Static Electricity Experiment Worksheet

Science experiments lesson 21: Static electricity: comb and paper bits · Set 236 · 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? What do we do with “paper bits picked up”? (a) we keep it the same (b) we change it (c) we measure it
2. 2.🧺 Do we need tiny paper bits for the static comb? (a) needed (b) not needed
3. 3.🛟 There is lightning outside. Where is it safest to be? (a) on a rooftop (b) under a tall tree (c) in an open field (d) indoors
4. 4.🔮 Predict: a charged comb is held near a thin stream of tap water. What happens? (a) nothing at all (b) the water stops (c) the stream bends (d) the water freezes
5. 5.True or false: dry hair jumps to a charged comb. (a) False (b) True
6. 6.⚖️ 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
7. 7.⚖️ 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 comb
8. 8.True or false: a thin water stream jumps to a charged comb. (a) True (b) False
9. 9.🧺 Do we need dry hair for the static comb? (a) not needed (b) needed
10. 10.⚡ A rubbed comb is held near tiny paper bits. What happens? (a) does not move (b) jumps to the comb
11. 11.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? What do we do with “the same comb”? (a) we change it (b) we measure it (c) we keep it the same
12. 12.🧺 Which of these is not needed for the static comb? (a) a balloon (b) a plastic comb (c) a magnet (d) dry hair
13. 13.⚡ A rubbed comb is held near a steel spoon. What happens? (a) jumps to the comb (b) does not move
14. 14.🧺 Do we need turmeric powder for the static comb? (a) not needed (b) needed
15. 15.🧺 Do we need a plastic comb for the static comb? (a) needed (b) not needed
16. 16.⚖️ 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) the paper bit size (c) number of rubs
17. 17.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) tiny paper bits (b) dry hair (c) a balloon (d) yeast
18. 18.🔍 Which is the odd one out? (a) a steel spoon (b) thermocol bits (c) puffed rice (d) dry hair
19. 19.True or false: puffed rice does not move to a charged comb. (a) False (b) True
20. 20.🔍 Which is the odd one out? (a) a brick (b) puffed rice (c) a pebble (d) a heavy book
21. 21.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? What do we do with “distance to the paper”? (a) we measure it (b) we keep it the same (c) we change it
22. 22.⚡ You comb dry hair and hold the comb near tiny paper bits. What happens? (a) nothing happens (b) they turn wet (c) the bits jump to it (d) they turn blue
23. 23.🧺 Which of these is needed for the static comb? (a) a balloon (b) yeast (c) a mirror (d) a magnet
24. 24.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? Which of these is the one thing we change? (a) number of rubs (b) the same comb (c) the same hair (d) distance to the paper
25. 25.⚡ Which of these jumps to a charged comb? (a) a heavy book (b) a steel spoon (c) tiny paper bits (d) a brick
26. 26.True or false: dry hair does not move to a charged comb. (a) True (b) False
27. 27.⚡ A rubbed comb is held near a pebble. What happens? (a) does not move (b) jumps to the comb
28. 28.⚡ Why does the comb trick work best on a dry day? (a) dry days are noisy (b) damp air leaks charge (c) water adds charge (d) wet hair is magnetic
29. 29.⚖️ 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
30. 30.⚡ A rubbed comb is held near thermocol bits. What happens? (a) does not move (b) jumps to the comb
31. 31.🔍 Which is the odd one out? (a) a brick (b) thermocol bits (c) dry hair (d) tiny paper bits
32. 32.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) a plastic comb (b) a balloon (c) tiny paper bits (d) vinegar
33. 33.🔮 Predict: you wet the comb before trying again. What happens? (a) it lights up (b) it works better (c) it becomes a magnet (d) it hardly works
34. 34.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) a mirror (b) dry hair (c) a balloon (d) a plastic comb
35. 35.True or false: dry hair is needed for the static comb. (a) True (b) False
36. 36.📘 Rubbing moves tiny charges. What do we call the charge that builds up? (a) static electricity (b) sunlight (c) gravity (d) magnetism
37. 37.🧺 Which of these is needed for the static comb? (a) a battery cell (b) a magnet (c) turmeric powder (d) dry hair
38. 38.True or false: tiny paper bits jumps to a charged comb. (a) False (b) True
39. 39.⚡ A rubbed comb is held near a thin water stream. What happens? (a) does not move (b) jumps to the comb
40. 40.⚡ A rubbed comb is held near puffed rice. What happens? (a) jumps to the comb (b) does not move

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