Static Electricity Experiment Worksheet

Science experiments lesson 21: Static electricity: comb and paper bits · Set 245 · 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.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? Which of these is what we measure? (a) distance to the paper (b) number of rubs (c) the paper bit size (d) paper bits picked up
2. 2.True or false: turmeric powder is needed for the static comb. (a) False (b) True
3. 3.⚡ Which of these jumps to a charged comb? (a) a brick (b) a thin water stream (c) a heavy book (d) a pebble
4. 4.🔮 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
5. 5.🧺 Do we need a mirror for the static comb? (a) not needed (b) needed
6. 6.🧺 Do we need dry hair for the static comb? (a) needed (b) not needed
7. 7.⚖️ 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
8. 8.⚡ A rubbed comb is held near thermocol bits. What happens? (a) does not move (b) jumps to the comb
9. 9.⚡ Which big natural spark is caused by static electricity? (a) the wind (b) dew (c) a rainbow (d) lightning
10. 10.⚖️ 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 measure it (c) we change it
11. 11.True or false: puffed rice does not move to a charged comb. (a) False (b) True
12. 12.🧺 Do we need tiny paper bits for the static comb? (a) not needed (b) needed
13. 13.🧺 Do we need turmeric powder for the static comb? (a) needed (b) not needed
14. 14.True or false: a steel spoon does not move to a charged comb. (a) False (b) True
15. 15.🔮 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 turns into water (d) it sticks for a while
16. 16.⚡ Why does the comb trick work best on a dry day? (a) dry days are noisy (b) water adds charge (c) wet hair is magnetic (d) damp air leaks charge
17. 17.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) a plastic comb (b) tiny paper bits (c) turmeric powder (d) a balloon
18. 18.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? What do we do with “the same hair”? (a) we measure it (b) we change it (c) we keep it the same
19. 19.🧺 Which of these is not needed for the static comb? (a) a plastic comb (b) yeast (c) a balloon (d) tiny paper bits
20. 20.🧺 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) vinegar
21. 21.⚖️ 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
22. 22.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? What do we do with “the paper bit size”? (a) we change it (b) we measure it (c) we keep it the same
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) number of rubs (c) paper bits picked up (d) the same comb
24. 24.🧺 Which of these is not needed for the static comb? (a) a plastic comb (b) a balloon (c) a battery cell (d) dry hair
25. 25.⚡ A rubbed comb is held near a brick. 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: paper bits picked up is what we measure. (a) False (b) True
27. 27.📘 Rubbing moves tiny charges. What do we call the charge that builds up? (a) magnetism (b) static electricity (c) sunlight (d) gravity
28. 28.🧺 Which of these is needed for the static comb? (a) tiny paper bits (b) a battery cell (c) a mirror (d) turmeric powder
29. 29.⚡ Which of these jumps to a charged comb? (a) a heavy book (b) a brick (c) a pebble (d) puffed rice
30. 30.True or false: a mirror is not needed for the static comb. (a) False (b) True
31. 31.🧺 Which of these is not needed for the static comb? (a) tiny paper bits (b) a plastic comb (c) a balloon (d) a magnet
32. 32.🧺 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) tiny paper bits
33. 33.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? Which of these is kept the same? (a) the same hair (b) number of rubs (c) paper bits picked up
34. 34.🧺 Which of these is needed for the static comb? (a) a battery cell (b) a magnet (c) a mirror (d) dry hair
35. 35.True or false: a battery cell is needed for the static comb. (a) True (b) False
36. 36.🛟 Static from a comb is safe. Which electricity must children never play with? (a) plug points at home (b) a rubbed plastic comb (c) paper bits on a comb (d) a rubbed balloon
37. 37.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) yeast (b) a balloon (c) dry hair (d) a plastic comb
38. 38.⚖️ 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
39. 39.⚖️ 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
40. 40.⚡ A rubbed comb is held near a pebble. What happens? (a) jumps to the comb (b) does not move

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