Static Electricity Experiment Worksheet

Science experiments lesson 21: Static electricity: comb and paper bits · Set 139 · 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? What do we do with “the same hair”? (a) we keep it the same (b) we measure it (c) we change it
2. 2.🧺 Which of these is needed for the static comb? (a) a battery cell (b) turmeric powder (c) dry hair (d) yeast
3. 3.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) a balloon (b) dry hair (c) a plastic comb (d) yeast
4. 4.⚖️ 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
5. 5.True or false: a balloon is not needed for the static comb. (a) True (b) False
6. 6.🔍 Which is the odd one out? (a) a thin water stream (b) a pebble (c) dry hair (d) tiny paper bits
7. 7.🧺 Do we need a battery cell for the static comb? (a) needed (b) not needed
8. 8.🔮 Predict: you wet the comb before trying again. What happens? (a) it becomes a magnet (b) it hardly works (c) it lights up (d) it works better
9. 9.🧺 Do we need a magnet for the static comb? (a) needed (b) not needed
10. 10.🔮 Predict: a charged comb is held near a thin stream of tap water. What happens? (a) the stream bends (b) nothing at all (c) the water stops (d) the water freezes
11. 11.⚡ Why does the rubbed comb pull the paper bits? (a) it is a magnet (b) it is sticky (c) it has static charge (d) it is hot
12. 12.⚡ Which of these jumps to a charged comb? (a) a pebble (b) a brick (c) a thin water stream (d) a steel spoon
13. 13.🧺 Do we need a plastic comb for the static comb? (a) needed (b) not needed
14. 14.🔍 Which is the odd one out? (a) a heavy book (b) a brick (c) a thin water stream (d) a steel spoon
15. 15.⚖️ 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
16. 16.⚡ Which of these does not move to a charged comb? (a) a pebble (b) a thin water stream (c) tiny paper bits (d) puffed rice
17. 17.⚡ Which of these does not move to a charged comb? (a) a heavy book (b) dry hair (c) thermocol bits (d) tiny paper bits
18. 18.⚡ A rubbed comb is held near a heavy book. What happens? (a) jumps to the comb (b) does not move
19. 19.⚖️ 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
20. 20.⚡ You comb dry hair and hold the comb near tiny paper bits. What happens? (a) they turn blue (b) nothing happens (c) they turn wet (d) the bits jump to it
21. 21.True or false: a pebble jumps to a charged comb. (a) True (b) False
22. 22.True or false: a thin water stream jumps to a charged comb. (a) False (b) True
23. 23.⚡ A rubbed comb is held near a thin water stream. What happens? (a) jumps to the comb (b) does not move
24. 24.🧺 Do we need yeast for the static comb? (a) not needed (b) needed
25. 25.🛟 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
26. 26.🛟 Static from a comb is safe. Which electricity must children never play with? (a) a rubbed balloon (b) a rubbed plastic comb (c) plug points at home (d) paper bits on a comb
27. 27.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? Which of these is what we measure? (a) paper bits picked up (b) the same comb (c) distance to the paper (d) the paper bit size
28. 28.🧺 Which of these is not needed for the static comb? (a) a balloon (b) dry hair (c) tiny paper bits (d) turmeric powder
29. 29.⚡ Why does the comb trick work best on a dry day? (a) dry days are noisy (b) damp air leaks charge (c) wet hair is magnetic (d) water adds charge
30. 30.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? True or false: the paper bit size is the one thing we change. (a) True (b) False
31. 31.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? Which of these is kept the same? (a) the same hair (b) number of rubs (c) paper bits picked up
32. 32.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) a balloon (b) a magnet (c) a plastic comb (d) dry hair
33. 33.🧺 Which of these is not needed for the static comb? (a) a balloon (b) a plastic comb (c) dry hair (d) yeast
34. 34.⚡ A rubbed comb is held near puffed rice. What happens? (a) does not move (b) jumps to the comb
35. 35.🔮 Predict: you rub a balloon on dry hair and hold it on a wall. What happens? (a) it bursts at once (b) it falls straight down (c) it sticks for a while (d) it turns into water
36. 36.True or false: vinegar is needed for the static comb. (a) False (b) True
37. 37.True or false: a heavy book jumps to a charged comb. (a) True (b) False
38. 38.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? What do we do with “distance to the paper”? (a) we measure it (b) we keep it the same (c) we change it
39. 39.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? True or false: paper bits picked up is kept the same. (a) False (b) True
40. 40.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? What do we do with “paper bits picked up”? (a) we change it (b) we keep it the same (c) we measure it

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