) False (b) True
11. 11.⚡ Why does the rubbed comb pull the paper bits? (a) it is a magnet (b) it is hot (c) it is sticky (d) it has static charge
12. 12.🧺 Which of these is not needed for the static comb? (a) dry hair (b) tiny paper bits (c) a plastic comb (d) a battery cell
13. 13.🛟 Static from a comb is safe. Which electricity must children never play with? (a) paper bits on a comb (b) a rubbed balloon (c) a rubbed plastic comb (d) plug points at home
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) True (b) False
15. 15.True or false: a magnet is not needed for the static comb. (a) True (b) False
16. 16.🔮 Predict: you wet the comb before trying again. What happens? (a) it becomes a magnet (b) it hardly works (c) it lights up (d) it works better
17. 17.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? Which of these is the one thing we change? (a) paper bits picked up (b) number of rubs (c) the paper bit size (d) the same hair
18. 18.🧺 Do we need yeast for the static comb? (a) not needed (b) needed
19. 19.⚡ A rubbed comb is held near a steel spoon. What happens? (a) does not move (b) jumps to the comb
20. 20.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) a plastic comb (b) yeast (c) a balloon (d) tiny paper bits
21. 21.🛟 There is lightning outside. Where is it safest to be? (a) on a rooftop (b) in an open field (c) under a tall tree (d) indoors
22. 22.🔮 Predict: you rub a balloon on dry hair and hold it on a wall. What happens? (a) it sticks for a while (b) it falls straight down (c) it turns into water (d) it bursts at once
23. 23.⚡ Which big natural spark is caused by static electricity? (a) a rainbow (b) lightning (c) the wind (d) dew
24. 24.🧺 Do we need a plastic comb for the static comb? (a) not needed (b) needed
25. 25.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) vinegar (b) a plastic comb (c) dry hair (d) a balloon
26. 26.True or false: yeast is needed for the static comb. (a) True (b) False
27. 27.🔍 Which is the odd one out? (a) puffed rice (b) a steel spoon (c) a heavy book (d) a pebble
28. 28.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? True or false: the paper bit size is what we measure. (a) True (b) False
29. 29.True or false: a pebble does not move to a charged comb. (a) True (b) False
30. 30.🧺 Which of these is needed for the static comb? (a) yeast (b) a battery cell (c) a plastic comb (d) turmeric powder
31. 31.⚖️ 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) distance to the paper (c) number of rubs
32. 32.⚡ Which of these jumps to a charged comb? (a) a steel spoon (b) a heavy book (c) a brick (d) tiny paper bits
33. 33.⚖️ 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
34. 34.True or false: vinegar is needed for the static comb. (a) False (b) True
35. 35.⚡ A rubbed comb is held near a pebble. What happens? (a) jumps to the comb (b) does not move
36. 36.🧺 Do we need tiny paper bits for the static comb? (a) needed (b) not needed
37. 37.True or false: a battery cell is not needed for the static comb. (a) True (b) False
38. 38.🧺 Which of these is needed for the static comb? (a) a mirror (b) turmeric powder (c) yeast (d) dry hair
39. 39.⚖️ 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) True (b) False
40. 40.True or false: dry hair jumps to a charged comb. (a) True (b) False

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