Static Electricity Experiment Worksheet

Science experiments lesson 21: Static electricity: comb and paper bits · Set 895 · 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? Which of these is the one thing we change? (a) number of rubs (b) the same hair (c) the same comb (d) the paper bit size
2. 2.⚖️ 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
3. 3.🧺 Which of these is needed for the static comb? (a) yeast (b) vinegar (c) turmeric powder (d) a plastic comb
4. 4.⚡ Why does the comb trick work best on a dry day? (a) water adds charge (b) wet hair is magnetic (c) damp air leaks charge (d) dry days are noisy
5. 5.⚡ Which of these does not move to a charged comb? (a) puffed rice (b) a thin water stream (c) thermocol bits (d) a brick
6. 6.True or false: dry hair jumps to a charged comb. (a) False (b) True
7. 7.⚡ Which of these jumps to a charged comb? (a) a pebble (b) a steel spoon (c) dry hair (d) a brick
8. 8.🛟 Static from a comb is safe. Which electricity must children never play with? (a) a rubbed balloon (b) a rubbed plastic comb (c) paper bits on a comb (d) plug points at home
9. 9.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? What do we do with “the same comb”? (a) we measure it (b) we keep it the same (c) we change it
10. 10.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) dry hair (b) tiny paper bits (c) a balloon (d) yeast
11. 11.⚡ A rubbed comb is held near puffed rice. What happens? (a) does not move (b) jumps to the comb
12. 12.🧺 Do we need tiny paper bits for the static comb? (a) not needed (b) needed
13. 13.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) a plastic comb (b) turmeric powder (c) a balloon (d) tiny paper bits
14. 14.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? Which of these is what we measure? (a) the paper bit size (b) number of rubs (c) distance to the paper (d) paper bits picked up
15. 15.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? What do we do with “the same hair”? (a) we keep it the same (b) we measure it (c) we change it
16. 16.True or false: tiny paper bits is not needed for the static comb. (a) False (b) True
17. 17.🧺 Do we need turmeric powder for the static comb? (a) needed (b) not needed
18. 18.🧺 Which of these is needed for the static comb? (a) tiny paper bits (b) vinegar (c) a battery cell (d) turmeric powder
19. 19.🔮 Predict: you rub a balloon on dry hair and hold it on a wall. What happens? (a) it falls straight down (b) it sticks for a while (c) it bursts at once (d) it turns into water
20. 20.🧺 Which of these is not needed for the static comb? (a) a balloon (b) a plastic comb (c) tiny paper bits (d) a battery cell
21. 21.⚡ Why does the rubbed comb pull the paper bits? (a) it has static charge (b) it is a magnet (c) it is sticky (d) it is hot
22. 22.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? Which of these is kept the same? (a) number of rubs (b) paper bits picked up (c) distance to the paper
23. 23.True or false: vinegar is not needed for the static comb. (a) True (b) False
24. 24.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) a balloon (b) a plastic comb (c) a magnet (d) tiny paper bits
25. 25.🧺 Which of these is not needed for the static comb? (a) a balloon (b) dry hair (c) turmeric powder (d) a plastic comb
26. 26.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) a plastic comb (b) a mirror (c) a balloon (d) tiny paper bits
27. 27.True or false: turmeric powder is needed for the static comb. (a) False (b) True
28. 28.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? True or false: the same comb is the one thing we change. (a) True (b) False
29. 29.⚖️ 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
30. 30.True or false: a brick jumps to a charged comb. (a) True (b) False
31. 31.🧺 Which of these is not needed for the static comb? (a) vinegar (b) dry hair (c) a balloon (d) a plastic comb
32. 32.🔍 Which is the odd one out? (a) thermocol bits (b) puffed rice (c) a heavy book (d) dry hair
33. 33.True or false: tiny paper bits is needed for the static comb. (a) True (b) False
34. 34.⚡ You comb dry hair and hold the comb near tiny paper bits. What happens? (a) the bits jump to it (b) nothing happens (c) they turn blue (d) they turn wet
35. 35.True or false: yeast is not needed for the static comb. (a) False (b) True
36. 36.⚖️ 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
37. 37.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) tiny paper bits (b) a battery cell (c) dry hair (d) a plastic comb
38. 38.🧺 Do we need yeast for the static comb? (a) not needed (b) needed
39. 39.⚖️ 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
40. 40.⚖️ 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

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