Static Electricity Experiment Worksheet

Science experiments lesson 21: Static electricity: comb and paper bits · Set 126 · 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? True or false: number of rubs is the one thing we change. (a) False (b) True
2. 2.⚡ Which of these does not move to a charged comb? (a) a heavy book (b) dry hair (c) a thin water stream (d) puffed rice
3. 3.True or false: a plastic comb is not needed for the static comb. (a) True (b) False
4. 4.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? What do we do with “the paper bit size”? (a) we keep it the same (b) we change it (c) we measure it
5. 5.True or false: a steel spoon jumps to a charged comb. (a) False (b) True
6. 6.🔮 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 sticks for a while (d) it turns into water
7. 7.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? What do we do with “number of rubs”? (a) we measure it (b) we keep it the same (c) we change it
8. 8.🧺 Which of these is needed for the static comb? (a) a balloon (b) yeast (c) vinegar (d) a mirror
9. 9.🔮 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
10. 10.True or false: a balloon is not needed for the static comb. (a) True (b) False
11. 11.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? True or false: paper bits picked up is the one thing we change. (a) False (b) True
12. 12.🧺 Which of these is not needed for the static comb? (a) a battery cell (b) tiny paper bits (c) a balloon (d) a plastic comb
13. 13.⚡ A rubbed comb is held near tiny paper bits. What happens? (a) does not move (b) jumps to the comb
14. 14.🧺 Do we need turmeric powder for the static comb? (a) not needed (b) needed
15. 15.True or false: tiny paper bits is not needed for the static comb. (a) False (b) True
16. 16.🔍 Which is the odd one out? (a) a brick (b) a heavy book (c) a pebble (d) tiny paper bits
17. 17.True or false: yeast is not needed for the static comb. (a) False (b) True
18. 18.⚡ Which of these does not move to a charged comb? (a) a thin water stream (b) a brick (c) tiny paper bits (d) dry hair
19. 19.⚡ Which of these jumps to a charged comb? (a) a heavy book (b) a thin water stream (c) a steel spoon (d) a brick
20. 20.🔮 Predict: a charged comb is held near a thin stream of tap water. What happens? (a) the stream bends (b) nothing at all (c) the water freezes (d) the water stops
21. 21.🛟 There is lightning outside. Where is it safest to be? (a) under a tall tree (b) on a rooftop (c) in an open field (d) indoors
22. 22.True or false: dry hair is not needed for the static comb. (a) True (b) False
23. 23.🔍 Which is the odd one out? (a) dry hair (b) a thin water stream (c) tiny paper bits (d) a heavy book
24. 24.🧺 Do we need a plastic comb for the static comb? (a) needed (b) not needed
25. 25.⚖️ 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) the same comb
26. 26.🧺 Do we need a battery cell for the static comb? (a) needed (b) not needed
27. 27.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? True or false: distance to the paper is kept the same. (a) True (b) False
28. 28.True or false: a thin water stream does not move to a charged comb. (a) False (b) True
29. 29.⚖️ 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) the paper bit size (c) the same hair (d) number of rubs
30. 30.⚡ Why does the comb trick work best on a dry day? (a) water adds charge (b) wet hair is magnetic (c) dry days are noisy (d) damp air leaks charge
31. 31.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) a plastic comb (b) a balloon (c) yeast (d) tiny paper bits
32. 32.⚡ A rubbed comb is held near a thin water stream. What happens? (a) does not move (b) jumps to the comb
33. 33.True or false: puffed rice jumps to a charged comb. (a) True (b) False
34. 34.🛟 Static from a comb is safe. Which electricity must children never play with? (a) paper bits on a comb (b) plug points at home (c) a rubbed balloon (d) a rubbed plastic comb
35. 35.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? Which of these is what we measure? (a) distance to the paper (b) the paper bit size (c) paper bits picked up (d) the same hair
36. 36.🧺 Which of these is needed for the static comb? (a) a magnet (b) a battery cell (c) a plastic comb (d) yeast
37. 37.🧺 Which of these is not needed for the static comb? (a) tiny paper bits (b) a plastic comb (c) a balloon (d) a magnet
38. 38.⚖️ 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
39. 39.🧺 Do we need dry hair for the static comb? (a) needed (b) not needed
40. 40.🔍 Which is the odd one out? (a) tiny paper bits (b) puffed rice (c) a thin water stream (d) a brick

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