Static Electricity Experiment Worksheet

Science experiments lesson 21: Static electricity: comb and paper bits · Set 788 · 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 hair is what we measure. (a) False (b) True
2. 2.⚡ Why does the comb trick work best on a dry day? (a) dry days are noisy (b) water adds charge (c) wet hair is magnetic (d) damp air leaks charge
3. 3.🧺 Which of these is not needed for the static comb? (a) a balloon (b) a plastic comb (c) tiny paper bits (d) turmeric powder
4. 4.True or false: a balloon is not needed for the static comb. (a) True (b) False
5. 5.🧺 Which of these is needed for the static comb? (a) a magnet (b) vinegar (c) dry hair (d) a battery cell
6. 6.🧺 Do we need a balloon for the static comb? (a) not needed (b) needed
7. 7.🧺 Which of these is needed for the static comb? (a) a balloon (b) a battery cell (c) a magnet (d) a mirror
8. 8.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? Which of these is the one thing we change? (a) the same hair (b) number of rubs (c) distance to the paper (d) the paper bit size
9. 9.🔮 Predict: you rub a balloon on dry hair and hold it on a wall. What happens? (a) it sticks for a while (b) it falls straight down (c) it bursts at once (d) it turns into water
10. 10.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) dry hair (b) a magnet (c) tiny paper bits (d) a plastic comb
11. 11.⚡ Which big natural spark is caused by static electricity? (a) a rainbow (b) dew (c) lightning (d) the wind
12. 12.⚖️ 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
13. 13.True or false: yeast is not needed for the static comb. (a) True (b) False
14. 14.🧺 Which of these is not needed for the static comb? (a) dry hair (b) vinegar (c) a plastic comb (d) a balloon
15. 15.🛟 There is lightning outside. Where is it safest to be? (a) under a tall tree (b) indoors (c) in an open field (d) on a rooftop
16. 16.🔍 Which is the odd one out? (a) a pebble (b) a brick (c) tiny paper bits (d) a steel spoon
17. 17.⚖️ 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
18. 18.🧺 Which of these is not needed for the static comb? (a) a balloon (b) a battery cell (c) dry hair (d) a plastic comb
19. 19.True or false: a heavy book does not move to a charged comb. (a) False (b) True
20. 20.🔍 Which is the odd one out? (a) tiny paper bits (b) a brick (c) dry hair (d) thermocol bits
21. 21.🔮 Predict: you wet the comb before trying again. What happens? (a) it lights up (b) it works better (c) it hardly works (d) it becomes a magnet
22. 22.⚖️ 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
23. 23.🛟 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
24. 24.⚡ A rubbed comb is held near a heavy book. What happens? (a) does not move (b) jumps to the comb
25. 25.🔮 Predict: a charged comb is held near a thin stream of tap water. What happens? (a) the stream bends (b) the water stops (c) nothing at all (d) the water freezes
26. 26.⚖️ 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) number of rubs (c) the same hair (d) distance to the paper
27. 27.True or false: tiny paper bits is not needed for the static comb. (a) True (b) False
28. 28.True or false: turmeric powder is needed for the static comb. (a) True (b) False
29. 29.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? Which of these is kept the same? (a) distance to the paper (b) number of rubs (c) paper bits picked up
30. 30.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) turmeric powder (b) a plastic comb (c) dry hair (d) a balloon
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.True or false: dry hair is needed for the static comb. (a) False (b) True
33. 33.⚡ Which of these jumps to a charged comb? (a) a brick (b) a heavy book (c) a pebble (d) a thin water stream
34. 34.⚡ Which of these jumps to a charged comb? (a) a heavy book (b) tiny paper bits (c) a pebble (d) a brick
35. 35.True or false: a magnet is needed for the static comb. (a) False (b) True
36. 36.⚡ Which of these jumps to a charged comb? (a) a steel spoon (b) a pebble (c) a heavy book (d) dry hair
37. 37.🔍 Which is the odd one out? (a) a thin water stream (b) puffed rice (c) a steel spoon (d) tiny paper bits
38. 38.🧺 Do we need dry hair for the static comb? (a) not needed (b) needed
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 change it (b) we measure it (c) we keep it the same
40. 40.🧺 Which of these is not needed for the static comb? (a) a plastic comb (b) a magnet (c) a balloon (d) dry hair

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