Static Electricity Experiment Worksheet

Science experiments lesson 21: Static electricity: comb and paper bits · Set 168 · 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 big natural spark is caused by static electricity? (a) the wind (b) a rainbow (c) lightning (d) dew
2. 2.🧺 Do we need turmeric powder for the static comb? (a) not needed (b) needed
3. 3.🧺 Which of these is needed for the static comb? (a) vinegar (b) a battery cell (c) tiny paper bits (d) a magnet
4. 4.⚡ Why does the rubbed comb pull the paper bits? (a) it is hot (b) it has static charge (c) it is sticky (d) it is a magnet
5. 5.🔮 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
6. 6.🔮 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
7. 7.⚖️ 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) number of rubs (c) the paper bit size
8. 8.🧺 Which of these is needed for the static comb? (a) turmeric powder (b) a magnet (c) dry hair (d) vinegar
9. 9.⚡ A rubbed comb is held near puffed rice. What happens? (a) jumps to the comb (b) does not move
10. 10.🔍 Which is the odd one out? (a) thermocol bits (b) dry hair (c) a thin water stream (d) a steel spoon
11. 11.🛟 There is lightning outside. Where is it safest to be? (a) under a tall tree (b) on a rooftop (c) indoors (d) in an open field
12. 12.⚡ A rubbed comb is held near a heavy book. What happens? (a) jumps to the comb (b) does not move
13. 13.🧺 Do we need tiny paper bits for the static comb? (a) not needed (b) needed
14. 14.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) tiny paper bits (b) a plastic comb (c) dry hair (d) yeast
15. 15.True or false: a plastic comb is needed for the static comb. (a) False (b) True
16. 16.🧺 Do we need vinegar for the static comb? (a) needed (b) not needed
17. 17.⚖️ 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
18. 18.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) turmeric powder (b) a balloon (c) a plastic comb (d) dry hair
19. 19.⚖️ 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 change it (c) we keep it the same
20. 20.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) tiny paper bits (b) dry hair (c) a balloon (d) vinegar
21. 21.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? True or false: distance to the paper is the one thing we change. (a) True (b) False
22. 22.⚡ A rubbed comb is held near a thin water stream. What happens? (a) does not move (b) jumps to the comb
23. 23.🛟 Static from a comb is safe. Which electricity must children never play with? (a) paper bits on a comb (b) a rubbed plastic comb (c) plug points at home (d) a rubbed balloon
24. 24.🔍 Which is the odd one out? (a) a steel spoon (b) a heavy book (c) dry hair (d) a pebble
25. 25.🧺 Do we need a plastic comb for the static comb? (a) not needed (b) needed
26. 26.🧺 Do we need a battery cell for the static comb? (a) needed (b) not needed
27. 27.🧺 Do we need yeast for the static comb? (a) not needed (b) needed
28. 28.True or false: turmeric powder is needed for the static comb. (a) True (b) False
29. 29.🔮 Predict: you wet the comb before trying again. What happens? (a) it becomes a magnet (b) it lights up (c) it hardly works (d) it works better
30. 30.True or false: a brick does not move to a charged comb. (a) True (b) False
31. 31.⚡ 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
32. 32.⚖️ 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
33. 33.True or false: a thin water stream jumps to a charged comb. (a) False (b) True
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) the same hair (c) the paper bit size (d) number of rubs
35. 35.True or false: a steel spoon does not move to a charged comb. (a) False (b) True
36. 36.🧺 Do we need a magnet for the static comb? (a) needed (b) not needed
37. 37.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) a balloon (b) a magnet (c) a plastic comb (d) dry hair
38. 38.🧺 Which of these is needed for the static comb? (a) vinegar (b) a mirror (c) turmeric powder (d) a plastic comb
39. 39.True or false: a pebble does not move to a charged comb. (a) False (b) True
40. 40.🔍 Which is the odd one out? (a) a pebble (b) a steel spoon (c) a heavy book (d) thermocol bits

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