Static Electricity Experiment Worksheet

Science experiments lesson 21: Static electricity: comb and paper bits · Set 22 · 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) dry hair (b) turmeric powder (c) yeast (d) vinegar
2. 2.True or false: a brick does not move to a charged comb. (a) False (b) True
3. 3.True or false: puffed rice jumps to a charged comb. (a) True (b) False
4. 4.🛟 There is lightning outside. Where is it safest to be? (a) in an open field (b) under a tall tree (c) on a rooftop (d) indoors
5. 5.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? What do we do with “the same comb”? (a) we keep it the same (b) we measure it (c) we change it
6. 6.🧺 Do we need turmeric powder for the static comb? (a) needed (b) not needed
7. 7.🔮 Predict: you wet the comb before trying again. What happens? (a) it becomes a magnet (b) it lights up (c) it works better (d) it hardly works
8. 8.⚡ Which of these does not move to a charged comb? (a) tiny paper bits (b) thermocol bits (c) a steel spoon (d) a thin water stream
9. 9.⚖️ 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) paper bits picked up (c) the same comb (d) number of rubs
10. 10.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? What do we do with “the paper bit size”? (a) we measure it (b) we keep it the same (c) we change it
11. 11.🛟 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
12. 12.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) tiny paper bits (b) a battery cell (c) a plastic comb (d) dry hair
13. 13.🧺 Do we need a balloon for the static comb? (a) not needed (b) needed
14. 14.📘 Rubbing moves tiny charges. What do we call the charge that builds up? (a) static electricity (b) magnetism (c) gravity (d) sunlight
15. 15.⚖️ 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
16. 16.⚡ Which of these does not move to a charged comb? (a) dry hair (b) a thin water stream (c) tiny paper bits (d) a pebble
17. 17.⚡ A rubbed comb is held near puffed rice. What happens? (a) does not move (b) jumps to the comb
18. 18.⚡ You comb dry hair and hold the comb near tiny paper bits. What happens? (a) they turn wet (b) nothing happens (c) they turn blue (d) the bits jump to it
19. 19.True or false: turmeric powder is not needed for the static comb. (a) False (b) True
20. 20.⚡ Which of these does not move to a charged comb? (a) tiny paper bits (b) dry hair (c) thermocol bits (d) a brick
21. 21.True or false: a mirror is not needed for the static comb. (a) True (b) False
22. 22.⚡ A rubbed comb is held near a brick. What happens? (a) jumps to the comb (b) does not move
23. 23.⚡ 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
24. 24.🧺 Do we need tiny paper bits for the static comb? (a) needed (b) not needed
25. 25.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? True or false: the same comb is kept the same. (a) False (b) True
26. 26.⚖️ 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) True (b) False
27. 27.🧺 Do we need a mirror for the static comb? (a) needed (b) not needed
28. 28.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? What do we do with “paper bits picked up”? (a) we change it (b) we keep it the same (c) we measure it
29. 29.⚡ Which big natural spark is caused by static electricity? (a) a rainbow (b) the wind (c) dew (d) lightning
30. 30.True or false: dry hair jumps to a charged comb. (a) True (b) False
31. 31.⚖️ 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) False (b) True
32. 32.⚡ A rubbed comb is held near thermocol bits. What happens? (a) jumps to the comb (b) does not move
33. 33.🧺 Do we need dry hair for the static comb? (a) not needed (b) needed
34. 34.🧺 Which of these is not needed for the static comb? (a) a balloon (b) dry hair (c) a magnet (d) tiny paper bits
35. 35.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? True or false: number of rubs is kept the same. (a) False (b) True
36. 36.🧺 Do we need a magnet for the static comb? (a) not needed (b) needed
37. 37.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? Which of these is the one thing we change? (a) distance to the paper (b) number of rubs (c) paper bits picked up (d) the same comb
38. 38.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) a magnet (b) tiny paper bits (c) a balloon (d) a plastic comb
39. 39.🧺 Which of these is not needed for the static comb? (a) a battery cell (b) a balloon (c) dry hair (d) a plastic comb
40. 40.True or false: dry hair does not move to a charged comb. (a) True (b) False

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