Static Electricity Experiment Worksheet

Science experiments lesson 21: Static electricity: comb and paper bits · Set 221 · 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? Which of these is what we measure? (a) the paper bit size (b) distance to the paper (c) paper bits picked up (d) the same comb
2. 2.⚖️ 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) number of rubs (d) the paper bit size
3. 3.🧺 Do we need turmeric powder for the static comb? (a) not needed (b) needed
4. 4.🔍 Which is the odd one out? (a) dry hair (b) a heavy book (c) a thin water stream (d) tiny paper bits
5. 5.True or false: vinegar is needed for the static comb. (a) False (b) True
6. 6.True or false: a plastic comb is not needed for the static comb. (a) True (b) False
7. 7.🛟 There is lightning outside. Where is it safest to be? (a) on a rooftop (b) in an open field (c) indoors (d) under a tall tree
8. 8.🧺 Which of these is needed for the static comb? (a) a mirror (b) tiny paper bits (c) a battery cell (d) yeast
9. 9.True or false: turmeric powder is needed for the static comb. (a) True (b) False
10. 10.⚖️ 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
11. 11.⚖️ 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 change it (c) we keep it the same
12. 12.⚡ Which of these jumps to a charged comb? (a) a heavy book (b) a brick (c) a steel spoon (d) puffed rice
13. 13.True or false: a steel spoon jumps to a charged comb. (a) True (b) False
14. 14.🧺 Which of these is not needed for the static comb? (a) turmeric powder (b) dry hair (c) tiny paper bits (d) a plastic comb
15. 15.🔮 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 sticks for a while (d) it turns into water
16. 16.⚡ Which of these does not move to a charged comb? (a) tiny paper bits (b) dry hair (c) a pebble (d) puffed rice
17. 17.🛟 Static from a comb is safe. Which electricity must children never play with? (a) paper bits on a comb (b) a rubbed balloon (c) a rubbed plastic comb (d) plug points at home
18. 18.⚡ Why does the rubbed comb pull the paper bits? (a) it is a magnet (b) it is hot (c) it is sticky (d) it has static charge
19. 19.📘 Rubbing moves tiny charges. What do we call the charge that builds up? (a) gravity (b) static electricity (c) sunlight (d) magnetism
20. 20.🔍 Which is the odd one out? (a) tiny paper bits (b) a pebble (c) thermocol bits (d) puffed rice
21. 21.⚡ A rubbed comb is held near a pebble. What happens? (a) jumps to the comb (b) does not move
22. 22.True or false: a brick jumps to a charged comb. (a) True (b) False
23. 23.⚡ A rubbed comb is held near puffed rice. What happens? (a) does not move (b) jumps to the comb
24. 24.⚡ A rubbed comb is held near tiny paper bits. What happens? (a) jumps to the comb (b) does not move
25. 25.🧺 Do we need a plastic comb for the static comb? (a) not needed (b) needed
26. 26.🧺 Which of these is not needed for the static comb? (a) tiny paper bits (b) a balloon (c) a plastic comb (d) a battery cell
27. 27.🔮 Predict: you wet the comb before trying again. What happens? (a) it hardly works (b) it becomes a magnet (c) it works better (d) it lights up
28. 28.True or false: tiny paper bits is needed for the static comb. (a) True (b) False
29. 29.🔍 Which is the odd one out? (a) a heavy book (b) puffed rice (c) a brick (d) a steel spoon
30. 30.⚖️ 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) False (b) True
31. 31.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) dry hair (b) turmeric powder (c) a balloon (d) tiny paper bits
32. 32.⚡ A rubbed comb is held near thermocol bits. What happens? (a) does not move (b) jumps to the comb
33. 33.⚡ A rubbed comb is held near a brick. What happens? (a) jumps to the comb (b) does not move
34. 34.⚡ A rubbed comb is held near a thin water stream. What happens? (a) does not move (b) jumps to the comb
35. 35.🔮 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
36. 36.True or false: a thin water stream jumps to a charged comb. (a) True (b) False
37. 37.⚡ A rubbed comb is held near a steel spoon. What happens? (a) does not move (b) jumps to the comb
38. 38.🧺 Do we need a mirror for the static comb? (a) needed (b) not needed
39. 39.🧺 Which of these is needed for the static comb? (a) vinegar (b) a magnet (c) yeast (d) a plastic comb
40. 40.⚖️ 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

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