Static Electricity Experiment Worksheet

Science experiments lesson 21: Static electricity: comb and paper bits · Set 350 · 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.🛟 Static from a comb is safe. Which electricity must children never play with? (a) plug points at home (b) a rubbed plastic comb (c) paper bits on a comb (d) a rubbed balloon
2. 2.🔮 Predict: you rub a balloon on dry hair and hold it on a wall. What happens? (a) it turns into water (b) it sticks for a while (c) it bursts at once (d) it falls straight down
3. 3.True or false: a magnet is needed for the static comb. (a) True (b) False
4. 4.🧺 Do we need tiny paper bits for the static comb? (a) needed (b) not needed
5. 5.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? What do we do with “the same hair”? (a) we keep it the same (b) we change it (c) we measure it
6. 6.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? True or false: distance to the paper is kept the same. (a) False (b) True
7. 7.🔍 Which is the odd one out? (a) a heavy book (b) a pebble (c) a brick (d) thermocol bits
8. 8.⚡ A rubbed comb is held near puffed rice. What happens? (a) does not move (b) jumps to the comb
9. 9.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) tiny paper bits (b) a magnet (c) a plastic comb (d) dry hair
10. 10.⚡ Which of these jumps to a charged comb? (a) a steel spoon (b) a pebble (c) tiny paper bits (d) a heavy book
11. 11.🧺 Which of these is not needed for the static comb? (a) dry hair (b) a battery cell (c) a plastic comb (d) tiny paper bits
12. 12.🧺 Which of these is not needed for the static comb? (a) tiny paper bits (b) dry hair (c) a balloon (d) a mirror
13. 13.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? True or false: number of rubs is kept the same. (a) True (b) False
14. 14.⚖️ 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 measure it (c) we change it
15. 15.⚡ You comb dry hair and hold the comb near tiny paper bits. What happens? (a) nothing happens (b) they turn blue (c) the bits jump to it (d) they turn wet
16. 16.🧺 Do we need a magnet for the static comb? (a) needed (b) not needed
17. 17.⚡ A rubbed comb is held near a heavy book. What happens? (a) does not move (b) jumps to the comb
18. 18.🔍 Which is the odd one out? (a) dry hair (b) puffed rice (c) thermocol bits (d) a brick
19. 19.🔍 Which is the odd one out? (a) puffed rice (b) dry hair (c) tiny paper bits (d) a heavy book
20. 20.⚡ Why does the rubbed comb pull the paper bits? (a) it is hot (b) it is sticky (c) it is a magnet (d) it has static charge
21. 21.🔮 Predict: you wet the comb before trying again. What happens? (a) it becomes a magnet (b) it works better (c) it hardly works (d) it lights up
22. 22.⚖️ 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
23. 23.🧺 Do we need a plastic comb for the static comb? (a) needed (b) not needed
24. 24.🧺 Do we need turmeric powder for the static comb? (a) not needed (b) needed
25. 25.🧺 Do we need a mirror for the static comb? (a) not needed (b) needed
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.🧺 Do we need dry hair for the static comb? (a) not needed (b) needed
28. 28.⚡ Why does the comb trick work best on a dry day? (a) wet hair is magnetic (b) water adds charge (c) damp air leaks charge (d) dry days are noisy
29. 29.True or false: puffed rice does not move to a charged comb. (a) False (b) True
30. 30.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? True or false: the paper bit size is kept the same. (a) False (b) True
31. 31.🧺 Which of these is needed for the static comb? (a) a mirror (b) a magnet (c) a battery cell (d) a plastic comb
32. 32.⚡ Which of these does not move to a charged comb? (a) a steel spoon (b) tiny paper bits (c) puffed rice (d) dry hair
33. 33.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? Which of these is what we measure? (a) distance to the paper (b) the same comb (c) the same hair (d) paper bits picked up
34. 34.⚖️ 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) False (b) True
35. 35.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) dry hair (b) a mirror (c) tiny paper bits (d) a plastic comb
36. 36.📘 Rubbing moves tiny charges. What do we call the charge that builds up? (a) static electricity (b) sunlight (c) gravity (d) magnetism
37. 37.True or false: vinegar is not needed for the static comb. (a) True (b) False
38. 38.🔮 Predict: a charged comb is held near a thin stream of tap water. What happens? (a) nothing at all (b) the stream bends (c) the water stops (d) the water freezes
39. 39.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) yeast (b) tiny paper bits (c) a plastic comb (d) dry hair
40. 40.⚖️ 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

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