Static Electricity Experiment Worksheet

Science experiments lesson 21: Static electricity: comb and paper bits · Set 762 · 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? True or false: the same comb is what we measure. (a) False (b) True
2. 2.True or false: a battery cell is not needed for the static comb. (a) True (b) False
3. 3.⚖️ 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
4. 4.🧺 Do we need turmeric powder for the static comb? (a) not needed (b) needed
5. 5.⚡ A rubbed comb is held near a brick. What happens? (a) jumps to the comb (b) does not move
6. 6.True or false: a balloon is not needed for the static comb. (a) True (b) False
7. 7.⚖️ 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
8. 8.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? What do we do with “number of rubs”? (a) we change it (b) we keep it the same (c) we measure it
9. 9.True or false: dry hair does not move to a charged comb. (a) False (b) True
10. 10.🛟 Static from a comb is safe. Which electricity must children never play with? (a) a rubbed plastic comb (b) paper bits on a comb (c) a rubbed balloon (d) plug points at home
11. 11.🧺 Which of these is needed for the static comb? (a) a magnet (b) vinegar (c) a mirror (d) a plastic comb
12. 12.🧺 Do we need tiny paper bits for the static comb? (a) not needed (b) needed
13. 13.🔮 Predict: you wet the comb before trying again. What happens? (a) it works better (b) it lights up (c) it hardly works (d) it becomes a magnet
14. 14.⚡ Which of these jumps to a charged comb? (a) a heavy book (b) a pebble (c) tiny paper bits (d) a brick
15. 15.🔮 Predict: you rub a balloon on dry hair and hold it on a wall. What happens? (a) it turns into water (b) it falls straight down (c) it sticks for a while (d) it bursts at once
16. 16.🧺 Which of these is not needed for the static comb? (a) tiny paper bits (b) turmeric powder (c) a plastic comb (d) dry hair
17. 17.📘 Rubbing moves tiny charges. What do we call the charge that builds up? (a) magnetism (b) gravity (c) static electricity (d) sunlight
18. 18.True or false: a battery cell is needed for the static comb. (a) True (b) False
19. 19.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? True or false: distance to the paper is the one thing we change. (a) False (b) True
20. 20.⚖️ 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) True (b) False
21. 21.True or false: yeast is needed for the static comb. (a) False (b) True
22. 22.⚖️ 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
23. 23.🔍 Which is the odd one out? (a) a brick (b) a heavy book (c) a pebble (d) dry hair
24. 24.True or false: a thin water stream does not move to a charged comb. (a) False (b) True
25. 25.⚡ Which of these jumps to a charged comb? (a) dry hair (b) a steel spoon (c) a pebble (d) a heavy book
26. 26.🔍 Which is the odd one out? (a) a steel spoon (b) puffed rice (c) a thin water stream (d) tiny paper bits
27. 27.⚖️ 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
28. 28.⚡ 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
29. 29.🛟 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
30. 30.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) a balloon (b) tiny paper bits (c) a plastic comb (d) a magnet
31. 31.⚖️ 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
32. 32.⚡ You comb dry hair and hold the comb near tiny paper bits. What happens? (a) nothing happens (b) they turn blue (c) they turn wet (d) the bits jump to it
33. 33.True or false: a heavy book jumps to a charged comb. (a) True (b) False
34. 34.True or false: a brick does not move to a charged comb. (a) False (b) True
35. 35.🔍 Which is the odd one out? (a) tiny paper bits (b) a brick (c) a thin water stream (d) puffed rice
36. 36.🧺 Which of these is not needed for the static comb? (a) tiny paper bits (b) a mirror (c) dry hair (d) a balloon
37. 37.⚡ A rubbed comb is held near tiny paper bits. What happens? (a) does not move (b) jumps to the comb
38. 38.⚖️ 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
39. 39.⚖️ 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 measure it (c) we change it
40. 40.🧺 Do we need a mirror for the static comb? (a) not needed (b) needed

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