Static Electricity Experiment Worksheet

Science experiments lesson 21: Static electricity: comb and paper bits · Set 114 · 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.True or false: puffed rice jumps to a charged comb. (a) False (b) True
2. 2.🔮 Predict: you wet the comb before trying again. What happens? (a) it lights up (b) it works better (c) it becomes a magnet (d) it hardly works
3. 3.⚖️ 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) the paper bit size (c) paper bits picked up
4. 4.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) dry hair (b) a plastic comb (c) a balloon (d) a mirror
5. 5.⚡ 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
6. 6.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) a plastic comb (b) tiny paper bits (c) a balloon (d) turmeric powder
7. 7.True or false: a mirror is needed for the static comb. (a) False (b) True
8. 8.⚡ Which big natural spark is caused by static electricity? (a) lightning (b) the wind (c) a rainbow (d) dew
9. 9.🛟 Static from a comb is safe. Which electricity must children never play with? (a) paper bits on a comb (b) plug points at home (c) a rubbed balloon (d) a rubbed plastic comb
10. 10.⚡ A rubbed comb is held near tiny paper bits. What happens? (a) does not move (b) jumps to the comb
11. 11.🧺 Do we need vinegar for the static comb? (a) not needed (b) needed
12. 12.🧺 Which of these is not needed for the static comb? (a) a plastic comb (b) a balloon (c) dry hair (d) a battery cell
13. 13.⚡ Which of these does not move to a charged comb? (a) dry hair (b) tiny paper bits (c) a thin water stream (d) a pebble
14. 14.True or false: a plastic comb is not needed for the static comb. (a) False (b) True
15. 15.True or false: dry hair is needed for the static comb. (a) True (b) False
16. 16.🛟 There is lightning outside. Where is it safest to be? (a) in an open field (b) on a rooftop (c) indoors (d) under a tall tree
17. 17.⚡ Why does the rubbed comb pull the paper bits? (a) it is hot (b) it has static charge (c) it is a magnet (d) it is sticky
18. 18.🔮 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
19. 19.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? Which of these is what we measure? (a) the paper bit size (b) number of rubs (c) paper bits picked up (d) the same comb
20. 20.⚡ Which of these jumps to a charged comb? (a) a pebble (b) a brick (c) a heavy book (d) a thin water stream
21. 21.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) dry hair (b) a plastic comb (c) tiny paper bits (d) a magnet
22. 22.🔮 Predict: a charged comb is held near a thin stream of tap water. What happens? (a) nothing at all (b) the water stops (c) the stream bends (d) the water freezes
23. 23.⚡ You comb dry hair and hold the comb near tiny paper bits. What happens? (a) they turn blue (b) they turn wet (c) nothing happens (d) the bits jump to it
24. 24.🧺 Which of these is needed for the static comb? (a) a mirror (b) vinegar (c) dry hair (d) a magnet
25. 25.⚡ A rubbed comb is held near a pebble. What happens? (a) does not move (b) jumps to the comb
26. 26.⚡ Which of these does not move to a charged comb? (a) puffed rice (b) thermocol bits (c) tiny paper bits (d) a brick
27. 27.🧺 Which of these is needed for the static comb? (a) a magnet (b) tiny paper bits (c) a battery cell (d) vinegar
28. 28.🧺 Do we need a battery cell for the static comb? (a) not needed (b) needed
29. 29.🧺 Do we need tiny paper bits for the static comb? (a) needed (b) not needed
30. 30.🔍 Which is the odd one out? (a) a thin water stream (b) a pebble (c) a brick (d) a heavy book
31. 31.True or false: tiny paper bits is needed for the static comb. (a) False (b) True
32. 32.⚡ A rubbed comb is held near a steel spoon. What happens? (a) jumps to the comb (b) does not move
33. 33.📘 Rubbing moves tiny charges. What do we call the charge that builds up? (a) static electricity (b) gravity (c) sunlight (d) magnetism
34. 34.🧺 Which of these is needed for the static comb? (a) a mirror (b) a balloon (c) a magnet (d) turmeric powder
35. 35.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? What do we do with “the paper bit size”? (a) we change it (b) we keep it the same (c) we measure it
36. 36.True or false: a magnet is not needed for the static comb. (a) True (b) False
37. 37.⚡ Which of these does not move to a charged comb? (a) a heavy book (b) a thin water stream (c) tiny paper bits (d) puffed rice
38. 38.🧺 Which of these is not needed for the static comb? (a) a balloon (b) a plastic comb (c) dry hair (d) yeast
39. 39.🧺 Do we need a mirror for the static comb? (a) needed (b) not needed
40. 40.🧺 Which of these is not needed for the static comb? (a) tiny paper bits (b) a plastic comb (c) a balloon (d) a magnet

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