Static Electricity Experiment Worksheet

Science experiments lesson 21: Static electricity: comb and paper bits · Set 944 · 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 dry hair for the static comb? (a) needed (b) not needed
2. 2.⚡ A rubbed comb is held near a thin water stream. What happens? (a) does not move (b) jumps to the comb
3. 3.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? What do we do with “number of rubs”? (a) we keep it the same (b) we change it (c) we measure it
4. 4.🔍 Which is the odd one out? (a) a brick (b) tiny paper bits (c) puffed rice (d) a thin water stream
5. 5.True or false: a steel spoon jumps to a charged comb. (a) False (b) True
6. 6.⚡ 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
7. 7.⚖️ 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 paper bit size (c) distance to the paper (d) the same comb
8. 8.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) a magnet (b) dry hair (c) a plastic comb (d) tiny paper bits
9. 9.🧺 Which of these is needed for the static comb? (a) a battery cell (b) a mirror (c) turmeric powder (d) tiny paper bits
10. 10.🧺 Which of these is not needed for the static comb? (a) a magnet (b) dry hair (c) a plastic comb (d) tiny paper bits
11. 11.⚖️ 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) True (b) False
12. 12.🔮 Predict: you rub a balloon on dry hair and hold it on a wall. What happens? (a) it bursts at once (b) it turns into water (c) it sticks for a while (d) it falls straight down
13. 13.🔍 Which is the odd one out? (a) puffed rice (b) tiny paper bits (c) a pebble (d) thermocol bits
14. 14.⚡ Which big natural spark is caused by static electricity? (a) lightning (b) the wind (c) dew (d) a rainbow
15. 15.⚡ You comb dry hair and hold the comb near tiny paper bits. What happens? (a) they turn wet (b) they turn blue (c) nothing happens (d) the bits jump to it
16. 16.🧺 Do we need a magnet for the static comb? (a) not needed (b) needed
17. 17.True or false: tiny paper bits is not needed for the static comb. (a) True (b) False
18. 18.🧺 Do we need a battery cell for the static comb? (a) needed (b) not needed
19. 19.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? Which of these is what we measure? (a) the same hair (b) number of rubs (c) paper bits picked up (d) the same comb
20. 20.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) a battery cell (b) dry hair (c) a balloon (d) a plastic comb
21. 21.🔮 Predict: a charged comb is held near a thin stream of tap water. What happens? (a) the water freezes (b) the stream bends (c) nothing at all (d) the water stops
22. 22.🧺 Do we need a balloon for the static comb? (a) not needed (b) needed
23. 23.🛟 Static from a comb is safe. Which electricity must children never play with? (a) a rubbed plastic comb (b) plug points at home (c) paper bits on a comb (d) a rubbed balloon
24. 24.⚖️ 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 keep it the same (c) we change it
25. 25.⚡ Which of these does not move to a charged comb? (a) a thin water stream (b) a steel spoon (c) dry hair (d) puffed rice
26. 26.🧺 Which of these is needed for the static comb? (a) a balloon (b) a magnet (c) turmeric powder (d) yeast
27. 27.True or false: turmeric powder is not needed for the static comb. (a) False (b) True
28. 28.⚡ A rubbed comb is held near thermocol bits. What happens? (a) jumps to the comb (b) does not move
29. 29.🧺 Do we need vinegar for the static comb? (a) not needed (b) needed
30. 30.🔮 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
31. 31.True or false: a balloon is not needed for the static comb. (a) False (b) True
32. 32.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) a balloon (b) tiny paper bits (c) a mirror (d) dry hair
33. 33.True or false: a brick jumps to a charged comb. (a) True (b) False
34. 34.🔍 Which is the odd one out? (a) a pebble (b) a brick (c) thermocol bits (d) a steel spoon
35. 35.⚖️ 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
36. 36.🧺 Do we need tiny paper bits for the static comb? (a) needed (b) not needed
37. 37.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? True or false: the same comb is kept the same. (a) False (b) True
38. 38.⚖️ 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 measure it (c) we change it
39. 39.🧺 Which of these is needed for the static comb? (a) a battery cell (b) a mirror (c) dry hair (d) yeast
40. 40.⚡ Which of these jumps to a charged comb? (a) a pebble (b) a brick (c) a heavy book (d) tiny paper bits

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