Static Electricity Experiment Worksheet

Science experiments lesson 21: Static electricity: comb and paper bits · Set 794 · 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 what we measure? (a) the same comb (b) the same hair (c) the paper bit size (d) paper bits picked up
2. 2.True or false: dry hair 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 “the same hair”? (a) we change it (b) we measure it (c) we keep it the same
4. 4.⚡ A rubbed comb is held near tiny paper bits. What happens? (a) jumps to the comb (b) does not move
5. 5.True or false: a pebble does not move to a charged comb. (a) False (b) True
6. 6.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? What do we do with “paper bits picked up”? (a) we keep it the same (b) we change it (c) we measure it
7. 7.True or false: vinegar is needed for the static comb. (a) False (b) True
8. 8.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? What do we do with “the paper bit size”? (a) we measure it (b) we change it (c) we keep it the same
9. 9.⚖️ 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 keep it the same (c) we change it
10. 10.⚖️ 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
11. 11.🔮 Predict: you rub a balloon on dry hair and hold it on a wall. What happens? (a) it turns into water (b) it sticks for a while (c) it bursts at once (d) it falls straight down
12. 12.⚡ You comb dry hair and hold the comb near tiny paper bits. What happens? (a) nothing happens (b) the bits jump to it (c) they turn wet (d) they turn blue
13. 13.⚡ Why does the rubbed comb pull the paper bits? (a) it is sticky (b) it is hot (c) it has static charge (d) it is a magnet
14. 14.🛟 Static from a comb is safe. Which electricity must children never play with? (a) a rubbed balloon (b) paper bits on a comb (c) a rubbed plastic comb (d) plug points at home
15. 15.🧺 Do we need dry hair for the static comb? (a) not needed (b) needed
16. 16.True or false: a thin water stream jumps to a charged comb. (a) False (b) True
17. 17.True or false: a mirror is needed for the static comb. (a) True (b) False
18. 18.⚖️ 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
19. 19.⚖️ 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) False (b) True
20. 20.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) a plastic comb (b) a balloon (c) dry hair (d) turmeric powder
21. 21.True or false: a balloon is not needed for the static comb. (a) True (b) False
22. 22.🔍 Which is the odd one out? (a) a pebble (b) a brick (c) a steel spoon (d) puffed rice
23. 23.🧺 Do we need vinegar for the static comb? (a) not needed (b) needed
24. 24.🧺 Do we need tiny paper bits for the static comb? (a) not needed (b) needed
25. 25.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? True or false: paper bits picked up is the one thing we change. (a) True (b) False
26. 26.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) a plastic comb (b) tiny paper bits (c) a magnet (d) a balloon
27. 27.⚡ A rubbed comb is held near a pebble. What happens? (a) jumps to the comb (b) does not move
28. 28.⚡ Which of these does not move to a charged comb? (a) puffed rice (b) a pebble (c) a thin water stream (d) tiny paper bits
29. 29.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) dry hair (b) a balloon (c) a plastic comb (d) a mirror
30. 30.⚖️ 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
31. 31.⚡ A rubbed comb is held near thermocol bits. What happens? (a) does not move (b) jumps to the comb
32. 32.🧺 Which of these is needed for the static comb? (a) a plastic comb (b) a mirror (c) vinegar (d) turmeric powder
33. 33.True or false: dry hair jumps to a charged comb. (a) False (b) True
34. 34.⚖️ 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
35. 35.🧺 Do we need a plastic comb for the static comb? (a) not needed (b) needed
36. 36.True or false: yeast is needed for the static comb. (a) True (b) False
37. 37.True or false: a steel spoon does not move to a charged comb. (a) False (b) True
38. 38.🔮 Predict: a charged comb is held near a thin stream of tap water. What happens? (a) the water stops (b) the stream bends (c) nothing at all (d) the water freezes
39. 39.True or false: thermocol bits does not move to a charged comb. (a) True (b) False
40. 40.True or false: a balloon is needed for the static comb. (a) True (b) False

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