Static Electricity Experiment Worksheet

Science experiments lesson 21: Static electricity: comb and paper bits · Set 689 · 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.True or false: turmeric powder is not needed for the static comb. (a) False (b) True
2. 2.⚖️ 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 change it (c) we measure it
3. 3.🧺 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) a magnet
4. 4.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) a battery cell (b) tiny paper bits (c) a balloon (d) a plastic comb
5. 5.🛟 Static from a comb is safe. Which electricity must children never play with? (a) plug points at home (b) paper bits on a comb (c) a rubbed plastic comb (d) a rubbed balloon
6. 6.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) a balloon (b) dry hair (c) a mirror (d) tiny paper bits
7. 7.True or false: vinegar is needed for the static comb. (a) False (b) True
8. 8.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) dry hair (b) tiny paper bits (c) a balloon (d) turmeric powder
9. 9.True or false: a battery cell is not needed for the static comb. (a) False (b) True
10. 10.⚡ Which big natural spark is caused by static electricity? (a) the wind (b) a rainbow (c) lightning (d) dew
11. 11.🛟 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
12. 12.🔮 Predict: you rub a balloon on dry hair and hold it on a wall. What happens? (a) it turns into water (b) it falls straight down (c) it bursts at once (d) it sticks for a while
13. 13.🧺 Do we need vinegar for the static comb? (a) needed (b) not needed
14. 14.True or false: a steel spoon jumps to a charged comb. (a) True (b) False
15. 15.🧺 Which of these is not needed for the static comb? (a) a balloon (b) tiny paper bits (c) turmeric powder (d) dry hair
16. 16.True or false: a steel spoon does not move to a charged comb. (a) False (b) True
17. 17.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? What do we do with “the same hair”? (a) we keep it the same (b) we change it (c) we measure it
18. 18.🔍 Which is the odd one out? (a) a pebble (b) a heavy book (c) dry hair (d) a steel spoon
19. 19.⚡ Why does the rubbed comb pull the paper bits? (a) it is hot (b) it is sticky (c) it has static charge (d) it is a magnet
20. 20.🔍 Which is the odd one out? (a) thermocol bits (b) tiny paper bits (c) a thin water stream (d) a brick
21. 21.🔮 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
22. 22.⚖️ 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) number of rubs (c) the same hair (d) the paper bit size
23. 23.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? What do we do with “distance to the paper”? (a) we change it (b) we measure it (c) we keep it the same
24. 24.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? Which of these is what we measure? (a) the same comb (b) number of rubs (c) the same hair (d) paper bits picked up
25. 25.⚡ A rubbed comb is held near a brick. What happens? (a) does not move (b) jumps to the comb
26. 26.True or false: yeast is needed for the static comb. (a) False (b) True
27. 27.True or false: a magnet is needed for the static comb. (a) False (b) True
28. 28.🔮 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
29. 29.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? True or false: paper bits picked up is what we measure. (a) False (b) True
30. 30.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? True or false: the same hair is what we measure. (a) True (b) False
31. 31.True or false: a mirror is not needed for the static comb. (a) False (b) True
32. 32.⚖️ 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) True (b) False
33. 33.🧺 Do we need a plastic comb for the static comb? (a) not needed (b) needed
34. 34.True or false: puffed rice does not move to a charged comb. (a) False (b) True
35. 35.⚡ A rubbed comb is held near puffed rice. What happens? (a) does not move (b) jumps to the comb
36. 36.True or false: a brick does not move to a charged comb. (a) True (b) False
37. 37.🧺 Do we need a battery cell for the static comb? (a) needed (b) not needed
38. 38.⚡ A rubbed comb is held near tiny paper bits. What happens? (a) does not move (b) jumps to the comb
39. 39.🧺 Do we need a mirror for the static comb? (a) needed (b) not needed
40. 40.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) tiny paper bits (b) dry hair (c) yeast (d) a plastic comb

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