Static Electricity Experiment Worksheet

Science experiments lesson 21: Static electricity: comb and paper bits · Set 374 · 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.🔍 Which is the odd one out? (a) a heavy book (b) a thin water stream (c) dry hair (d) thermocol bits
2. 2.🛟 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) plug points at home (d) a rubbed balloon
3. 3.🧺 Do we need dry hair for the static comb? (a) not needed (b) needed
4. 4.🔍 Which is the odd one out? (a) a brick (b) a steel spoon (c) a pebble (d) dry hair
5. 5.⚡ Which of these does not move to a charged comb? (a) a thin water stream (b) a brick (c) thermocol bits (d) puffed rice
6. 6.⚡ Which of these jumps to a charged comb? (a) a steel spoon (b) a heavy book (c) a pebble (d) tiny paper bits
7. 7.⚖️ 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
8. 8.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? Which of these is kept the same? (a) the paper bit size (b) number of rubs (c) paper bits picked up
9. 9.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? What do we do with “distance to the paper”? (a) we change it (b) we measure it (c) we keep it the same
10. 10.🔮 Predict: you wet the comb before trying again. What happens? (a) it becomes a magnet (b) it lights up (c) it works better (d) it hardly works
11. 11.🧺 Do we need a balloon for the static comb? (a) needed (b) not needed
12. 12.True or false: a battery cell is not needed for the static comb. (a) True (b) False
13. 13.True or false: a thin water stream jumps to a charged comb. (a) False (b) True
14. 14.🔮 Predict: you rub a balloon on dry hair and hold it on a wall. What happens? (a) it bursts at once (b) it turns into water (c) it falls straight down (d) it sticks for a while
15. 15.True or false: turmeric powder is needed for the static comb. (a) True (b) False
16. 16.⚡ A rubbed comb is held near a brick. What happens? (a) does not move (b) jumps to the comb
17. 17.🧺 Do we need yeast for the static comb? (a) needed (b) not needed
18. 18.⚡ Why does the comb trick work best on a dry day? (a) damp air leaks charge (b) dry days are noisy (c) wet hair is magnetic (d) water adds charge
19. 19.⚡ A rubbed comb is held near a pebble. What happens? (a) does not move (b) jumps to the comb
20. 20.⚡ You comb dry hair and hold the comb near tiny paper bits. What happens? (a) they turn blue (b) the bits jump to it (c) nothing happens (d) they turn wet
21. 21.🛟 There is lightning outside. Where is it safest to be? (a) under a tall tree (b) on a rooftop (c) indoors (d) in an open field
22. 22.🔍 Which is the odd one out? (a) a steel spoon (b) a pebble (c) a brick (d) puffed rice
23. 23.⚖️ 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 same hair
24. 24.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? What do we do with “number of rubs”? (a) we measure it (b) we keep it the same (c) we change it
25. 25.⚖️ 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
26. 26.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? Which of these is the one thing we change? (a) number of rubs (b) the same hair (c) the same comb (d) distance to the paper
27. 27.🧺 Which of these is needed for the static comb? (a) a magnet (b) a plastic comb (c) a battery cell (d) yeast
28. 28.🧺 Which of these is needed for the static comb? (a) vinegar (b) a battery cell (c) a mirror (d) a balloon
29. 29.⚡ Which of these does not move to a charged comb? (a) dry hair (b) a steel spoon (c) tiny paper bits (d) a thin water stream
30. 30.True or false: a pebble does not move to a charged comb. (a) False (b) True
31. 31.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? What do we do with “the same comb”? (a) we change it (b) we measure it (c) we keep it the same
32. 32.⚡ A rubbed comb is held near a heavy book. What happens? (a) does not move (b) jumps to the comb
33. 33.True or false: dry hair is needed for the static comb. (a) False (b) True
34. 34.True or false: vinegar is needed for the static comb. (a) True (b) False
35. 35.⚡ A rubbed comb is held near dry hair. What happens? (a) does not move (b) jumps to the comb
36. 36.⚖️ 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) True (b) False
37. 37.True or false: a brick jumps to a charged comb. (a) True (b) False
38. 38.⚡ 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
39. 39.True or false: puffed rice jumps to a charged comb. (a) False (b) True
40. 40.🧺 Which of these is needed for the static comb? (a) a battery cell (b) vinegar (c) a magnet (d) dry hair

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