Static Electricity Experiment Worksheet

Science experiments lesson 21: Static electricity: comb and paper bits · Set 777 · 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 jumps to a charged comb? (a) a steel spoon (b) puffed rice (c) a brick (d) a heavy book
2. 2.🧺 Which of these is needed for the static comb? (a) dry hair (b) yeast (c) vinegar (d) a magnet
3. 3.⚖️ 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
4. 4.🛟 There is lightning outside. Where is it safest to be? (a) in an open field (b) under a tall tree (c) indoors (d) on a rooftop
5. 5.🔮 Predict: you wet the comb before trying again. What happens? (a) it works better (b) it becomes a magnet (c) it lights up (d) it hardly works
6. 6.⚡ Which of these does not move to a charged comb? (a) a steel spoon (b) a thin water stream (c) dry hair (d) thermocol bits
7. 7.🧺 Do we need yeast for the static comb? (a) not needed (b) needed
8. 8.⚡ Which big natural spark is caused by static electricity? (a) dew (b) the wind (c) a rainbow (d) lightning
9. 9.🧺 Do we need turmeric powder for the static comb? (a) not needed (b) needed
10. 10.⚡ A rubbed comb is held near tiny paper bits. What happens? (a) does not move (b) jumps to the comb
11. 11.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) tiny paper bits (b) dry hair (c) a plastic comb (d) a mirror
12. 12.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) dry hair (b) a balloon (c) yeast (d) a plastic comb
13. 13.🔮 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 stream bends (d) the water stops
14. 14.True or false: yeast is not needed for the static comb. (a) False (b) True
15. 15.True or false: a thin water stream does not move to a charged comb. (a) True (b) False
16. 16.⚖️ 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
17. 17.🛟 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
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.True or false: tiny paper bits jumps to a charged comb. (a) True (b) False
20. 20.⚖️ 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
21. 21.⚡ Which of these does not move to a charged comb? (a) tiny paper bits (b) thermocol bits (c) dry hair (d) a heavy book
22. 22.🔍 Which is the odd one out? (a) a brick (b) a pebble (c) tiny paper bits (d) a heavy book
23. 23.⚖️ 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 same comb (c) the paper bit size (d) paper bits picked up
24. 24.⚡ Why does the comb trick work best on a dry day? (a) wet hair is magnetic (b) water adds charge (c) dry days are noisy (d) damp air leaks charge
25. 25.True or false: dry hair is needed for the static comb. (a) True (b) False
26. 26.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? Which of these is the one thing we change? (a) the same comb (b) paper bits picked up (c) the same hair (d) number of rubs
27. 27.🔮 Predict: you rub a balloon on dry hair and hold it on a wall. What happens? (a) it falls straight down (b) it sticks for a while (c) it bursts at once (d) it turns into water
28. 28.⚡ Which of these does not move to a charged comb? (a) a brick (b) a thin water stream (c) puffed rice (d) dry hair
29. 29.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) a magnet (b) a balloon (c) tiny paper bits (d) a plastic comb
30. 30.True or false: a steel spoon does not move to a charged comb. (a) False (b) True
31. 31.🧺 Do we need a battery cell for the static comb? (a) needed (b) not needed
32. 32.True or false: a brick does not move to a charged comb. (a) False (b) True
33. 33.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? True or false: distance to the paper is kept the same. (a) True (b) False
34. 34.🧺 Do we need tiny paper bits for the static comb? (a) not needed (b) needed
35. 35.⚡ You comb dry hair and hold the comb near tiny paper bits. What happens? (a) they turn blue (b) the bits jump to it (c) nothing happens (d) they turn wet
36. 36.True or false: tiny paper bits is not needed for the static comb. (a) True (b) False
37. 37.⚡ A rubbed comb is held near a heavy book. What happens? (a) does not move (b) jumps to the comb
38. 38.True or false: a battery cell is needed for the static comb. (a) True (b) False
39. 39.True or false: turmeric powder is not needed for the static comb. (a) False (b) True
40. 40.⚡ A rubbed comb is held near a brick. What happens? (a) does not move (b) jumps to the comb

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