Static Electricity Experiment Worksheet

Science experiments lesson 21: Static electricity: comb and paper bits · Set 303 · 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.🔍 Which is the odd one out? (a) a steel spoon (b) thermocol bits (c) dry hair (d) a thin water stream
2. 2.🛟 There is lightning outside. Where is it safest to be? (a) indoors (b) in an open field (c) under a tall tree (d) on a rooftop
3. 3.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) a magnet (b) dry hair (c) a balloon (d) a plastic comb
4. 4.⚡ A rubbed comb is held near a steel spoon. What happens? (a) does not move (b) jumps to the comb
5. 5.True or false: a steel spoon jumps to a charged comb. (a) True (b) False
6. 6.⚡ A rubbed comb is held near a brick. What happens? (a) does not move (b) jumps to the comb
7. 7.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? What do we do with “distance to the paper”? (a) we keep it the same (b) we change it (c) we measure it
8. 8.⚡ Which of these does not move to a charged comb? (a) thermocol bits (b) a brick (c) a thin water stream (d) tiny paper bits
9. 9.🧺 Which of these is not needed for the static comb? (a) a battery cell (b) dry hair (c) tiny paper bits (d) a balloon
10. 10.⚖️ 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
11. 11.🧺 Which of these is not needed for the static comb? (a) dry hair (b) vinegar (c) a plastic comb (d) tiny paper bits
12. 12.True or false: tiny paper bits is not needed for the static comb. (a) True (b) False
13. 13.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? Which of these is what we measure? (a) paper bits picked up (b) the same hair (c) the paper bit size (d) number of rubs
14. 14.⚡ Why does the comb trick work best on a dry day? (a) water adds charge (b) damp air leaks charge (c) dry days are noisy (d) wet hair is magnetic
15. 15.True or false: a brick jumps to a charged comb. (a) True (b) False
16. 16.🔮 Predict: you wet the comb before trying again. What happens? (a) it hardly works (b) it lights up (c) it becomes a magnet (d) it works better
17. 17.⚖️ 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) the same hair (c) paper bits picked up
18. 18.True or false: a pebble jumps to a charged comb. (a) False (b) True
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 change it (b) we measure it (c) we keep it the same
20. 20.⚡ A rubbed comb is held near puffed rice. What happens? (a) does not move (b) jumps to the comb
21. 21.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) tiny paper bits (b) a mirror (c) dry hair (d) a plastic comb
22. 22.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) turmeric powder (b) a balloon (c) a plastic comb (d) dry hair
23. 23.🧺 Which of these is needed for the static comb? (a) tiny paper bits (b) yeast (c) a mirror (d) turmeric powder
24. 24.🔮 Predict: you rub a balloon on dry hair and hold it on a wall. What happens? (a) it falls straight down (b) it turns into water (c) it bursts at once (d) it sticks for a while
25. 25.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? True or false: the same hair is kept the same. (a) False (b) True
26. 26.📘 Rubbing moves tiny charges. What do we call the charge that builds up? (a) magnetism (b) gravity (c) static electricity (d) sunlight
27. 27.🧺 Do we need yeast for the static comb? (a) needed (b) not needed
28. 28.⚡ Which of these jumps to a charged comb? (a) a brick (b) a heavy book (c) puffed rice (d) a pebble
29. 29.True or false: dry hair jumps to a charged comb. (a) False (b) True
30. 30.🧺 Which of these is not needed for the static comb? (a) a balloon (b) a magnet (c) dry hair (d) a plastic comb
31. 31.🛟 Static from a comb is safe. Which electricity must children never play with? (a) a rubbed balloon (b) a rubbed plastic comb (c) paper bits on a comb (d) plug points at home
32. 32.🔮 Predict: a charged comb is held near a thin stream of tap water. What happens? (a) nothing at all (b) the water freezes (c) the water stops (d) the stream bends
33. 33.🧺 Do we need a magnet for the static comb? (a) not needed (b) needed
34. 34.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? What do we do with “the same comb”? (a) we measure it (b) we keep it the same (c) we change it
35. 35.⚡ A rubbed comb is held near a heavy book. What happens? (a) does not move (b) jumps to the comb
36. 36.⚖️ 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) paper bits picked up (d) distance to the paper
37. 37.🧺 Do we need turmeric powder for the static comb? (a) not needed (b) needed
38. 38.⚡ A rubbed comb is held near a thin water stream. What happens? (a) does not move (b) jumps to the comb
39. 39.🔍 Which is the odd one out? (a) a heavy book (b) a pebble (c) a steel spoon (d) puffed rice
40. 40.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? True or false: the same comb is kept the same. (a) True (b) False

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