Static Electricity Experiment Worksheet

Science experiments lesson 21: Static electricity: comb and paper bits · Set 741 · 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? Which of these is the one thing we change? (a) the same hair (b) number of rubs (c) distance to the paper (d) paper bits picked up
2. 2.🔍 Which is the odd one out? (a) puffed rice (b) a thin water stream (c) a steel spoon (d) thermocol bits
3. 3.🧺 Which of these is needed for the static comb? (a) yeast (b) turmeric powder (c) vinegar (d) dry hair
4. 4.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? Which of these is what we measure? (a) distance to the paper (b) number of rubs (c) paper bits picked up (d) the paper bit size
5. 5.🧺 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) a battery cell
6. 6.⚡ Why does the comb trick work best on a dry day? (a) wet hair is magnetic (b) dry days are noisy (c) water adds charge (d) damp air leaks charge
7. 7.⚡ A rubbed comb is held near a thin water stream. What happens? (a) jumps to the comb (b) does not move
8. 8.🧺 Do we need yeast for the static comb? (a) needed (b) not needed
9. 9.🧺 Which of these is needed for the static comb? (a) a magnet (b) a balloon (c) turmeric powder (d) a battery cell
10. 10.⚡ Which of these jumps to a charged comb? (a) a steel spoon (b) a pebble (c) puffed rice (d) a heavy book
11. 11.⚖️ 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 keep it the same (c) we measure it
12. 12.⚡ 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
13. 13.⚡ Which of these does not move to a charged comb? (a) puffed rice (b) tiny paper bits (c) a thin water stream (d) a brick
14. 14.🛟 Static from a comb is safe. Which electricity must children never play with? (a) a rubbed plastic comb (b) plug points at home (c) paper bits on a comb (d) a rubbed balloon
15. 15.🔮 Predict: you rub a balloon on dry hair and hold it on a wall. What happens? (a) it sticks for a while (b) it turns into water (c) it bursts at once (d) it falls straight down
16. 16.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? What do we do with “the same hair”? (a) we change it (b) we measure it (c) we keep it the same
17. 17.🔍 Which is the odd one out? (a) a brick (b) a heavy book (c) a thin water stream (d) a pebble
18. 18.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? True or false: distance to the paper is kept the same. (a) True (b) False
19. 19.⚖️ 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
20. 20.🧺 Which of these is not needed for the static comb? (a) tiny paper bits (b) dry hair (c) a plastic comb (d) a magnet
21. 21.⚡ Which of these does not move to a charged comb? (a) dry hair (b) puffed rice (c) a steel spoon (d) tiny paper bits
22. 22.True or false: yeast is not needed for the static comb. (a) True (b) False
23. 23.🔍 Which is the odd one out? (a) tiny paper bits (b) a brick (c) a steel spoon (d) a pebble
24. 24.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) yeast (b) a balloon (c) a plastic comb (d) tiny paper bits
25. 25.⚡ Which of these jumps to a charged comb? (a) a brick (b) thermocol bits (c) a heavy book (d) a steel spoon
26. 26.⚖️ 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
27. 27.⚖️ 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 comb
28. 28.🧺 Do we need tiny paper bits for the static comb? (a) not needed (b) needed
29. 29.🔍 Which is the odd one out? (a) puffed rice (b) tiny paper bits (c) thermocol bits (d) a pebble
30. 30.🛟 There is lightning outside. Where is it safest to be? (a) under a tall tree (b) indoors (c) in an open field (d) on a rooftop
31. 31.⚡ Which of these does not move to a charged comb? (a) tiny paper bits (b) a pebble (c) dry hair (d) puffed rice
32. 32.🔮 Predict: you wet the comb before trying again. What happens? (a) it works better (b) it lights up (c) it hardly works (d) it becomes a magnet
33. 33.⚖️ 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) the paper bit size
34. 34.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) a plastic comb (b) vinegar (c) dry hair (d) tiny paper bits
35. 35.⚡ A rubbed comb is held near thermocol bits. What happens? (a) does not move (b) jumps to the comb
36. 36.⚡ Which big natural spark is caused by static electricity? (a) dew (b) a rainbow (c) lightning (d) the wind
37. 37.True or false: a mirror is needed for the static comb. (a) False (b) True
38. 38.🧺 Do we need dry hair for the static comb? (a) needed (b) not needed
39. 39.⚡ You comb dry hair and hold the comb near tiny paper bits. What happens? (a) nothing happens (b) they turn blue (c) the bits jump to it (d) they turn wet
40. 40.🧺 Do we need a magnet for the static comb? (a) needed (b) not needed

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