Static Electricity Experiment Worksheet

Science experiments lesson 21: Static electricity: comb and paper bits · Set 727 · 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 big natural spark is caused by static electricity? (a) the wind (b) dew (c) a rainbow (d) lightning
2. 2.🧺 Which of these is needed for the static comb? (a) vinegar (b) turmeric powder (c) a battery cell (d) dry hair
3. 3.🔮 Predict: you wet the comb before trying again. What happens? (a) it hardly works (b) it lights up (c) it works better (d) it becomes a magnet
4. 4.⚖️ 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
5. 5.🧺 Which of these is not needed for the static comb? (a) a balloon (b) dry hair (c) a mirror (d) tiny paper bits
6. 6.🧺 Which of these is not needed for the static comb? (a) a balloon (b) tiny paper bits (c) a plastic comb (d) turmeric powder
7. 7.🧺 Do we need dry hair for the static comb? (a) needed (b) not needed
8. 8.True or false: a heavy book does not move to a charged comb. (a) False (b) True
9. 9.🔍 Which is the odd one out? (a) a steel spoon (b) a brick (c) a pebble (d) a thin water stream
10. 10.🧺 Which of these is not needed for the static comb? (a) a plastic comb (b) a balloon (c) tiny paper bits (d) a battery cell
11. 11.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? True or false: the same comb is kept the same. (a) False (b) True
12. 12.🛟 Static from a comb is safe. Which electricity must children never play with? (a) a rubbed balloon (b) paper bits on a comb (c) a rubbed plastic comb (d) plug points at home
13. 13.⚖️ 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 paper bit size
14. 14.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) a plastic comb (b) yeast (c) dry hair (d) tiny paper bits
15. 15.🛟 There is lightning outside. Where is it safest to be? (a) under a tall tree (b) indoors (c) on a rooftop (d) in an open field
16. 16.🔍 Which is the odd one out? (a) puffed rice (b) thermocol bits (c) dry hair (d) a steel spoon
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.True or false: a brick does not move to a charged comb. (a) True (b) False
19. 19.🧺 Do we need vinegar for the static comb? (a) needed (b) not needed
20. 20.⚖️ 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
21. 21.⚡ You comb dry hair and hold the comb near tiny paper bits. What happens? (a) they turn wet (b) they turn blue (c) nothing happens (d) the bits jump to it
22. 22.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) a balloon (b) dry hair (c) tiny paper bits (d) a battery cell
23. 23.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? True or false: number of rubs is what we measure. (a) True (b) False
24. 24.⚡ Why does the comb trick work best on a dry day? (a) wet hair is magnetic (b) water adds charge (c) damp air leaks charge (d) dry days are noisy
25. 25.🔮 Predict: a charged comb is held near a thin stream of tap water. What happens? (a) the stream bends (b) the water stops (c) nothing at all (d) the water freezes
26. 26.True or false: a mirror is needed for the static comb. (a) True (b) False
27. 27.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? Which of these is the one thing we change? (a) distance to the paper (b) number of rubs (c) the same hair (d) paper bits picked up
28. 28.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? True or false: the same hair is kept the same. (a) True (b) False
29. 29.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) dry hair (b) a plastic comb (c) a balloon (d) a magnet
30. 30.🧺 Do we need a mirror for the static comb? (a) needed (b) not needed
31. 31.🧺 Which of these is needed for the static comb? (a) a magnet (b) vinegar (c) a plastic comb (d) a mirror
32. 32.True or false: tiny paper bits jumps to a charged comb. (a) True (b) False
33. 33.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) dry hair (b) a mirror (c) a plastic comb (d) a balloon
34. 34.⚡ Which of these does not move to a charged comb? (a) dry hair (b) thermocol bits (c) a thin water stream (d) a steel spoon
35. 35.⚡ Which of these jumps to a charged comb? (a) a heavy book (b) a brick (c) a pebble (d) a thin water stream
36. 36.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? Which of these is kept the same? (a) the same comb (b) number of rubs (c) paper bits picked up
37. 37.🧺 Do we need yeast for the static comb? (a) needed (b) not needed
38. 38.⚡ A rubbed comb is held near thermocol bits. What happens? (a) does not move (b) jumps to the comb
39. 39.True or false: dry hair is needed for the static comb. (a) False (b) True
40. 40.⚖️ 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

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