Static Electricity Experiment Worksheet

Science experiments lesson 21: Static electricity: comb and paper bits · Set 227 · 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.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? What do we do with “the paper bit size”? (a) we change it (b) we keep it the same (c) we measure it
2. 2.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) dry hair (b) a plastic comb (c) yeast (d) tiny paper bits
3. 3.⚖️ 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 measure it (c) we change it
4. 4.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? Which of these is kept the same? (a) distance to the paper (b) number of rubs (c) paper bits picked up
5. 5.⚡ 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
6. 6.🛟 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 balloon (d) a rubbed plastic comb
7. 7.⚖️ 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
8. 8.🔍 Which is the odd one out? (a) a heavy book (b) a pebble (c) a steel spoon (d) thermocol bits
9. 9.⚡ 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
10. 10.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) tiny paper bits (b) a mirror (c) a balloon (d) dry hair
11. 11.🔮 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
12. 12.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) a plastic comb (b) a balloon (c) tiny paper bits (d) vinegar
13. 13.⚡ A rubbed comb is held near dry hair. What happens? (a) does not move (b) jumps to the comb
14. 14.True or false: a pebble jumps to a charged comb. (a) True (b) False
15. 15.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? Which of these is the one thing we change? (a) paper bits picked up (b) number of rubs (c) the same hair (d) the paper bit size
16. 16.🔍 Which is the odd one out? (a) a steel spoon (b) puffed rice (c) a heavy book (d) a pebble
17. 17.🛟 There is lightning outside. Where is it safest to be? (a) under a tall tree (b) in an open field (c) on a rooftop (d) indoors
18. 18.⚡ Why does the comb trick work best on a dry day? (a) wet hair is magnetic (b) damp air leaks charge (c) water adds charge (d) dry days are noisy
19. 19.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) a balloon (b) dry hair (c) tiny paper bits (d) a magnet
20. 20.🧺 Do we need dry hair for the static comb? (a) not needed (b) needed
21. 21.🔮 Predict: a charged comb is held near a thin stream of tap water. What happens? (a) the water stops (b) the stream bends (c) the water freezes (d) nothing at all
22. 22.True or false: a thin water stream jumps to a charged comb. (a) False (b) True
23. 23.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? True or false: the same comb is kept the same. (a) True (b) False
24. 24.True or false: a brick jumps to a charged comb. (a) True (b) False
25. 25.🔍 Which is the odd one out? (a) thermocol bits (b) a thin water stream (c) dry hair (d) a pebble
26. 26.🧺 Do we need a magnet for the static comb? (a) needed (b) not needed
27. 27.🧺 Which of these is not needed for the static comb? (a) a balloon (b) a plastic comb (c) tiny paper bits (d) yeast
28. 28.⚡ Which of these does not move to a charged comb? (a) puffed rice (b) a thin water stream (c) tiny paper bits (d) a brick
29. 29.True or false: puffed rice jumps to a charged comb. (a) True (b) False
30. 30.⚡ A rubbed comb is held near a pebble. What happens? (a) jumps to the comb (b) does not move
31. 31.⚡ Which big natural spark is caused by static electricity? (a) lightning (b) the wind (c) a rainbow (d) dew
32. 32.⚖️ 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) True (b) False
33. 33.True or false: a magnet is needed for the static comb. (a) False (b) True
34. 34.⚡ Which of these jumps to a charged comb? (a) a steel spoon (b) a pebble (c) puffed rice (d) a heavy book
35. 35.True or false: a heavy book does not move to a charged comb. (a) False (b) True
36. 36.True or false: a balloon is not needed for the static comb. (a) True (b) False
37. 37.⚡ A rubbed comb is held near tiny paper bits. What happens? (a) jumps to the comb (b) does not move
38. 38.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? Which of these is kept the same? (a) number of rubs (b) the same comb (c) paper bits picked up
39. 39.⚖️ 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 same hair
40. 40.🧺 Do we need yeast for the static comb? (a) not needed (b) needed

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