Static Electricity Experiment Worksheet

Science experiments lesson 21: Static electricity: comb and paper bits · Set 310 · 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 is the odd one out? (a) a heavy book (b) a steel spoon (c) a thin water stream (d) a pebble
2. 2.🧺 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
3. 3.🔮 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
4. 4.🔍 Which is the odd one out? (a) puffed rice (b) thermocol bits (c) a steel spoon (d) a thin water stream
5. 5.True or false: dry hair is not needed for the static comb. (a) True (b) False
6. 6.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) tiny paper bits (b) dry hair (c) a magnet (d) a balloon
7. 7.⚡ Which of these does not move to a charged comb? (a) tiny paper bits (b) a thin water stream (c) a heavy book (d) puffed rice
8. 8.⚖️ 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) distance to the paper
9. 9.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? True or false: the paper bit size is the one thing we change. (a) False (b) True
10. 10.True or false: puffed rice does not move to a charged comb. (a) True (b) False
11. 11.🧺 Which of these is needed for the static comb? (a) turmeric powder (b) yeast (c) vinegar (d) tiny paper bits
12. 12.⚡ Which of these jumps to a charged comb? (a) a steel spoon (b) a thin water stream (c) a brick (d) a heavy book
13. 13.⚖️ 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) distance to the paper (c) number of rubs
14. 14.⚡ Which of these jumps to a charged comb? (a) a heavy book (b) puffed rice (c) a pebble (d) a brick
15. 15.🛟 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
16. 16.True or false: a plastic comb is needed for the static comb. (a) False (b) True
17. 17.⚖️ 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
18. 18.🔮 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
19. 19.True or false: a steel spoon does not move to a charged comb. (a) False (b) True
20. 20.⚡ Why does the rubbed comb pull the paper bits? (a) it is a magnet (b) it has static charge (c) it is sticky (d) it is hot
21. 21.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) yeast (b) a balloon (c) a plastic comb (d) dry hair
22. 22.⚡ Which big natural spark is caused by static electricity? (a) the wind (b) lightning (c) a rainbow (d) dew
23. 23.⚡ A rubbed comb is held near a pebble. What happens? (a) jumps to the comb (b) does not move
24. 24.🔍 Which is the odd one out? (a) a pebble (b) puffed rice (c) dry hair (d) a thin water stream
25. 25.True or false: a magnet is needed for the static comb. (a) True (b) False
26. 26.🧺 Do we need a battery cell for the static comb? (a) needed (b) not needed
27. 27.⚡ A rubbed comb is held near tiny paper bits. What happens? (a) jumps to the comb (b) does not move
28. 28.⚡ You comb dry hair and hold the comb near tiny paper bits. What happens? (a) they turn wet (b) nothing happens (c) the bits jump to it (d) they turn blue
29. 29.True or false: a brick jumps to a charged comb. (a) False (b) True
30. 30.🛟 Static from a comb is safe. Which electricity must children never play with? (a) paper bits on a comb (b) plug points at home (c) a rubbed balloon (d) a rubbed plastic comb
31. 31.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? What do we do with “number of rubs”? (a) we measure it (b) we change it (c) we keep it the same
32. 32.🧺 Which of these is not needed for the static comb? (a) turmeric powder (b) a balloon (c) tiny paper bits (d) a plastic comb
33. 33.⚡ Which of these does not move to a charged comb? (a) puffed rice (b) thermocol bits (c) a thin water stream (d) a steel spoon
34. 34.True or false: yeast is not needed for the static comb. (a) False (b) True
35. 35.True or false: a heavy book jumps to a charged comb. (a) True (b) False
36. 36.True or false: tiny paper bits does not move to a charged comb. (a) False (b) True
37. 37.🧺 Do we need yeast for the static comb? (a) needed (b) not needed
38. 38.🔮 Predict: you wet the comb before trying again. What happens? (a) it lights up (b) it works better (c) it becomes a magnet (d) it hardly works
39. 39.⚡ Which of these jumps to a charged comb? (a) a brick (b) a heavy book (c) thermocol bits (d) a steel spoon
40. 40.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? True or false: distance to the paper is what we measure. (a) False (b) True

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