Static Electricity Experiment Worksheet

Science experiments lesson 21: Static electricity: comb and paper bits · Set 887 · 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.⚡ A rubbed comb is held near a pebble. What happens? (a) does not move (b) jumps to the comb
2. 2.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) a plastic comb (b) a balloon (c) vinegar (d) tiny paper bits
3. 3.🔮 Predict: you rub a balloon on dry hair and hold it on a wall. What happens? (a) it turns into water (b) it bursts at once (c) it sticks for a while (d) it falls straight down
4. 4.🛟 There is lightning outside. Where is it safest to be? (a) in an open field (b) on a rooftop (c) under a tall tree (d) indoors
5. 5.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) yeast (b) a plastic comb (c) tiny paper bits (d) a balloon
6. 6.True or false: a plastic comb is not needed for the static comb. (a) True (b) False
7. 7.⚡ A rubbed comb is held near tiny paper bits. What happens? (a) does not move (b) jumps to the comb
8. 8.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? What do we do with “number of rubs”? (a) we measure it (b) we keep it the same (c) we change it
9. 9.⚡ Which of these does not move to a charged comb? (a) a pebble (b) tiny paper bits (c) puffed rice (d) a thin water stream
10. 10.⚡ Why does the comb trick work best on a dry day? (a) dry days are noisy (b) wet hair is magnetic (c) water adds charge (d) damp air leaks charge
11. 11.🔮 Predict: you wet the comb before trying again. What happens? (a) it lights up (b) it hardly works (c) it works better (d) it becomes a magnet
12. 12.🔮 Predict: a charged comb is held near a thin stream of tap water. What happens? (a) the water freezes (b) the stream bends (c) nothing at all (d) the water stops
13. 13.True or false: dry hair does not move to a charged comb. (a) True (b) False
14. 14.🔍 Which is the odd one out? (a) a pebble (b) tiny paper bits (c) a thin water stream (d) thermocol bits
15. 15.⚖️ 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
16. 16.True or false: dry hair jumps to a charged comb. (a) True (b) False
17. 17.🧺 Do we need vinegar for the static comb? (a) needed (b) not needed
18. 18.🧺 Which of these is not needed for the static comb? (a) a balloon (b) dry hair (c) a mirror (d) tiny paper bits
19. 19.🧺 Which of these is needed for the static comb? (a) vinegar (b) dry hair (c) a mirror (d) turmeric powder
20. 20.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) a balloon (b) a mirror (c) a plastic comb (d) tiny paper bits
21. 21.⚡ 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
22. 22.🧺 Which of these is needed for the static comb? (a) a mirror (b) a plastic comb (c) turmeric powder (d) a magnet
23. 23.⚡ Which of these does not move to a charged comb? (a) a heavy book (b) dry hair (c) a thin water stream (d) puffed rice
24. 24.⚖️ 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
25. 25.📘 Rubbing moves tiny charges. What do we call the charge that builds up? (a) static electricity (b) magnetism (c) gravity (d) sunlight
26. 26.⚖️ 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) False (b) True
27. 27.🧺 Which of these is not needed for the static comb? (a) a balloon (b) vinegar (c) dry hair (d) a plastic comb
28. 28.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) a plastic comb (b) a balloon (c) tiny paper bits (d) turmeric powder
29. 29.⚖️ 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 paper bit size (c) distance to the paper (d) number of rubs
30. 30.⚡ Which of these does not move to a charged comb? (a) puffed rice (b) a steel spoon (c) thermocol bits (d) dry hair
31. 31.⚡ Which big natural spark is caused by static electricity? (a) lightning (b) dew (c) a rainbow (d) the wind
32. 32.True or false: dry hair is needed for the static comb. (a) False (b) True
33. 33.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) a plastic comb (b) dry hair (c) tiny paper bits (d) a magnet
34. 34.⚡ Which of these jumps to a charged comb? (a) a brick (b) a heavy book (c) dry hair (d) a pebble
35. 35.🧺 Do we need turmeric powder for the static comb? (a) needed (b) not needed
36. 36.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? What do we do with “paper bits picked up”? (a) we measure it (b) we change it (c) we keep it the same
37. 37.True or false: dry hair is not needed for the static comb. (a) True (b) False
38. 38.🔍 Which is the odd one out? (a) a heavy book (b) a pebble (c) a brick (d) tiny paper bits
39. 39.⚡ Which of these jumps to a charged comb? (a) a steel spoon (b) a heavy book (c) a pebble (d) tiny paper bits
40. 40.🧺 Do we need a battery cell for the static comb? (a) needed (b) not needed

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