Static Electricity Experiment Worksheet

Science experiments lesson 21: Static electricity: comb and paper bits · Set 813 · 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.📘 Rubbing moves tiny charges. What do we call the charge that builds up? (a) gravity (b) sunlight (c) magnetism (d) static electricity
2. 2.⚖️ 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) distance to the paper
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 measure it (b) we change it (c) we keep it the same
4. 4.⚡ Why does the comb trick work best on a dry day? (a) wet hair is magnetic (b) water adds charge (c) dry days are noisy (d) damp air leaks charge
5. 5.True or false: dry hair is not needed for the static comb. (a) False (b) True
6. 6.⚡ Why does the rubbed comb pull the paper bits? (a) it is sticky (b) it is hot (c) it is a magnet (d) it has static charge
7. 7.⚡ A rubbed comb is held near a thin water stream. What happens? (a) does not move (b) jumps to the comb
8. 8.⚖️ 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 hair (b) number of rubs (c) the paper bit size (d) the same comb
9. 9.⚡ A rubbed comb is held near thermocol bits. What happens? (a) does not move (b) jumps to the comb
10. 10.⚡ Which of these does not move to a charged comb? (a) a heavy book (b) dry hair (c) puffed rice (d) tiny paper bits
11. 11.🧺 Do we need vinegar for the static comb? (a) not needed (b) needed
12. 12.🧺 Do we need a balloon for the static comb? (a) needed (b) not needed
13. 13.⚡ Which big natural spark is caused by static electricity? (a) a rainbow (b) the wind (c) lightning (d) dew
14. 14.⚡ Which of these does not move to a charged comb? (a) dry hair (b) tiny paper bits (c) a thin water stream (d) a brick
15. 15.🔮 Predict: you rub a balloon on dry hair and hold it on a wall. What happens? (a) it turns into water (b) it falls straight down (c) it sticks for a while (d) it bursts at once
16. 16.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) turmeric powder (b) dry hair (c) tiny paper bits (d) a balloon
17. 17.🛟 Static from a comb is safe. Which electricity must children never play with? (a) a rubbed plastic comb (b) paper bits on a comb (c) a rubbed balloon (d) plug points at home
18. 18.⚡ Which of these jumps to a charged comb? (a) a steel spoon (b) a heavy book (c) a thin water stream (d) a brick
19. 19.🧺 Which of these is not needed for the static comb? (a) a balloon (b) a mirror (c) tiny paper bits (d) a plastic comb
20. 20.True or false: vinegar is not needed for the static comb. (a) False (b) True
21. 21.⚡ You comb dry hair and hold the comb near tiny paper bits. What happens? (a) the bits jump to it (b) they turn wet (c) they turn blue (d) nothing happens
22. 22.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) a balloon (b) yeast (c) dry hair (d) a plastic comb
23. 23.⚡ Which of these does not move to a charged comb? (a) thermocol bits (b) tiny paper bits (c) puffed rice (d) a pebble
24. 24.🧺 Do we need a battery cell for the static comb? (a) not needed (b) needed
25. 25.⚡ A rubbed comb is held near a pebble. What happens? (a) jumps to the comb (b) does not move
26. 26.🛟 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
27. 27.🧺 Do we need tiny paper bits for the static comb? (a) needed (b) not needed
28. 28.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? Which of these is kept the same? (a) the paper bit size (b) number of rubs (c) paper bits picked up
29. 29.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? True or false: number of rubs is what we measure. (a) True (b) False
30. 30.⚖️ 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
31. 31.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? Which of these is what we measure? (a) number of rubs (b) paper bits picked up (c) the same hair (d) the same comb
32. 32.🔮 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
33. 33.⚡ Which of these does not move to a charged comb? (a) puffed rice (b) a thin water stream (c) dry hair (d) a steel spoon
34. 34.🧺 Do we need a magnet for the static comb? (a) needed (b) not needed
35. 35.⚖️ 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 change it (c) we measure it
36. 36.True or false: a battery cell is not needed for the static comb. (a) True (b) False
37. 37.🔍 Which is the odd one out? (a) a brick (b) a heavy book (c) tiny paper bits (d) a pebble
38. 38.True or false: tiny paper bits is not needed for the static comb. (a) True (b) False
39. 39.🧺 Which of these is not needed for the static comb? (a) a plastic comb (b) vinegar (c) a balloon (d) dry hair
40. 40.🔍 Which is the odd one out? (a) a thin water stream (b) dry hair (c) a brick (d) tiny paper bits

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