Static Electricity Experiment Worksheet

Science experiments lesson 21: Static electricity: comb and paper bits · Set 358 · 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.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) a plastic comb (b) dry hair (c) a balloon (d) a battery cell
2. 2.🔮 Predict: you wet the comb before trying again. What happens? (a) it works better (b) it becomes a magnet (c) it lights up (d) it hardly works
3. 3.⚡ Which of these jumps to a charged comb? (a) dry hair (b) a steel spoon (c) a pebble (d) a brick
4. 4.⚡ Why does the comb trick work best on a dry day? (a) damp air leaks charge (b) water adds charge (c) wet hair is magnetic (d) dry days are noisy
5. 5.🧺 Which of these is not needed for the static comb? (a) a balloon (b) a plastic comb (c) dry hair (d) turmeric powder
6. 6.📘 Rubbing moves tiny charges. What do we call the charge that builds up? (a) magnetism (b) static electricity (c) sunlight (d) gravity
7. 7.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) dry hair (b) tiny paper bits (c) a plastic comb (d) turmeric powder
8. 8.True or false: a steel spoon jumps to a charged comb. (a) False (b) True
9. 9.🛟 There is lightning outside. Where is it safest to be? (a) indoors (b) under a tall tree (c) on a rooftop (d) in an open field
10. 10.True or false: yeast is not needed for the static comb. (a) False (b) True
11. 11.⚡ A rubbed comb is held near a pebble. What happens? (a) jumps to the comb (b) does not move
12. 12.🛟 Static from a comb is safe. Which electricity must children never play with? (a) plug points at home (b) a rubbed balloon (c) paper bits on a comb (d) a rubbed plastic comb
13. 13.⚡ A rubbed comb is held near a heavy book. What happens? (a) does not move (b) jumps to the comb
14. 14.🧺 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
15. 15.🔍 Which is the odd one out? (a) a pebble (b) thermocol bits (c) dry hair (d) a thin water stream
16. 16.⚡ Which of these jumps to a charged comb? (a) tiny paper bits (b) a brick (c) a steel spoon (d) a heavy book
17. 17.⚖️ 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) number of rubs (c) paper bits picked up (d) the same comb
18. 18.True or false: a heavy book does not move to a charged comb. (a) True (b) False
19. 19.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) a plastic comb (b) vinegar (c) tiny paper bits (d) dry hair
20. 20.⚡ Which of these does not move to a charged comb? (a) a heavy book (b) tiny paper bits (c) dry hair (d) puffed rice
21. 21.⚖️ 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) False (b) True
22. 22.True or false: puffed rice jumps to a charged comb. (a) False (b) True
23. 23.🔮 Predict: you rub a balloon on dry hair and hold it on a wall. What happens? (a) it turns into water (b) it bursts at once (c) it sticks for a while (d) it falls straight down
24. 24.⚡ Which big natural spark is caused by static electricity? (a) the wind (b) a rainbow (c) dew (d) lightning
25. 25.True or false: a balloon is needed for the static comb. (a) False (b) True
26. 26.⚡ Why does the rubbed comb pull the paper bits? (a) it has static charge (b) it is sticky (c) it is a magnet (d) it is hot
27. 27.True or false: a plastic comb is needed for the static comb. (a) True (b) False
28. 28.⚖️ 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
29. 29.🧺 Do we need dry hair for the static comb? (a) not needed (b) needed
30. 30.⚖️ 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) the same hair (c) number of rubs (d) the same comb
31. 31.True or false: vinegar is needed for the static comb. (a) True (b) False
32. 32.🧺 Do we need a balloon for the static comb? (a) needed (b) not needed
33. 33.⚡ A rubbed comb is held near dry hair. What happens? (a) does not move (b) jumps to the comb
34. 34.🔍 Which is the odd one out? (a) a steel spoon (b) a heavy book (c) puffed rice (d) a brick
35. 35.🧺 Do we need yeast for the static comb? (a) not needed (b) needed
36. 36.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? What do we do with “the paper bit size”? (a) we keep it the same (b) we measure it (c) we change it
37. 37.⚖️ 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
38. 38.True or false: turmeric powder is not needed for the static comb. (a) True (b) False
39. 39.⚖️ 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
40. 40.⚡ A rubbed comb is held near a steel spoon. What happens? (a) does not move (b) jumps to the comb

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