Static Electricity Experiment Worksheet

Science experiments lesson 21: Static electricity: comb and paper bits · Set 281 · 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 what we measure? (a) paper bits picked up (b) distance to the paper (c) the paper bit size (d) number of rubs
2. 2.⚖️ 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
3. 3.🔮 Predict: you rub a balloon on dry hair and hold it on a wall. What happens? (a) it falls straight down (b) it bursts at once (c) it turns into water (d) it sticks for a while
4. 4.⚡ Which big natural spark is caused by static electricity? (a) lightning (b) the wind (c) dew (d) a rainbow
5. 5.⚖️ 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) paper bits picked up (c) distance to the paper
6. 6.⚡ Which of these jumps to a charged comb? (a) a brick (b) puffed rice (c) a heavy book (d) a pebble
7. 7.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) a battery cell (b) a plastic comb (c) dry hair (d) tiny paper bits
8. 8.🛟 Static from a comb is safe. Which electricity must children never play with? (a) a rubbed balloon (b) paper bits on a comb (c) plug points at home (d) a rubbed plastic comb
9. 9.⚖️ 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 measure it (c) we keep it the same
10. 10.🧺 Do we need yeast for the static comb? (a) not needed (b) needed
11. 11.True or false: a brick does not move to a charged comb. (a) False (b) True
12. 12.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) a magnet (b) a balloon (c) dry hair (d) a plastic comb
13. 13.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? True or false: distance to the paper is what we measure. (a) True (b) False
14. 14.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) dry hair (b) a balloon (c) tiny paper bits (d) vinegar
15. 15.🧺 Do we need turmeric powder for the static comb? (a) not needed (b) needed
16. 16.⚡ Why does the comb trick work best on a dry day? (a) water adds charge (b) damp air leaks charge (c) wet hair is magnetic (d) dry days are noisy
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) the same hair (b) distance to the paper (c) the same comb (d) number of rubs
18. 18.⚖️ 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
19. 19.True or false: a battery cell is not needed for the static comb. (a) True (b) False
20. 20.🔍 Which is the odd one out? (a) dry hair (b) a thin water stream (c) tiny paper bits (d) a heavy book
21. 21.⚡ Which of these jumps to a charged comb? (a) a heavy book (b) a pebble (c) tiny paper bits (d) a brick
22. 22.🧺 Do we need tiny paper bits for the static comb? (a) not needed (b) needed
23. 23.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? True or false: the same comb is what we measure. (a) False (b) True
24. 24.True or false: tiny paper bits does not move to a charged comb. (a) True (b) False
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.⚡ A rubbed comb is held near puffed rice. What happens? (a) jumps to the comb (b) does not move
27. 27.🧺 Do we need a mirror for the static comb? (a) needed (b) not needed
28. 28.⚡ A rubbed comb is held near a brick. What happens? (a) does not move (b) jumps to the comb
29. 29.⚡ A rubbed comb is held near a pebble. What happens? (a) jumps to the comb (b) does not move
30. 30.⚡ A rubbed comb is held near thermocol bits. What happens? (a) jumps to the comb (b) does not move
31. 31.🧺 Which of these is needed for the static comb? (a) a magnet (b) vinegar (c) dry hair (d) a mirror
32. 32.⚖️ 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) the same comb
33. 33.🧺 Which of these is needed for the static comb? (a) a battery cell (b) turmeric powder (c) a mirror (d) a balloon
34. 34.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) a mirror (b) a balloon (c) a plastic comb (d) dry hair
35. 35.🔍 Which is the odd one out? (a) a pebble (b) a steel spoon (c) a thin water stream (d) a heavy book
36. 36.True or false: yeast is needed for the static comb. (a) False (b) True
37. 37.🧺 Do we need vinegar for the static comb? (a) needed (b) not needed
38. 38.🧺 Which of these is not needed for the static comb? (a) a plastic comb (b) dry hair (c) tiny paper bits (d) vinegar
39. 39.True or false: dry hair is needed for the static comb. (a) False (b) True
40. 40.⚡ You comb dry hair and hold the comb near tiny paper bits. What happens? (a) they turn wet (b) nothing happens (c) they turn blue (d) the bits jump to it

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