Static Electricity Experiment Worksheet

Science experiments lesson 21: Static electricity: comb and paper bits · Set 398 · 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 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
2. 2.⚖️ 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 keep it the same (c) we measure it
3. 3.⚖️ 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) the same comb (c) number of rubs
4. 4.🛟 There is lightning outside. Where is it safest to be? (a) on a rooftop (b) indoors (c) under a tall tree (d) in an open field
5. 5.True or false: a steel spoon does not move to a charged comb. (a) False (b) True
6. 6.True or false: a pebble does not move to a charged comb. (a) True (b) False
7. 7.⚡ Why does the comb trick work best on a dry day? (a) damp air leaks charge (b) wet hair is magnetic (c) water adds charge (d) dry days are noisy
8. 8.🧺 Do we need tiny paper bits for the static comb? (a) not needed (b) needed
9. 9.⚡ A rubbed comb is held near a pebble. What happens? (a) does not move (b) jumps to the comb
10. 10.🧺 Which of these is needed for the static comb? (a) dry hair (b) a magnet (c) turmeric powder (d) a mirror
11. 11.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? Which of these is what we measure? (a) the paper bit size (b) the same hair (c) paper bits picked up (d) distance to the paper
12. 12.🛟 Static from a comb is safe. Which electricity must children never play with? (a) plug points at home (b) a rubbed plastic comb (c) a rubbed balloon (d) paper bits on a comb
13. 13.📘 Rubbing moves tiny charges. What do we call the charge that builds up? (a) magnetism (b) sunlight (c) gravity (d) static electricity
14. 14.True or false: vinegar is needed for the static comb. (a) True (b) False
15. 15.🔍 Which is the odd one out? (a) a steel spoon (b) a pebble (c) dry hair (d) a heavy book
16. 16.🧺 Which of these is needed for the static comb? (a) a mirror (b) vinegar (c) a balloon (d) a magnet
17. 17.🔮 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
18. 18.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) vinegar (b) a balloon (c) a plastic comb (d) dry hair
19. 19.⚡ A rubbed comb is held near puffed rice. What happens? (a) jumps to the comb (b) does not move
20. 20.🧺 Which of these is not needed for the static comb? (a) tiny paper bits (b) a balloon (c) dry hair (d) turmeric powder
21. 21.⚡ Which of these jumps to a charged comb? (a) a heavy book (b) a steel spoon (c) a thin water stream (d) a pebble
22. 22.🧺 Which of these is needed for the static comb? (a) vinegar (b) a battery cell (c) tiny paper bits (d) turmeric powder
23. 23.🧺 Do we need a plastic comb for the static comb? (a) needed (b) not needed
24. 24.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? What do we do with “the same hair”? (a) we measure it (b) we change it (c) we keep it the same
25. 25.True or false: a thin water stream jumps to a charged comb. (a) True (b) False
26. 26.⚖️ 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) the same hair (c) number of rubs (d) the same comb
27. 27.True or false: yeast is not needed for the static comb. (a) True (b) False
28. 28.⚖️ 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) paper bits picked up (c) number of rubs
29. 29.🧺 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 magnet
30. 30.🧺 Do we need turmeric powder for the static comb? (a) not needed (b) needed
31. 31.⚡ Which big natural spark is caused by static electricity? (a) a rainbow (b) the wind (c) dew (d) lightning
32. 32.⚡ Which of these does not move to a charged comb? (a) dry hair (b) a thin water stream (c) tiny paper bits (d) a brick
33. 33.True or false: a pebble jumps to a charged comb. (a) False (b) True
34. 34.🧺 Do we need a magnet for the static comb? (a) needed (b) not needed
35. 35.⚡ A rubbed comb is held near a thin water stream. What happens? (a) does not move (b) jumps to the comb
36. 36.🔍 Which is the odd one out? (a) puffed rice (b) a pebble (c) a heavy book (d) a steel spoon
37. 37.🧺 Which of these is not needed for the static comb? (a) dry hair (b) tiny paper bits (c) a balloon (d) a battery cell
38. 38.True or false: a battery cell is needed for the static comb. (a) True (b) False
39. 39.🔍 Which is the odd one out? (a) puffed rice (b) thermocol bits (c) a brick (d) dry hair
40. 40.🧺 Which of these is needed for the static comb? (a) a magnet (b) a plastic comb (c) turmeric powder (d) a mirror

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