Static Electricity Experiment Worksheet

Science experiments lesson 21: Static electricity: comb and paper bits · Set 755 · 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.⚡ A rubbed comb is held near a brick. What happens? (a) does not move (b) jumps to the comb
2. 2.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? What do we do with “the paper bit size”? (a) we measure it (b) we change it (c) we keep it the same
3. 3.⚡ Which of these does not move to a charged comb? (a) a thin water stream (b) dry hair (c) a steel spoon (d) puffed rice
4. 4.⚖️ 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) the same comb
5. 5.⚡ Why does the comb trick work best on a dry day? (a) dry days are noisy (b) damp air leaks charge (c) wet hair is magnetic (d) water adds charge
6. 6.🔮 Predict: you rub a balloon on dry hair and hold it on a wall. What happens? (a) it bursts at once (b) it falls straight down (c) it turns into water (d) it sticks for a while
7. 7.⚖️ 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 comb (b) paper bits picked up (c) number of rubs (d) the paper bit size
8. 8.🧺 Do we need yeast for the static comb? (a) not needed (b) needed
9. 9.True or false: yeast is needed for the static comb. (a) False (b) True
10. 10.True or false: a steel spoon jumps to a charged comb. (a) False (b) True
11. 11.⚡ Which of these does not move to a charged comb? (a) a thin water stream (b) dry hair (c) a pebble (d) thermocol bits
12. 12.🔍 Which is the odd one out? (a) dry hair (b) a thin water stream (c) tiny paper bits (d) a heavy book
13. 13.⚡ Which of these jumps to a charged comb? (a) a heavy book (b) a steel spoon (c) tiny paper bits (d) a brick
14. 14.⚡ A rubbed comb is held near a thin water stream. What happens? (a) does not move (b) jumps to the comb
15. 15.True or false: dry hair does not move to a charged comb. (a) False (b) True
16. 16.⚖️ 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
17. 17.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? What do we do with “the same comb”? (a) we measure it (b) we change it (c) we keep it the same
18. 18.⚡ Which big natural spark is caused by static electricity? (a) lightning (b) dew (c) the wind (d) a rainbow
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) True (b) False
20. 20.True or false: vinegar is needed for the static comb. (a) True (b) False
21. 21.🔍 Which is the odd one out? (a) a steel spoon (b) dry hair (c) tiny paper bits (d) thermocol bits
22. 22.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) tiny paper bits (b) a plastic comb (c) a balloon (d) turmeric powder
23. 23.⚡ A rubbed comb is held near a heavy book. What happens? (a) jumps to the comb (b) does not move
24. 24.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) dry hair (b) a plastic comb (c) tiny paper bits (d) a magnet
25. 25.🧺 Do we need a balloon for the static comb? (a) needed (b) not needed
26. 26.⚖️ 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
27. 27.True or false: a balloon is needed for the static comb. (a) True (b) False
28. 28.🔍 Which is the odd one out? (a) a brick (b) a thin water stream (c) a pebble (d) a steel spoon
29. 29.⚖️ 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 same comb (c) number of rubs
30. 30.⚖️ 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
31. 31.🧺 Which of these is not needed for the static comb? (a) a plastic comb (b) a balloon (c) a magnet (d) dry hair
32. 32.⚡ Which of these does not move to a charged comb? (a) puffed rice (b) a brick (c) a thin water stream (d) dry hair
33. 33.🔮 Predict: you wet the comb before trying again. What happens? (a) it works better (b) it lights up (c) it becomes a magnet (d) it hardly works
34. 34.🧺 Which of these is needed for the static comb? (a) vinegar (b) a battery cell (c) a magnet (d) a balloon
35. 35.🛟 There is lightning outside. Where is it safest to be? (a) in an open field (b) on a rooftop (c) under a tall tree (d) indoors
36. 36.🧺 Do we need a plastic comb for the static comb? (a) needed (b) not needed
37. 37.🛟 Static from a comb is safe. Which electricity must children never play with? (a) a rubbed plastic comb (b) plug points at home (c) a rubbed balloon (d) paper bits on a comb
38. 38.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) tiny paper bits (b) a plastic comb (c) a balloon (d) yeast
39. 39.⚡ A rubbed comb is held near a steel spoon. What happens? (a) jumps to the comb (b) does not move
40. 40.🧺 Do we need a battery cell for the static comb? (a) not needed (b) needed

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