Static Electricity Experiment Worksheet

Science experiments lesson 21: Static electricity: comb and paper bits · Set 673 · 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.⚡ 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
2. 2.🔮 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
3. 3.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) a balloon (b) tiny paper bits (c) turmeric powder (d) dry hair
4. 4.🧺 Which of these is needed for the static comb? (a) a magnet (b) dry hair (c) a mirror (d) turmeric powder
5. 5.🧺 Do we need a mirror for the static comb? (a) needed (b) not needed
6. 6.⚡ A rubbed comb is held near a thin water stream. What happens? (a) jumps to the comb (b) does not move
7. 7.🧺 Do we need a plastic comb for the static comb? (a) not needed (b) needed
8. 8.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) a balloon (b) a magnet (c) tiny paper bits (d) a plastic comb
9. 9.⚡ A rubbed comb is held near dry hair. What happens? (a) does not move (b) jumps to the comb
10. 10.🧺 Do we need a magnet for the static comb? (a) not needed (b) needed
11. 11.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? What do we do with “paper bits picked up”? (a) we measure it (b) we change it (c) we keep it the same
12. 12.True or false: a battery cell is needed for the static comb. (a) False (b) True
13. 13.🛟 There is lightning outside. Where is it safest to be? (a) in an open field (b) on a rooftop (c) indoors (d) under a tall tree
14. 14.⚡ Which big natural spark is caused by static electricity? (a) a rainbow (b) dew (c) lightning (d) the wind
15. 15.True or false: yeast is not needed for the static comb. (a) True (b) False
16. 16.⚡ A rubbed comb is held near puffed rice. What happens? (a) jumps to the comb (b) does not move
17. 17.🛟 Static from a comb is safe. Which electricity must children never play with? (a) a rubbed plastic comb (b) paper bits on a comb (c) plug points at home (d) a rubbed balloon
18. 18.True or false: a plastic comb is needed for the static comb. (a) False (b) True
19. 19.🔮 Predict: a charged comb is held near a thin stream of tap water. What happens? (a) nothing at all (b) the water freezes (c) the water stops (d) the stream bends
20. 20.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) a battery cell (b) a balloon (c) tiny paper bits (d) a plastic comb
21. 21.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) a balloon (b) tiny paper bits (c) a mirror (d) dry hair
22. 22.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? Which of these is the one thing we change? (a) the paper bit size (b) number of rubs (c) the same comb (d) paper bits picked up
23. 23.⚡ A rubbed comb is held near a steel spoon. What happens? (a) does not move (b) jumps to the comb
24. 24.🔍 Which is the odd one out? (a) thermocol bits (b) tiny paper bits (c) a brick (d) puffed rice
25. 25.⚡ A rubbed comb is held near a pebble. What happens? (a) jumps to the comb (b) does not move
26. 26.⚖️ 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
27. 27.🧺 Which of these is needed for the static comb? (a) yeast (b) tiny paper bits (c) a mirror (d) vinegar
28. 28.🔮 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
29. 29.⚡ You comb dry hair and hold the comb near tiny paper bits. What happens? (a) nothing happens (b) they turn blue (c) the bits jump to it (d) they turn wet
30. 30.⚖️ 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) paper bits picked up (c) number of rubs
31. 31.⚡ Which of these does not move to a charged comb? (a) tiny paper bits (b) a thin water stream (c) a steel spoon (d) dry hair
32. 32.True or false: a plastic comb is not needed for the static comb. (a) False (b) True
33. 33.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? True or false: the same comb is the one thing we change. (a) True (b) False
34. 34.⚡ A rubbed comb is held near thermocol bits. What happens? (a) does not move (b) jumps to the comb
35. 35.⚖️ 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 keep it the same (c) we measure it
36. 36.True or false: a mirror is not needed for the static comb. (a) True (b) False
37. 37.True or false: turmeric powder is not needed for the static comb. (a) False (b) True
38. 38.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? Which of these is kept the same? (a) distance to the paper (b) paper bits picked up (c) number of rubs
39. 39.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) a balloon (b) a plastic comb (c) yeast (d) dry hair
40. 40.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? Which of these is what we measure? (a) the same hair (b) the same comb (c) number of rubs (d) paper bits picked up

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