Static Electricity Experiment Worksheet

Science experiments lesson 21: Static electricity: comb and paper bits · Set 57 · 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.🔮 Predict: you rub a balloon on dry hair and hold it on a wall. What happens? (a) it turns into water (b) it falls straight down (c) it bursts at once (d) it sticks for a while
2. 2.⚡ A rubbed comb is held near puffed rice. What happens? (a) does not move (b) jumps to the comb
3. 3.True or false: thermocol bits jumps to a charged comb. (a) False (b) True
4. 4.True or false: tiny paper bits is not needed for the static comb. (a) True (b) False
5. 5.⚡ Why does the comb trick work best on a dry day? (a) wet hair is magnetic (b) dry days are noisy (c) water adds charge (d) damp air leaks charge
6. 6.⚡ Which of these does not move to a charged comb? (a) dry hair (b) tiny paper bits (c) a pebble (d) puffed rice
7. 7.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? True or false: the paper bit size is the one thing we change. (a) False (b) True
8. 8.🔍 Which is the odd one out? (a) a heavy book (b) a thin water stream (c) a pebble (d) a brick
9. 9.⚖️ 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 hair
10. 10.True or false: a plastic comb is not needed for the static comb. (a) False (b) True
11. 11.⚖️ 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 change it (c) we measure it
12. 12.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) a magnet (b) a plastic comb (c) tiny paper bits (d) dry hair
13. 13.⚖️ 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
14. 14.True or false: a mirror is not needed for the static comb. (a) False (b) True
15. 15.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) a plastic comb (b) a balloon (c) yeast (d) dry hair
16. 16.🔮 Predict: you wet the comb before trying again. What happens? (a) it hardly works (b) it becomes a magnet (c) it lights up (d) it works better
17. 17.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? True or false: paper bits picked up is kept the same. (a) True (b) False
18. 18.⚖️ 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) paper bits picked up (d) distance to the paper
19. 19.⚡ You comb dry hair and hold the comb near tiny paper bits. What happens? (a) nothing happens (b) they turn blue (c) they turn wet (d) the bits jump to it
20. 20.True or false: turmeric powder is not needed for the static comb. (a) False (b) True
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.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) a plastic comb (b) dry hair (c) a battery cell (d) a balloon
23. 23.🧺 Do we need turmeric powder for the static comb? (a) not needed (b) needed
24. 24.⚖️ 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
25. 25.🧺 Do we need vinegar for the static comb? (a) needed (b) not needed
26. 26.⚖️ 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
27. 27.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? True or false: distance to the paper is the one thing we change. (a) False (b) True
28. 28.True or false: a brick jumps to a charged comb. (a) True (b) False
29. 29.🧺 Which of these is not needed for the static comb? (a) vinegar (b) dry hair (c) a balloon (d) a plastic comb
30. 30.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? True or false: the paper bit size is kept the same. (a) True (b) False
31. 31.🔮 Predict: a charged comb is held near a thin stream of tap water. What happens? (a) nothing at all (b) the stream bends (c) the water freezes (d) the water stops
32. 32.🔍 Which is the odd one out? (a) a heavy book (b) thermocol bits (c) dry hair (d) a thin water stream
33. 33.🧺 Do we need tiny paper bits for the static comb? (a) not needed (b) needed
34. 34.True or false: tiny paper bits is needed for the static comb. (a) False (b) True
35. 35.⚖️ 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
36. 36.🧺 Which of these is not needed for the static comb? (a) dry hair (b) tiny paper bits (c) a mirror (d) a plastic comb
37. 37.⚡ A rubbed comb is held near dry hair. What happens? (a) jumps to the comb (b) does not move
38. 38.True or false: a battery cell is not needed for the static comb. (a) True (b) False
39. 39.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) dry hair (b) tiny paper bits (c) a mirror (d) a plastic comb
40. 40.True or false: vinegar is not needed for the static comb. (a) True (b) False

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