Static Electricity Experiment Worksheet

Science experiments lesson 21: Static electricity: comb and paper bits · Set 860 · 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.🔮 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 stream bends (d) the water freezes
2. 2.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) dry hair (b) a balloon (c) a plastic comb (d) yeast
3. 3.⚖️ 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) False (b) True
4. 4.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? True or false: the paper bit size is what we measure. (a) False (b) True
5. 5.⚖️ 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
6. 6.🧺 Do we need yeast for the static comb? (a) needed (b) not needed
7. 7.🧺 Do we need a magnet for the static comb? (a) needed (b) not needed
8. 8.⚖️ 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) distance to the paper (c) number of rubs (d) paper bits picked up
9. 9.🛟 There is lightning outside. Where is it safest to be? (a) indoors (b) in an open field (c) on a rooftop (d) under a tall tree
10. 10.True or false: dry hair is needed for the static comb. (a) True (b) False
11. 11.📘 Rubbing moves tiny charges. What do we call the charge that builds up? (a) gravity (b) sunlight (c) static electricity (d) magnetism
12. 12.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? What do we do with “number of rubs”? (a) we change it (b) we measure it (c) we keep it the same
13. 13.🔍 Which is the odd one out? (a) a pebble (b) puffed rice (c) a steel spoon (d) a brick
14. 14.⚡ Which of these jumps to a charged comb? (a) a steel spoon (b) dry hair (c) a brick (d) a pebble
15. 15.⚡ You comb dry hair and hold the comb near tiny paper bits. What happens? (a) they turn wet (b) they turn blue (c) nothing happens (d) the bits jump to it
16. 16.🛟 Static from a comb is safe. Which electricity must children never play with? (a) a rubbed balloon (b) paper bits on a comb (c) plug points at home (d) a rubbed plastic comb
17. 17.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? True or false: the paper bit size is kept the same. (a) False (b) True
18. 18.⚡ Which of these does not move to a charged comb? (a) a thin water stream (b) dry hair (c) puffed rice (d) a steel spoon
19. 19.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) dry hair (b) a plastic comb (c) a battery cell (d) tiny paper bits
20. 20.🔮 Predict: you rub a balloon on dry hair and hold it on a wall. What happens? (a) it falls straight down (b) it sticks for a while (c) it bursts at once (d) it turns into water
21. 21.True or false: a thin water stream does not move to a charged comb. (a) False (b) True
22. 22.True or false: a battery cell is not needed for the static comb. (a) True (b) False
23. 23.True or false: turmeric powder is needed for the static comb. (a) True (b) False
24. 24.🔍 Which is the odd one out? (a) a heavy book (b) a brick (c) a pebble (d) a thin water stream
25. 25.⚖️ 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) paper bits picked up (c) distance to the paper
26. 26.⚡ Which big natural spark is caused by static electricity? (a) a rainbow (b) dew (c) the wind (d) lightning
27. 27.True or false: vinegar is needed for the static comb. (a) False (b) True
28. 28.⚖️ 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
29. 29.🧺 Which of these is not needed for the static comb? (a) tiny paper bits (b) dry hair (c) yeast (d) a balloon
30. 30.🧺 Do we need a plastic comb for the static comb? (a) not needed (b) needed
31. 31.⚡ A rubbed comb is held near tiny paper bits. What happens? (a) does not move (b) jumps to the comb
32. 32.⚖️ 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
33. 33.True or false: tiny paper bits does not move to a charged comb. (a) False (b) True
34. 34.⚖️ 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 measure it (c) we keep it the same
35. 35.⚖️ 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
36. 36.🧺 Which of these is needed for the static comb? (a) vinegar (b) tiny paper bits (c) yeast (d) turmeric powder
37. 37.True or false: a balloon is needed for the static comb. (a) False (b) True
38. 38.⚖️ 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
39. 39.⚡ Why does the rubbed comb pull the paper bits? (a) it is hot (b) it is sticky (c) it is a magnet (d) it has static charge
40. 40.True or false: puffed rice does not move to a charged comb. (a) True (b) False

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