Static Electricity Experiment Worksheet

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

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