Static Electricity Experiment Worksheet

Science experiments lesson 21: Static electricity: comb and paper bits · Set 435 · 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) puffed rice (b) a thin water stream (c) a pebble (d) thermocol bits
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 keep it the same (b) we change it (c) we measure it
3. 3.True or false: tiny paper bits does not move to a charged comb. (a) True (b) False
4. 4.🔮 Predict: you wet the comb before trying again. What happens? (a) it becomes a magnet (b) it hardly works (c) it works better (d) it lights up
5. 5.⚖️ 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 same hair
6. 6.🔮 Predict: you rub a balloon on dry hair and hold it on a wall. What happens? (a) it sticks for a while (b) it bursts at once (c) it turns into water (d) it falls straight down
7. 7.🧺 Do we need a magnet for the static comb? (a) needed (b) not needed
8. 8.⚖️ 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
9. 9.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? Which of these is the one thing we change? (a) distance to the paper (b) number of rubs (c) paper bits picked up (d) the same comb
10. 10.⚡ A rubbed comb is held near tiny paper bits. What happens? (a) jumps to the comb (b) does not move
11. 11.True or false: a mirror is not needed for the static comb. (a) False (b) True
12. 12.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? True or false: the same hair is kept the same. (a) True (b) False
13. 13.🛟 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
14. 14.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) dry hair (b) a mirror (c) a balloon (d) a plastic comb
15. 15.🛟 Static from a comb is safe. Which electricity must children never play with? (a) a rubbed plastic comb (b) a rubbed balloon (c) paper bits on a comb (d) plug points at home
16. 16.🔮 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
17. 17.⚡ A rubbed comb is held near a steel spoon. What happens? (a) does not move (b) jumps to the comb
18. 18.🧺 Which of these is not needed for the static comb? (a) tiny paper bits (b) a mirror (c) a plastic comb (d) a balloon
19. 19.⚡ Which of these does not move to a charged comb? (a) thermocol bits (b) puffed rice (c) a thin water stream (d) a brick
20. 20.True or false: a battery cell is needed for the static comb. (a) True (b) False
21. 21.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? True or false: the same comb is what we measure. (a) False (b) True
22. 22.True or false: turmeric powder is needed for the static comb. (a) False (b) True
23. 23.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? What do we do with “number of rubs”? (a) we keep it the same (b) we change it (c) we measure it
24. 24.🔍 Which is the odd one out? (a) a thin water stream (b) thermocol bits (c) a heavy book (d) puffed rice
25. 25.🧺 Do we need turmeric powder for the static comb? (a) not needed (b) needed
26. 26.🧺 Which of these is not needed for the static comb? (a) dry hair (b) yeast (c) tiny paper bits (d) a balloon
27. 27.⚖️ 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 keep it the same (c) we change it
28. 28.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) dry hair (b) a balloon (c) tiny paper bits (d) a magnet
29. 29.🧺 Which of these is not needed for the static comb? (a) a plastic comb (b) a battery cell (c) dry hair (d) tiny paper bits
30. 30.📘 Rubbing moves tiny charges. What do we call the charge that builds up? (a) sunlight (b) static electricity (c) magnetism (d) gravity
31. 31.True or false: a pebble does not move to a charged comb. (a) False (b) True
32. 32.⚡ Which of these does not move to a charged comb? (a) a pebble (b) dry hair (c) tiny paper bits (d) thermocol bits
33. 33.⚡ Why does the rubbed comb pull the paper bits? (a) it has static charge (b) it is sticky (c) it is a magnet (d) it is hot
34. 34.⚡ A rubbed comb is held near thermocol bits. What happens? (a) does not move (b) jumps to the comb
35. 35.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? What do we do with “distance to the paper”? (a) we measure it (b) we keep it the same (c) we change it
36. 36.🧺 Which of these is needed for the static comb? (a) yeast (b) a magnet (c) a balloon (d) turmeric powder
37. 37.⚡ A rubbed comb is held near a heavy book. What happens? (a) does not move (b) jumps to the comb
38. 38.⚡ A rubbed comb is held near puffed rice. What happens? (a) does not move (b) jumps to the comb
39. 39.⚖️ 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
40. 40.⚡ You comb dry hair and hold the comb near tiny paper bits. What happens? (a) they turn wet (b) nothing happens (c) they turn blue (d) the bits jump to it

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