Static Electricity Experiment Worksheet

Science experiments lesson 21: Static electricity: comb and paper bits · Set 87 · 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? True or false: number of rubs is the one thing we change. (a) True (b) False
2. 2.🛟 Static from a comb is safe. Which electricity must children never play with? (a) a rubbed plastic comb (b) paper bits on a comb (c) a rubbed balloon (d) plug points at home
3. 3.🛟 There is lightning outside. Where is it safest to be? (a) under a tall tree (b) in an open field (c) on a rooftop (d) indoors
4. 4.🧺 Do we need a balloon for the static comb? (a) needed (b) not needed
5. 5.⚡ Which big natural spark is caused by static electricity? (a) lightning (b) the wind (c) a rainbow (d) dew
6. 6.🧺 Do we need yeast for the static comb? (a) not needed (b) needed
7. 7.True or false: turmeric powder is not needed for the static comb. (a) False (b) True
8. 8.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) yeast (b) a plastic comb (c) a balloon (d) tiny paper bits
9. 9.🔍 Which is the odd one out? (a) a pebble (b) thermocol bits (c) a brick (d) a steel spoon
10. 10.🧺 Do we need tiny paper bits for the static comb? (a) not needed (b) needed
11. 11.True or false: turmeric powder is needed for the static comb. (a) True (b) False
12. 12.⚡ 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
13. 13.True or false: a steel spoon jumps to a charged comb. (a) True (b) False
14. 14.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? True or false: the same comb is the one thing we change. (a) True (b) False
15. 15.🧺 Do we need a mirror for the static comb? (a) needed (b) not needed
16. 16.🧺 Which of these is needed for the static comb? (a) a magnet (b) dry hair (c) turmeric powder (d) vinegar
17. 17.🧺 Do we need a plastic comb for the static comb? (a) needed (b) not needed
18. 18.🔍 Which is the odd one out? (a) a brick (b) a heavy book (c) dry hair (d) a pebble
19. 19.🔍 Which is the odd one out? (a) puffed rice (b) a thin water stream (c) a brick (d) thermocol bits
20. 20.⚖️ 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 comb (b) the same hair (c) paper bits picked up (d) number of rubs
21. 21.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) a balloon (b) dry hair (c) a battery cell (d) tiny paper bits
22. 22.⚖️ 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
23. 23.True or false: tiny paper bits jumps to a charged comb. (a) True (b) False
24. 24.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) dry hair (b) a magnet (c) a balloon (d) a plastic comb
25. 25.⚖️ 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 measure it (c) we keep it the same
26. 26.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? True or false: distance to the paper is what we measure. (a) True (b) False
27. 27.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) turmeric powder (b) dry hair (c) a plastic comb (d) a balloon
28. 28.⚖️ 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
29. 29.⚡ Which of these does not move to a charged comb? (a) dry hair (b) a steel spoon (c) a thin water stream (d) puffed rice
30. 30.True or false: a balloon is not needed for the static comb. (a) True (b) False
31. 31.🔮 Predict: a charged comb is held near a thin stream of tap water. What happens? (a) the stream bends (b) nothing at all (c) the water stops (d) the water freezes
32. 32.🔮 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 sticks for a while (d) it turns into water
33. 33.True or false: tiny paper bits is needed for the static comb. (a) True (b) False
34. 34.⚡ Which of these jumps to a charged comb? (a) a brick (b) a heavy book (c) a steel spoon (d) tiny paper bits
35. 35.⚡ Which of these jumps to a charged comb? (a) a pebble (b) a heavy book (c) a steel spoon (d) a thin water stream
36. 36.🔮 Predict: you wet the comb before trying again. What happens? (a) it becomes a magnet (b) it hardly works (c) it lights up (d) it works better
37. 37.🧺 Which of these is not needed for the static comb? (a) dry hair (b) a battery cell (c) a plastic comb (d) a balloon
38. 38.⚖️ 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 hair
39. 39.📘 Rubbing moves tiny charges. What do we call the charge that builds up? (a) sunlight (b) magnetism (c) gravity (d) static electricity
40. 40.True or false: a mirror is needed for the static comb. (a) False (b) True

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