Static Electricity Experiment Worksheet

Science experiments lesson 21: Static electricity: comb and paper bits · Set 479 · 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 same comb”? (a) we change it (b) we measure it (c) we keep it the same
2. 2.⚡ Why does the rubbed comb pull the paper bits? (a) it is hot (b) it has static charge (c) it is a magnet (d) it is sticky
3. 3.🧺 Which of these is needed for the static comb? (a) yeast (b) turmeric powder (c) a magnet (d) a plastic comb
4. 4.⚡ You comb dry hair and hold the comb near tiny paper bits. What happens? (a) the bits jump to it (b) they turn blue (c) they turn wet (d) nothing happens
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.🔍 Which is the odd one out? (a) a pebble (b) dry hair (c) a steel spoon (d) a heavy book
7. 7.🔍 Which is the odd one out? (a) a brick (b) a pebble (c) a heavy book (d) a thin water stream
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 hair (b) number of rubs (c) the same comb (d) distance to the paper
9. 9.🧺 Which of these is not needed for the static comb? (a) a plastic comb (b) yeast (c) tiny paper bits (d) a balloon
10. 10.⚖️ 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
11. 11.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) a balloon (b) tiny paper bits (c) a battery cell (d) dry hair
12. 12.⚡ A rubbed comb is held near puffed rice. What happens? (a) does not move (b) jumps to the comb
13. 13.🛟 There is lightning outside. Where is it safest to be? (a) in an open field (b) on a rooftop (c) indoors (d) under a tall tree
14. 14.True or false: a plastic comb is not needed for the static comb. (a) True (b) False
15. 15.⚡ Why does the comb trick work best on a dry day? (a) water adds charge (b) dry days are noisy (c) damp air leaks charge (d) wet hair is magnetic
16. 16.True or false: dry hair is not needed for the static comb. (a) False (b) True
17. 17.⚡ Which of these does not move to a charged comb? (a) a thin water stream (b) dry hair (c) a pebble (d) puffed rice
18. 18.🧺 Do we need a plastic comb for the static comb? (a) not needed (b) needed
19. 19.⚡ A rubbed comb is held near a heavy book. What happens? (a) does not move (b) jumps to the comb
20. 20.True or false: a thin water stream does not move to a charged comb. (a) False (b) True
21. 21.🧺 Which of these is not needed for the static comb? (a) dry hair (b) a balloon (c) tiny paper bits (d) vinegar
22. 22.True or false: tiny paper bits jumps to a charged comb. (a) False (b) True
23. 23.⚖️ 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 paper bit size (c) paper bits picked up
24. 24.True or false: a pebble does not move to a charged comb. (a) True (b) False
25. 25.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) dry hair (b) yeast (c) tiny paper bits (d) a plastic comb
26. 26.⚖️ 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
27. 27.⚖️ 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) the same hair (c) distance to the paper (d) paper bits picked up
28. 28.📘 Rubbing moves tiny charges. What do we call the charge that builds up? (a) gravity (b) sunlight (c) static electricity (d) magnetism
29. 29.🔮 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
30. 30.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? True or false: the same hair is kept the same. (a) True (b) False
31. 31.🧺 Do we need dry hair for the static comb? (a) not needed (b) needed
32. 32.⚡ Which big natural spark is caused by static electricity? (a) lightning (b) a rainbow (c) the wind (d) dew
33. 33.True or false: a steel spoon jumps to a charged comb. (a) True (b) False
34. 34.True or false: turmeric powder is not needed for the static comb. (a) False (b) True
35. 35.🧺 Do we need vinegar for the static comb? (a) needed (b) not needed
36. 36.True or false: turmeric powder is needed for the static comb. (a) False (b) True
37. 37.True or false: a battery cell is needed for the static comb. (a) True (b) False
38. 38.⚡ Which of these jumps to a charged comb? (a) a steel spoon (b) a heavy book (c) tiny paper bits (d) a pebble
39. 39.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? What do we do with “paper bits picked up”? (a) we keep it the same (b) we change it (c) we measure it
40. 40.🔮 Predict: a charged comb is held near a thin stream of tap water. What happens? (a) the water freezes (b) nothing at all (c) the stream bends (d) the water stops

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