Static Electricity Experiment Worksheet

Science experiments lesson 21: Static electricity: comb and paper bits · Set 461 · 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.🛟 Static from a comb is safe. Which electricity must children never play with? (a) paper bits on a comb (b) a rubbed balloon (c) plug points at home (d) a rubbed plastic comb
2. 2.⚡ Why does the rubbed comb pull the paper bits? (a) it is hot (b) it is a magnet (c) it has static charge (d) it is sticky
3. 3.🔮 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 turns into water (d) it bursts at once
4. 4.🧺 Which of these is needed for the static comb? (a) a battery cell (b) a balloon (c) vinegar (d) turmeric powder
5. 5.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) tiny paper bits (b) a plastic comb (c) vinegar (d) dry hair
6. 6.True or false: tiny paper bits is needed for the static comb. (a) False (b) True
7. 7.🧺 Which of these is needed for the static comb? (a) a magnet (b) a battery cell (c) yeast (d) tiny paper bits
8. 8.⚡ Which of these jumps to a charged comb? (a) a heavy book (b) a steel spoon (c) a brick (d) tiny paper bits
9. 9.🧺 Do we need a balloon for the static comb? (a) needed (b) not needed
10. 10.⚖️ 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
11. 11.🔍 Which is the odd one out? (a) puffed rice (b) a heavy book (c) dry hair (d) a thin water stream
12. 12.🧺 Which of these is not needed for the static comb? (a) vinegar (b) a balloon (c) a plastic comb (d) dry hair
13. 13.🧺 Which of these is not needed for the static comb? (a) a plastic comb (b) tiny paper bits (c) dry hair (d) a battery cell
14. 14.⚖️ 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
15. 15.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? What do we do with “the same hair”? (a) we change it (b) we measure it (c) we keep it the same
16. 16.🧺 Do we need a mirror for the static comb? (a) not needed (b) needed
17. 17.True or false: yeast is needed for the static comb. (a) True (b) False
18. 18.🧺 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) turmeric powder
19. 19.⚖️ 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) True (b) False
20. 20.🔮 Predict: a charged comb is held near a thin stream of tap water. What happens? (a) the water stops (b) nothing at all (c) the water freezes (d) the stream bends
21. 21.🧺 Do we need turmeric powder for the static comb? (a) not needed (b) needed
22. 22.🔍 Which is the odd one out? (a) a brick (b) a heavy book (c) thermocol bits (d) a steel spoon
23. 23.True or false: a mirror is needed for the static comb. (a) False (b) True
24. 24.🧺 Do we need a battery cell for the static comb? (a) needed (b) not needed
25. 25.⚡ You comb dry hair and hold the comb near tiny paper bits. What happens? (a) they turn wet (b) they turn blue (c) nothing happens (d) the bits jump to it
26. 26.⚡ Why does the comb trick work best on a dry day? (a) water adds charge (b) damp air leaks charge (c) dry days are noisy (d) wet hair is magnetic
27. 27.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) dry hair (b) a battery cell (c) a plastic comb (d) a balloon
28. 28.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) yeast (b) a plastic comb (c) a balloon (d) dry hair
29. 29.⚡ A rubbed comb is held near a pebble. What happens? (a) jumps to the comb (b) does not move
30. 30.🧺 Which of these is not needed for the static comb? (a) dry hair (b) a plastic comb (c) a mirror (d) a balloon
31. 31.True or false: turmeric powder is needed for the static comb. (a) True (b) False
32. 32.True or false: puffed rice does not move to a charged comb. (a) True (b) False
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 same comb (b) paper bits picked up (c) number of rubs (d) the same hair
34. 34.⚡ Which of these does not move to a charged comb? (a) dry hair (b) puffed rice (c) a pebble (d) thermocol bits
35. 35.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? What do we do with “paper bits picked up”? (a) we measure it (b) we change it (c) we keep it the same
36. 36.⚡ A rubbed comb is held near thermocol bits. What happens? (a) does not move (b) jumps to the comb
37. 37.🔍 Which is the odd one out? (a) a pebble (b) a steel spoon (c) a heavy book (d) tiny paper bits
38. 38.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? True or false: number of rubs is what we measure. (a) False (b) True
39. 39.🧺 Do we need yeast for the static comb? (a) needed (b) not needed
40. 40.⚡ Which of these does not move to a charged comb? (a) a brick (b) tiny paper bits (c) a thin water stream (d) puffed rice

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