Static Electricity Experiment Worksheet

Science experiments lesson 21: Static electricity: comb and paper bits · Set 25 · 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.True or false: a plastic comb is needed for the static comb. (a) True (b) False
2. 2.🔮 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 bursts at once (d) it turns into water
3. 3.True or false: tiny paper bits is needed for the static comb. (a) False (b) True
4. 4.True or false: thermocol bits does not move to a charged comb. (a) True (b) False
5. 5.⚡ Why does the comb trick work best on a dry day? (a) wet hair is magnetic (b) damp air leaks charge (c) water adds charge (d) dry days are noisy
6. 6.⚡ Why does the rubbed comb pull the paper bits? (a) it has static charge (b) it is sticky (c) it is hot (d) it is a magnet
7. 7.🔍 Which is the odd one out? (a) a heavy book (b) tiny paper bits (c) thermocol bits (d) puffed rice
8. 8.🔮 Predict: a charged comb is held near a thin stream of tap water. What happens? (a) the water freezes (b) the stream bends (c) nothing at all (d) the water stops
9. 9.⚡ A rubbed comb is held near a steel spoon. What happens? (a) jumps to the comb (b) does not move
10. 10.🧺 Which of these is not needed for the static comb? (a) a balloon (b) turmeric powder (c) tiny paper bits (d) a plastic comb
11. 11.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? Which of these is what we measure? (a) the same comb (b) distance to the paper (c) paper bits picked up (d) the paper bit size
12. 12.True or false: dry hair is not needed for the static comb. (a) False (b) True
13. 13.⚖️ 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) distance to the paper (c) the paper bit size (d) the same comb
14. 14.True or false: a magnet is not needed for the static comb. (a) True (b) False
15. 15.🧺 Do we need a mirror for the static comb? (a) needed (b) not needed
16. 16.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) turmeric powder (b) a balloon (c) a plastic comb (d) tiny paper bits
17. 17.🔮 Predict: you wet the comb before trying again. What happens? (a) it hardly works (b) it works better (c) it lights up (d) it becomes a magnet
18. 18.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) a battery cell (b) a plastic comb (c) tiny paper bits (d) a balloon
19. 19.⚡ A rubbed comb is held near a pebble. What happens? (a) jumps to the comb (b) does not move
20. 20.⚖️ 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 keep it the same (c) we change it
21. 21.🧺 Which of these is needed for the static comb? (a) turmeric powder (b) a plastic comb (c) a magnet (d) a battery cell
22. 22.🧺 Do we need yeast for the static comb? (a) needed (b) not needed
23. 23.🧺 Which of these is needed for the static comb? (a) a mirror (b) vinegar (c) turmeric powder (d) tiny paper bits
24. 24.⚖️ 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) False (b) True
25. 25.⚡ Which of these does not move to a charged comb? (a) a heavy book (b) tiny paper bits (c) a thin water stream (d) thermocol bits
26. 26.⚡ Which of these jumps to a charged comb? (a) a brick (b) a steel spoon (c) a heavy book (d) tiny paper bits
27. 27.True or false: tiny paper bits is not needed for the static comb. (a) False (b) True
28. 28.🧺 Do we need tiny paper bits for the static comb? (a) not needed (b) needed
29. 29.True or false: tiny paper bits does not move to a charged comb. (a) True (b) False
30. 30.🧺 Which of these is not needed for the static comb? (a) yeast (b) dry hair (c) a plastic comb (d) a balloon
31. 31.⚡ You comb dry hair and hold the comb near tiny paper bits. What happens? (a) the bits jump to it (b) nothing happens (c) they turn blue (d) they turn wet
32. 32.True or false: a plastic comb is not needed for the static comb. (a) False (b) True
33. 33.True or false: vinegar is needed for the static comb. (a) True (b) False
34. 34.⚖️ 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
35. 35.⚡ Which of these does not move to a charged comb? (a) dry hair (b) tiny paper bits (c) puffed rice (d) a steel spoon
36. 36.⚖️ 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 paper bit size
37. 37.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? What do we do with “number of rubs”? (a) we keep it the same (b) we measure it (c) we change it
38. 38.🔍 Which is the odd one out? (a) dry hair (b) a steel spoon (c) a pebble (d) a heavy book
39. 39.⚖️ 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
40. 40.⚡ Which of these jumps to a charged comb? (a) a brick (b) a heavy book (c) thermocol bits (d) a steel spoon

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