Static Electricity Experiment Worksheet

Science experiments lesson 21: Static electricity: comb and paper bits · Set 94 · 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 of these is needed for the static comb? (a) turmeric powder (b) a magnet (c) dry hair (d) a mirror
2. 2.True or false: a plastic comb is needed for the static comb. (a) False (b) True
3. 3.True or false: a brick jumps to a charged comb. (a) False (b) True
4. 4.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? Which of these is what we measure? (a) paper bits picked up (b) the paper bit size (c) the same comb (d) the same hair
5. 5.🔍 Which is the odd one out? (a) thermocol bits (b) a brick (c) tiny paper bits (d) puffed rice
6. 6.⚡ Which big natural spark is caused by static electricity? (a) dew (b) the wind (c) a rainbow (d) lightning
7. 7.True or false: dry hair does not move to a charged comb. (a) True (b) False
8. 8.🧺 Which of these is not needed for the static comb? (a) a plastic comb (b) vinegar (c) a balloon (d) tiny paper bits
9. 9.⚡ Why does the comb trick work best on a dry day? (a) wet hair is magnetic (b) dry days are noisy (c) damp air leaks charge (d) water adds charge
10. 10.🔍 Which is the odd one out? (a) puffed rice (b) tiny paper bits (c) a steel spoon (d) a thin water stream
11. 11.🔍 Which is the odd one out? (a) a pebble (b) a heavy book (c) a steel spoon (d) tiny paper bits
12. 12.🔮 Predict: you rub a balloon on dry hair and hold it on a wall. What happens? (a) it falls straight down (b) it sticks for a while (c) it turns into water (d) it bursts at once
13. 13.True or false: vinegar is needed for the static comb. (a) False (b) True
14. 14.📘 Rubbing moves tiny charges. What do we call the charge that builds up? (a) magnetism (b) sunlight (c) gravity (d) static electricity
15. 15.⚖️ 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 change it (c) we keep it the same
16. 16.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? True or false: the same comb is kept the same. (a) True (b) False
17. 17.🧺 Do we need a balloon for the static comb? (a) needed (b) not needed
18. 18.🧺 Which of these is needed for the static comb? (a) turmeric powder (b) vinegar (c) yeast (d) a plastic comb
19. 19.⚖️ 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
20. 20.⚖️ 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
21. 21.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) vinegar (b) tiny paper bits (c) dry hair (d) a balloon
22. 22.⚡ A rubbed comb is held near a heavy book. What happens? (a) does not move (b) jumps to the comb
23. 23.⚖️ 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) paper bits picked up (c) number of rubs (d) the same comb
24. 24.⚡ Which of these jumps to a charged comb? (a) thermocol bits (b) a heavy book (c) a steel spoon (d) a pebble
25. 25.🛟 Static from a comb is safe. Which electricity must children never play with? (a) a rubbed balloon (b) a rubbed plastic comb (c) plug points at home (d) paper bits on a comb
26. 26.⚡ A rubbed comb is held near dry hair. What happens? (a) jumps to the comb (b) does not move
27. 27.🔮 Predict: a charged comb is held near a thin stream of tap water. What happens? (a) the water freezes (b) the water stops (c) nothing at all (d) the stream bends
28. 28.True or false: a plastic comb is not needed for the static comb. (a) True (b) False
29. 29.🧺 Do we need dry hair for the static comb? (a) needed (b) not needed
30. 30.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? True or false: paper bits picked up is what we measure. (a) True (b) False
31. 31.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? What do we do with “distance to the paper”? (a) we keep it the same (b) we measure it (c) we change it
32. 32.⚖️ 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) True (b) False
33. 33.🔍 Which is the odd one out? (a) a heavy book (b) thermocol bits (c) a pebble (d) a brick
34. 34.🛟 There is lightning outside. Where is it safest to be? (a) on a rooftop (b) in an open field (c) indoors (d) under a tall tree
35. 35.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) a plastic comb (b) a mirror (c) a balloon (d) tiny paper bits
36. 36.⚡ Why does the rubbed comb pull the paper bits? (a) it is a magnet (b) it is hot (c) it has static charge (d) it is sticky
37. 37.True or false: yeast is not needed for the static comb. (a) False (b) True
38. 38.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) a plastic comb (b) tiny paper bits (c) yeast (d) dry hair
39. 39.⚡ A rubbed comb is held near tiny paper bits. What happens? (a) jumps to the comb (b) does not move
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) False (b) True

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