Static Electricity Experiment Worksheet

Science experiments lesson 21: Static electricity: comb and paper bits · Set 306 · 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.⚡ Which of these jumps to a charged comb? (a) a heavy book (b) puffed rice (c) a steel spoon (d) a brick
3. 3.🧺 Do we need vinegar for the static comb? (a) not needed (b) needed
4. 4.🛟 There is lightning outside. Where is it safest to be? (a) under a tall tree (b) in an open field (c) indoors (d) on a rooftop
5. 5.⚡ A rubbed comb is held near dry hair. What happens? (a) does not move (b) jumps to the comb
6. 6.🔍 Which is the odd one out? (a) a steel spoon (b) a brick (c) tiny paper bits (d) a heavy book
7. 7.⚖️ 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
8. 8.🧺 Which of these is needed for the static comb? (a) a plastic comb (b) a magnet (c) a battery cell (d) yeast
9. 9.🔮 Predict: a charged comb is held near a thin stream of tap water. What happens? (a) nothing at all (b) the water freezes (c) the water stops (d) the stream bends
10. 10.⚖️ 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) the same comb (c) number of rubs
11. 11.⚡ You comb dry hair and hold the comb near tiny paper bits. What happens? (a) they turn wet (b) nothing happens (c) they turn blue (d) the bits jump to it
12. 12.⚖️ 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) distance to the paper (c) the paper bit size (d) the same comb
13. 13.True or false: tiny paper bits jumps to a charged comb. (a) True (b) False
14. 14.True or false: a balloon is needed for the static comb. (a) True (b) False
15. 15.🔮 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 falls straight down (d) it bursts at once
16. 16.⚡ Which of these does not move to a charged comb? (a) a thin water stream (b) a heavy book (c) tiny paper bits (d) thermocol bits
17. 17.🛟 Static from a comb is safe. Which electricity must children never play with? (a) a rubbed balloon (b) plug points at home (c) a rubbed plastic comb (d) paper bits on a comb
18. 18.🧺 Do we need a balloon for the static comb? (a) not needed (b) needed
19. 19.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) dry hair (b) a plastic comb (c) a balloon (d) turmeric powder
20. 20.🧺 Do we need a mirror for the static comb? (a) needed (b) not needed
21. 21.⚡ Why does the comb trick work best on a dry day? (a) damp air leaks charge (b) dry days are noisy (c) wet hair is magnetic (d) water adds charge
22. 22.🧺 Do we need tiny paper bits for the static comb? (a) needed (b) not needed
23. 23.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) a balloon (b) a plastic comb (c) a mirror (d) tiny paper bits
24. 24.🧺 Which of these is not needed for the static comb? (a) dry hair (b) yeast (c) a plastic comb (d) a balloon
25. 25.🔮 Predict: you wet the comb before trying again. What happens? (a) it works better (b) it hardly works (c) it lights up (d) it becomes a magnet
26. 26.⚡ A rubbed comb is held near thermocol bits. What happens? (a) does not move (b) jumps to the comb
27. 27.⚖️ 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) True (b) False
28. 28.⚖️ 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) False (b) True
29. 29.True or false: a magnet is needed for the static comb. (a) True (b) False
30. 30.🧺 Which of these is needed for the static comb? (a) vinegar (b) a mirror (c) dry hair (d) a magnet
31. 31.True or false: dry hair is needed for the static comb. (a) True (b) False
32. 32.🔍 Which is the odd one out? (a) a thin water stream (b) thermocol bits (c) dry hair (d) a steel spoon
33. 33.📘 Rubbing moves tiny charges. What do we call the charge that builds up? (a) static electricity (b) sunlight (c) gravity (d) magnetism
34. 34.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? Which of these is what we measure? (a) paper bits picked up (b) distance to the paper (c) number of rubs (d) the same hair
35. 35.True or false: a thin water stream jumps to a charged comb. (a) True (b) False
36. 36.⚖️ 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 change it (c) we measure it
37. 37.🧺 Do we need turmeric powder for the static comb? (a) needed (b) not needed
38. 38.🔍 Which is the odd one out? (a) a brick (b) puffed rice (c) a steel spoon (d) a heavy book
39. 39.True or false: a battery cell is needed for the static comb. (a) True (b) False
40. 40.🧺 Do we need yeast for the static comb? (a) needed (b) not needed

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