Static Electricity Experiment Worksheet

Science experiments lesson 21: Static electricity: comb and paper bits · Set 154 · 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 a balloon for the static comb? (a) needed (b) not needed
2. 2.🧺 Do we need yeast for the static comb? (a) not needed (b) needed
3. 3.⚡ Why does the comb trick work best on a dry day? (a) wet hair is magnetic (b) dry days are noisy (c) water adds charge (d) damp air leaks charge
4. 4.🔮 Predict: a charged comb is held near a thin stream of tap water. What happens? (a) the water freezes (b) the water stops (c) nothing at all (d) the stream bends
5. 5.True or false: a mirror is not needed for the static comb. (a) False (b) True
6. 6.⚖️ 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
7. 7.⚡ A rubbed comb is held near a steel spoon. What happens? (a) jumps to the comb (b) does not move
8. 8.🧺 Which of these is not needed for the static comb? (a) dry hair (b) tiny paper bits (c) a plastic comb (d) a mirror
9. 9.True or false: turmeric powder is not needed for the static comb. (a) True (b) False
10. 10.⚖️ 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
11. 11.🧺 Do we need turmeric powder for the static comb? (a) not needed (b) needed
12. 12.🧺 Do we need a plastic comb for the static comb? (a) needed (b) not needed
13. 13.🧺 Which of these is needed for the static comb? (a) yeast (b) a mirror (c) a plastic comb (d) turmeric powder
14. 14.⚖️ 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) distance to the paper (c) the same comb (d) paper bits picked up
15. 15.⚡ A rubbed comb is held near tiny paper bits. What happens? (a) does not move (b) jumps to the comb
16. 16.True or false: dry hair is needed for the static comb. (a) False (b) True
17. 17.⚡ You comb dry hair and hold the comb near tiny paper bits. What happens? (a) they turn wet (b) they turn blue (c) the bits jump to it (d) nothing happens
18. 18.True or false: turmeric powder is needed for the static comb. (a) True (b) False
19. 19.🔍 Which is the odd one out? (a) a heavy book (b) a steel spoon (c) a thin water stream (d) a brick
20. 20.⚡ Which big natural spark is caused by static electricity? (a) lightning (b) the wind (c) a rainbow (d) dew
21. 21.🔮 Predict: you wet the comb before trying again. What happens? (a) it becomes a magnet (b) it lights up (c) it hardly works (d) it works better
22. 22.🔍 Which is the odd one out? (a) a heavy book (b) puffed rice (c) a brick (d) a steel spoon
23. 23.🔮 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
24. 24.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) a balloon (b) vinegar (c) dry hair (d) a plastic comb
25. 25.🧺 Do we need a battery cell for the static comb? (a) not needed (b) needed
26. 26.🧺 Do we need a magnet for the static comb? (a) needed (b) not needed
27. 27.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) dry hair (b) tiny paper bits (c) a plastic comb (d) yeast
28. 28.⚡ A rubbed comb is held near puffed rice. What happens? (a) does not move (b) jumps to the comb
29. 29.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) tiny paper bits (b) dry hair (c) a balloon (d) turmeric powder
30. 30.⚡ Why does the rubbed comb pull the paper bits? (a) it is sticky (b) it is hot (c) it has static charge (d) it is a magnet
31. 31.🛟 Static from a comb is safe. Which electricity must children never play with? (a) a rubbed plastic comb (b) a rubbed balloon (c) plug points at home (d) paper bits on a comb
32. 32.⚡ Which of these does not move to a charged comb? (a) tiny paper bits (b) a steel spoon (c) dry hair (d) a thin water stream
33. 33.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? Which of these is the one thing we change? (a) the paper bit size (b) number of rubs (c) the same hair (d) the same comb
34. 34.True or false: dry hair does not move to a charged comb. (a) True (b) False
35. 35.⚡ Which of these jumps to a charged comb? (a) a brick (b) a steel spoon (c) tiny paper bits (d) a pebble
36. 36.🔍 Which is the odd one out? (a) a steel spoon (b) dry hair (c) puffed rice (d) tiny paper bits
37. 37.🔍 Which is the odd one out? (a) a heavy book (b) tiny paper bits (c) dry hair (d) a thin water stream
38. 38.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) a mirror (b) a balloon (c) tiny paper bits (d) dry hair
39. 39.🧺 Do we need tiny paper bits for the static comb? (a) not needed (b) needed
40. 40.⚖️ 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) paper bits picked up (c) the paper bit size

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