Static Electricity Experiment Worksheet

Science experiments lesson 21: Static electricity: comb and paper bits · Set 400 · 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 “the same hair”? (a) we measure it (b) we change it (c) we keep it the same
2. 2.🧺 Do we need yeast for the static comb? (a) not needed (b) needed
3. 3.🔮 Predict: you rub a balloon on dry hair and hold it on a wall. What happens? (a) it falls straight down (b) it turns into water (c) it sticks for a while (d) it bursts at once
4. 4.⚖️ 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
5. 5.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? What do we do with “distance to the paper”? (a) we change it (b) we keep it the same (c) we measure it
6. 6.⚡ Which of these does not move to a charged comb? (a) a thin water stream (b) a steel spoon (c) puffed rice (d) thermocol bits
7. 7.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? True or false: number of rubs is kept the same. (a) True (b) False
8. 8.🔍 Which is the odd one out? (a) a brick (b) a heavy book (c) dry hair (d) a pebble
9. 9.⚡ A rubbed comb is held near a thin water stream. What happens? (a) jumps to the comb (b) does not move
10. 10.🛟 Static from a comb is safe. Which electricity must children never play with? (a) plug points at home (b) a rubbed plastic comb (c) a rubbed balloon (d) paper bits on a comb
11. 11.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? True or false: the same hair is the one thing we change. (a) False (b) True
12. 12.⚡ Which of these jumps to a charged comb? (a) a pebble (b) a brick (c) a thin water stream (d) a heavy book
13. 13.⚖️ 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 paper bit size
14. 14.True or false: yeast is not needed for the static comb. (a) True (b) False
15. 15.⚖️ 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) the paper bit size (d) the same comb
16. 16.🔍 Which is the odd one out? (a) puffed rice (b) dry hair (c) thermocol bits (d) a steel spoon
17. 17.⚖️ 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
18. 18.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? True or false: the same hair is kept the same. (a) True (b) False
19. 19.True or false: puffed rice jumps to a charged comb. (a) False (b) True
20. 20.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? What do we do with “paper bits picked up”? (a) we measure it (b) we change it (c) we keep it the same
21. 21.📘 Rubbing moves tiny charges. What do we call the charge that builds up? (a) magnetism (b) sunlight (c) static electricity (d) gravity
22. 22.⚡ Why does the rubbed comb pull the paper bits? (a) it is hot (b) it is sticky (c) it is a magnet (d) it has static charge
23. 23.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? True or false: distance to the paper is the one thing we change. (a) True (b) False
24. 24.⚡ Why does the comb trick work best on a dry day? (a) wet hair is magnetic (b) damp air leaks charge (c) water adds charge (d) dry days are noisy
25. 25.True or false: a battery cell is needed for the static comb. (a) True (b) False
26. 26.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) tiny paper bits (b) a mirror (c) a balloon (d) a plastic comb
27. 27.⚡ Which of these jumps to a charged comb? (a) a heavy book (b) puffed rice (c) a steel spoon (d) a pebble
28. 28.🛟 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
29. 29.⚖️ 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
30. 30.⚡ You comb dry hair and hold the comb near tiny paper bits. What happens? (a) they turn blue (b) they turn wet (c) nothing happens (d) the bits jump to it
31. 31.⚖️ 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 measure it (c) we change it
32. 32.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) a plastic comb (b) dry hair (c) tiny paper bits (d) a battery cell
33. 33.🧺 Which of these is not needed for the static comb? (a) dry hair (b) a plastic comb (c) tiny paper bits (d) vinegar
34. 34.⚖️ 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) the same comb (c) distance to the paper (d) paper bits picked up
35. 35.True or false: vinegar is needed for the static comb. (a) True (b) False
36. 36.🧺 Do we need a balloon for the static comb? (a) not needed (b) needed
37. 37.🔍 Which is the odd one out? (a) thermocol bits (b) puffed rice (c) a brick (d) dry hair
38. 38.🧺 Do we need turmeric powder for the static comb? (a) not needed (b) needed
39. 39.🧺 Do we need a magnet for the static comb? (a) not needed (b) needed
40. 40.🧺 Which of these is needed for the static comb? (a) yeast (b) a battery cell (c) a plastic comb (d) vinegar

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