Static Electricity Experiment Worksheet

Science experiments lesson 21: Static electricity: comb and paper bits · Set 329 · 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.🧺 Do we need yeast for the static comb? (a) needed (b) not needed
2. 2.True or false: a brick does not move to a charged comb. (a) False (b) True
3. 3.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? What do we do with “number of rubs”? (a) we change it (b) we keep it the same (c) we measure it
4. 4.⚡ Which of these jumps to a charged comb? (a) a steel spoon (b) a thin water stream (c) a heavy book (d) a pebble
5. 5.True or false: yeast is needed for the static comb. (a) False (b) True
6. 6.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? Which of these is the one thing we change? (a) the same comb (b) number of rubs (c) paper bits picked up (d) distance to the paper
7. 7.📘 Rubbing moves tiny charges. What do we call the charge that builds up? (a) sunlight (b) gravity (c) magnetism (d) static electricity
8. 8.⚡ A rubbed comb is held near thermocol bits. What happens? (a) jumps to the comb (b) does not move
9. 9.⚖️ 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
10. 10.🛟 There is lightning outside. Where is it safest to be? (a) indoors (b) in an open field (c) under a tall tree (d) on a rooftop
11. 11.🔍 Which is the odd one out? (a) a thin water stream (b) a pebble (c) tiny paper bits (d) puffed rice
12. 12.True or false: a mirror is not needed for the static comb. (a) False (b) True
13. 13.🔮 Predict: you wet the comb before trying again. What happens? (a) it becomes a magnet (b) it works better (c) it hardly works (d) it lights up
14. 14.⚖️ 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
15. 15.⚖️ 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 measure it (c) we keep it the same
16. 16.True or false: a heavy book jumps to a charged comb. (a) False (b) True
17. 17.🧺 Do we need turmeric powder for the static comb? (a) needed (b) not needed
18. 18.🧺 Do we need tiny paper bits for the static comb? (a) needed (b) not needed
19. 19.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? Which of these is what we measure? (a) the same comb (b) paper bits picked up (c) number of rubs (d) the paper bit size
20. 20.⚡ A rubbed comb is held near a pebble. What happens? (a) jumps to the comb (b) does not move
21. 21.⚡ Which of these does not move to a charged comb? (a) dry hair (b) a pebble (c) thermocol bits (d) a thin water stream
22. 22.🧺 Do we need a balloon for the static comb? (a) not needed (b) needed
23. 23.⚡ A rubbed comb is held near a thin water stream. What happens? (a) does not move (b) jumps to the comb
24. 24.⚖️ 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
25. 25.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) tiny paper bits (b) dry hair (c) vinegar (d) a balloon
26. 26.True or false: tiny paper bits is needed for the static comb. (a) True (b) False
27. 27.🔍 Which is the odd one out? (a) a steel spoon (b) a heavy book (c) dry hair (d) a brick
28. 28.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) a plastic comb (b) a mirror (c) dry hair (d) a balloon
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) False (b) True
30. 30.🔍 Which is the odd one out? (a) a steel spoon (b) a thin water stream (c) dry hair (d) puffed rice
31. 31.🔍 Which is the odd one out? (a) a thin water stream (b) a brick (c) tiny paper bits (d) puffed rice
32. 32.True or false: a balloon is needed for the static comb. (a) True (b) False
33. 33.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? True or false: the same comb is what we measure. (a) False (b) True
34. 34.⚡ Why does the comb trick work best on a dry day? (a) dry days are noisy (b) water adds charge (c) damp air leaks charge (d) wet hair is magnetic
35. 35.⚡ A rubbed comb is held near a brick. What happens? (a) jumps to the comb (b) does not move
36. 36.True or false: a mirror is needed for the static comb. (a) True (b) False
37. 37.⚡ A rubbed comb is held near a steel spoon. What happens? (a) does not move (b) jumps to the comb
38. 38.True or false: dry hair is not needed for the static comb. (a) True (b) False
39. 39.🧺 Which of these is not needed for the static comb? (a) tiny paper bits (b) dry hair (c) a mirror (d) a balloon
40. 40.🔍 Which is the odd one out? (a) a brick (b) tiny paper bits (c) a pebble (d) a heavy book

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