Static Electricity Experiment Worksheet

Science experiments lesson 21: Static electricity: comb and paper bits · Set 682 · 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.🧺 Which of these is not needed for the static comb? (a) a plastic comb (b) a balloon (c) a mirror (d) tiny paper bits
2. 2.🧺 Which of these is not needed for the static comb? (a) dry hair (b) a plastic comb (c) yeast (d) tiny paper bits
3. 3.⚡ A rubbed comb is held near puffed rice. What happens? (a) jumps to the comb (b) does not move
4. 4.True or false: a heavy book does not move to a charged comb. (a) False (b) True
5. 5.⚡ Which of these does not move to a charged comb? (a) a pebble (b) thermocol bits (c) puffed rice (d) dry hair
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 turns into water (c) it bursts at once (d) it falls straight down
7. 7.⚡ Which of these jumps to a charged comb? (a) thermocol bits (b) a heavy book (c) a pebble (d) a brick
8. 8.🛟 Static from a comb is safe. Which electricity must children never play with? (a) a rubbed balloon (b) paper bits on a comb (c) plug points at home (d) a rubbed plastic comb
9. 9.⚖️ 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) paper bits picked up (c) number of rubs
10. 10.🔮 Predict: a charged comb is held near a thin stream of tap water. What happens? (a) the water stops (b) nothing at all (c) the water freezes (d) the stream bends
11. 11.🧺 Which of these is needed for the static comb? (a) a battery cell (b) vinegar (c) a mirror (d) dry hair
12. 12.⚖️ 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
13. 13.⚖️ 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
14. 14.⚖️ 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
15. 15.⚡ Why does the rubbed comb pull the paper bits? (a) it is hot (b) it has static charge (c) it is a magnet (d) it is sticky
16. 16.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) vinegar (b) a balloon (c) a plastic comb (d) dry hair
17. 17.True or false: yeast is needed for the static comb. (a) True (b) False
18. 18.True or false: a steel spoon does not move to a charged comb. (a) False (b) True
19. 19.⚡ A rubbed comb is held near dry hair. What happens? (a) jumps to the comb (b) does not move
20. 20.🛟 There is lightning outside. Where is it safest to be? (a) under a tall tree (b) on a rooftop (c) indoors (d) in an open field
21. 21.⚡ A rubbed comb is held near thermocol bits. What happens? (a) does not move (b) jumps to the comb
22. 22.⚖️ 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
23. 23.🧺 Which of these is needed for the static comb? (a) a battery cell (b) turmeric powder (c) a magnet (d) tiny paper bits
24. 24.🔍 Which is the odd one out? (a) a pebble (b) a heavy book (c) a brick (d) puffed rice
25. 25.🔮 Predict: you wet the comb before trying again. What happens? (a) it hardly works (b) it becomes a magnet (c) it works better (d) it lights up
26. 26.📘 Rubbing moves tiny charges. What do we call the charge that builds up? (a) sunlight (b) static electricity (c) gravity (d) magnetism
27. 27.⚡ Why does the comb trick work best on a dry day? (a) dry days are noisy (b) damp air leaks charge (c) water adds charge (d) wet hair is magnetic
28. 28.True or false: tiny paper bits jumps to a charged comb. (a) False (b) True
29. 29.True or false: thermocol bits jumps to a charged comb. (a) True (b) False
30. 30.🔍 Which is the odd one out? (a) thermocol bits (b) a thin water stream (c) puffed rice (d) a steel spoon
31. 31.⚡ 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
32. 32.⚖️ 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) paper bits picked up (d) the same comb
33. 33.⚡ A rubbed comb is held near a pebble. What happens? (a) jumps to the comb (b) does not move
34. 34.⚖️ 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
35. 35.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) a balloon (b) a mirror (c) tiny paper bits (d) dry hair
36. 36.🧺 Do we need a battery cell for the static comb? (a) not needed (b) needed
37. 37.🧺 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 battery cell
38. 38.True or false: dry hair is not needed for the static comb. (a) True (b) False
39. 39.🧺 Do we need tiny paper bits for the static comb? (a) not needed (b) needed
40. 40.🧺 Do we need yeast for the static comb? (a) not needed (b) needed

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