Static Electricity Experiment Worksheet

Science experiments lesson 21: Static electricity: comb and paper bits · Set 375 · 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 vinegar for the static comb? (a) not needed (b) needed
2. 2.🔍 Which is the odd one out? (a) puffed rice (b) a steel spoon (c) a heavy book (d) a brick
3. 3.True or false: dry hair is not needed for the static comb. (a) True (b) False
4. 4.🛟 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
5. 5.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) turmeric powder (b) dry hair (c) a plastic comb (d) tiny paper bits
6. 6.🔮 Predict: you rub a balloon on dry hair and hold it on a wall. What happens? (a) it sticks for a while (b) it bursts at once (c) it turns into water (d) it falls straight down
7. 7.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) dry hair (b) a plastic comb (c) tiny paper bits (d) a magnet
8. 8.🔮 Predict: a charged comb is held near a thin stream of tap water. What happens? (a) the stream bends (b) the water freezes (c) nothing at all (d) the water stops
9. 9.🔮 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
10. 10.⚖️ 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 change it (c) we keep it the same
11. 11.True or false: a brick jumps to a charged comb. (a) False (b) True
12. 12.🔍 Which is the odd one out? (a) a heavy book (b) a thin water stream (c) thermocol bits (d) tiny paper bits
13. 13.True or false: yeast is not needed for the static comb. (a) False (b) True
14. 14.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? What do we do with “the paper bit size”? (a) we change it (b) we measure it (c) we keep it the same
15. 15.⚡ A rubbed comb is held near tiny paper bits. What happens? (a) does not move (b) jumps to the comb
16. 16.⚡ A rubbed comb is held near a steel spoon. What happens? (a) jumps to the comb (b) does not move
17. 17.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) a mirror (b) a plastic comb (c) a balloon (d) dry hair
18. 18.⚡ Which of these jumps to a charged comb? (a) thermocol bits (b) a brick (c) a pebble (d) a heavy book
19. 19.True or false: vinegar is not needed for the static comb. (a) True (b) False
20. 20.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) yeast (b) tiny paper bits (c) dry hair (d) a balloon
21. 21.⚡ Why does the rubbed comb pull the paper bits? (a) it has static charge (b) it is hot (c) it is a magnet (d) it is sticky
22. 22.🧺 Do we need a plastic comb for the static comb? (a) not needed (b) needed
23. 23.⚡ A rubbed comb is held near a pebble. What happens? (a) jumps to the comb (b) does not move
24. 24.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) dry hair (b) a plastic comb (c) vinegar (d) tiny paper bits
25. 25.🧺 Which of these is not needed for the static comb? (a) a balloon (b) yeast (c) a plastic comb (d) dry hair
26. 26.True or false: a steel spoon does not move to a charged comb. (a) False (b) True
27. 27.⚖️ 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 paper bit size (c) paper bits picked up (d) the same comb
28. 28.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? True or false: the paper bit size is what we measure. (a) False (b) True
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.True or false: dry hair is needed for the static comb. (a) True (b) False
31. 31.🧺 Which of these is needed for the static comb? (a) a mirror (b) tiny paper bits (c) yeast (d) a magnet
32. 32.⚡ Why does the comb trick work best on a dry day? (a) wet hair is magnetic (b) dry days are noisy (c) water adds charge (d) damp air leaks charge
33. 33.⚖️ 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
34. 34.🔍 Which is the odd one out? (a) a pebble (b) a brick (c) a heavy book (d) tiny paper bits
35. 35.⚡ Which big natural spark is caused by static electricity? (a) a rainbow (b) the wind (c) dew (d) lightning
36. 36.📘 Rubbing moves tiny charges. What do we call the charge that builds up? (a) gravity (b) magnetism (c) static electricity (d) sunlight
37. 37.🧺 Do we need a mirror for the static comb? (a) not needed (b) needed
38. 38.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? Which of these is the one thing we change? (a) paper bits picked up (b) the same hair (c) number of rubs (d) the paper bit size
39. 39.🧺 Which of these is needed for the static comb? (a) a battery cell (b) dry hair (c) yeast (d) turmeric powder
40. 40.True or false: thermocol bits jumps to a charged comb. (a) True (b) False

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