Static Electricity Experiment Worksheet

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

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