Static Electricity Experiment Worksheet

Science experiments lesson 21: Static electricity: comb and paper bits · Set 884 · 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: you rub a balloon on dry hair and hold it on a wall. What happens? (a) it falls straight down (b) it bursts at once (c) it turns into water (d) it sticks for a while
2. 2.🧺 Which of these is needed for the static comb? (a) a plastic comb (b) a battery cell (c) turmeric powder (d) yeast
3. 3.🧺 Do we need a battery cell for the static comb? (a) not needed (b) needed
4. 4.⚡ A rubbed comb is held near tiny paper bits. What happens? (a) does not move (b) jumps to the comb
5. 5.🔍 Which is the odd one out? (a) dry hair (b) puffed rice (c) tiny paper bits (d) a heavy book
6. 6.⚡ 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
7. 7.True or false: a steel spoon jumps to a charged comb. (a) True (b) False
8. 8.⚖️ 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
9. 9.🛟 Static from a comb is safe. Which electricity must children never play with? (a) paper bits on a comb (b) a rubbed balloon (c) plug points at home (d) a rubbed plastic comb
10. 10.True or false: a brick jumps to a charged comb. (a) False (b) True
11. 11.🔮 Predict: a charged comb is held near a thin stream of tap water. What happens? (a) the stream bends (b) the water freezes (c) the water stops (d) nothing at all
12. 12.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) dry hair (b) vinegar (c) tiny paper bits (d) a plastic comb
13. 13.🔍 Which is the odd one out? (a) a pebble (b) a heavy book (c) a steel spoon (d) tiny paper bits
14. 14.⚡ Why does the rubbed comb pull the paper bits? (a) it is a magnet (b) it is sticky (c) it is hot (d) it has static charge
15. 15.True or false: a balloon is not needed for the static comb. (a) False (b) True
16. 16.True or false: a battery cell is needed for the static comb. (a) True (b) False
17. 17.⚖️ 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
18. 18.🧺 Do we need yeast for the static comb? (a) needed (b) not needed
19. 19.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? True or false: the same comb is kept the same. (a) False (b) True
20. 20.⚖️ 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
21. 21.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? What do we do with “distance to the paper”? (a) we change it (b) we measure it (c) we keep it the same
22. 22.True or false: a battery cell is not needed for the static comb. (a) True (b) False
23. 23.⚖️ 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
24. 24.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) yeast (b) tiny paper bits (c) dry hair (d) a plastic comb
25. 25.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? True or false: paper bits picked up is the one thing we change. (a) True (b) False
26. 26.🧺 Which of these is needed for the static comb? (a) vinegar (b) dry hair (c) a battery cell (d) yeast
27. 27.🔍 Which is the odd one out? (a) a thin water stream (b) a steel spoon (c) thermocol bits (d) tiny paper bits
28. 28.⚡ A rubbed comb is held near thermocol bits. What happens? (a) jumps to the comb (b) does not move
29. 29.⚡ You comb dry hair and hold the comb near tiny paper bits. What happens? (a) the bits jump to it (b) nothing happens (c) they turn blue (d) they turn wet
30. 30.🛟 There is lightning outside. Where is it safest to be? (a) on a rooftop (b) under a tall tree (c) indoors (d) in an open field
31. 31.⚡ Which of these does not move to a charged comb? (a) a steel spoon (b) thermocol bits (c) dry hair (d) a thin water stream
32. 32.🔮 Predict: you wet the comb before trying again. What happens? (a) it hardly works (b) it works better (c) it lights up (d) it becomes a magnet
33. 33.🧺 Which of these is needed for the static comb? (a) a mirror (b) tiny paper bits (c) vinegar (d) yeast
34. 34.⚖️ 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) False (b) True
35. 35.⚖️ 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) paper bits picked up (d) distance to the paper
36. 36.⚡ A rubbed comb is held near dry hair. What happens? (a) does not move (b) jumps to the comb
37. 37.⚡ Which big natural spark is caused by static electricity? (a) a rainbow (b) lightning (c) the wind (d) dew
38. 38.True or false: tiny paper bits is not needed for the static comb. (a) True (b) False
39. 39.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? True or false: the same hair is what we measure. (a) False (b) True
40. 40.True or false: a magnet is not needed for the static comb. (a) True (b) False

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