Static Electricity Experiment Worksheet

Science experiments lesson 21: Static electricity: comb and paper bits · Set 737 · 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: paper bits picked up is the one thing we change. (a) False (b) True
2. 2.⚖️ 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
3. 3.🔍 Which is the odd one out? (a) puffed rice (b) a brick (c) a steel spoon (d) a heavy book
4. 4.🔍 Which is the odd one out? (a) a heavy book (b) a steel spoon (c) a thin water stream (d) a pebble
5. 5.⚡ Which of these does not move to a charged comb? (a) a brick (b) thermocol bits (c) a thin water stream (d) dry hair
6. 6.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) tiny paper bits (b) turmeric powder (c) a plastic comb (d) dry hair
7. 7.🔮 Predict: a charged comb is held near a thin stream of tap water. What happens? (a) the water freezes (b) the water stops (c) the stream bends (d) nothing at all
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) True (b) False
9. 9.⚡ You comb dry hair and hold the comb near tiny paper bits. What happens? (a) they turn blue (b) nothing happens (c) the bits jump to it (d) they turn wet
10. 10.True or false: a thin water stream does not move to a charged comb. (a) False (b) True
11. 11.🧺 Do we need turmeric powder for the static comb? (a) needed (b) not needed
12. 12.🧺 Which of these is needed for the static comb? (a) a magnet (b) turmeric powder (c) yeast (d) a plastic comb
13. 13.True or false: puffed rice jumps to a charged comb. (a) False (b) True
14. 14.🔍 Which is the odd one out? (a) a brick (b) dry hair (c) a heavy book (d) a pebble
15. 15.⚡ A rubbed comb is held near a heavy book. What happens? (a) does not move (b) jumps to the comb
16. 16.🔮 Predict: you wet the comb before trying again. What happens? (a) it works better (b) it becomes a magnet (c) it lights up (d) it hardly works
17. 17.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? Which of these is what we measure? (a) the same comb (b) the same hair (c) paper bits picked up (d) the paper bit size
18. 18.📘 Rubbing moves tiny charges. What do we call the charge that builds up? (a) static electricity (b) gravity (c) magnetism (d) sunlight
19. 19.⚡ Why does the comb trick work best on a dry day? (a) water adds charge (b) wet hair is magnetic (c) damp air leaks charge (d) dry days are noisy
20. 20.🛟 There is lightning outside. Where is it safest to be? (a) under a tall tree (b) in an open field (c) on a rooftop (d) indoors
21. 21.🧺 Do we need yeast for the static comb? (a) not needed (b) needed
22. 22.True or false: dry hair is not needed for the static comb. (a) False (b) True
23. 23.True or false: a heavy book jumps to a charged comb. (a) True (b) False
24. 24.⚖️ 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
25. 25.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) a mirror (b) dry hair (c) a plastic comb (d) tiny paper bits
26. 26.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? True or false: the same hair is the one thing we change. (a) False (b) True
27. 27.True or false: a brick does not move to a charged comb. (a) True (b) False
28. 28.⚖️ 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
29. 29.🧺 Which of these is not needed for the static comb? (a) vinegar (b) a plastic comb (c) a balloon (d) dry hair
30. 30.🧺 Which of these is needed for the static comb? (a) a mirror (b) a magnet (c) yeast (d) dry hair
31. 31.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? True or false: the same comb is kept the same. (a) True (b) False
32. 32.🔮 Predict: you rub a balloon on dry hair and hold it on a wall. What happens? (a) it falls straight down (b) it sticks for a while (c) it bursts at once (d) it turns into water
33. 33.⚡ A rubbed comb is held near a steel spoon. What happens? (a) does not move (b) jumps to the comb
34. 34.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? True or false: the same hair is kept the same. (a) False (b) True
35. 35.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) dry hair (b) tiny paper bits (c) a balloon (d) a magnet
36. 36.⚡ Which of these jumps to a charged comb? (a) a heavy book (b) puffed rice (c) a brick (d) a pebble
37. 37.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? True or false: the paper bit size is what we measure. (a) True (b) False
38. 38.🛟 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 balloon (d) a rubbed plastic comb
39. 39.⚖️ 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 change it (c) we keep it the same
40. 40.⚖️ 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

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