Static Electricity Experiment Worksheet

Science experiments lesson 21: Static electricity: comb and paper bits · Set 641 · 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: a brick jumps to a charged comb. (a) False (b) True
2. 2.⚡ A rubbed comb is held near dry hair. What happens? (a) does not move (b) jumps to the comb
3. 3.🧺 Which of these is needed for the static comb? (a) dry hair (b) a magnet (c) turmeric powder (d) a mirror
4. 4.🔮 Predict: a charged comb is held near a thin stream of tap water. What happens? (a) the stream bends (b) the water freezes (c) the water stops (d) nothing at all
5. 5.🔍 Which is the odd one out? (a) puffed rice (b) dry hair (c) a steel spoon (d) a thin water stream
6. 6.True or false: vinegar is not needed for the static comb. (a) False (b) True
7. 7.🧺 Which of these is not needed for the static comb? (a) a plastic comb (b) dry hair (c) a balloon (d) yeast
8. 8.⚡ A rubbed comb is held near tiny paper bits. What happens? (a) does not move (b) jumps to the comb
9. 9.⚡ Which of these jumps to a charged comb? (a) dry hair (b) a pebble (c) a brick (d) a steel spoon
10. 10.⚡ Which of these does not move to a charged comb? (a) puffed rice (b) tiny paper bits (c) a brick (d) thermocol bits
11. 11.🛟 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
12. 12.⚡ Which big natural spark is caused by static electricity? (a) the wind (b) dew (c) a rainbow (d) lightning
13. 13.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? True or false: the paper bit size is what we measure. (a) True (b) False
14. 14.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) dry hair (b) tiny paper bits (c) a magnet (d) a plastic comb
15. 15.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? True or false: the same comb is kept the same. (a) False (b) True
16. 16.⚡ You comb dry hair and hold the comb near tiny paper bits. What happens? (a) nothing happens (b) they turn blue (c) they turn wet (d) the bits jump to it
17. 17.🧺 Do we need dry hair for the static comb? (a) not needed (b) needed
18. 18.⚡ Which of these does not move to a charged comb? (a) puffed rice (b) a steel spoon (c) dry hair (d) thermocol bits
19. 19.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? Which of these is kept the same? (a) paper bits picked up (b) number of rubs (c) the paper bit size
20. 20.⚡ Which of these jumps to a charged comb? (a) a pebble (b) a steel spoon (c) puffed rice (d) a brick
21. 21.🧺 Which of these is needed for the static comb? (a) turmeric powder (b) vinegar (c) a battery cell (d) a balloon
22. 22.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) dry hair (b) yeast (c) tiny paper bits (d) a balloon
23. 23.⚖️ 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 measure it (c) we keep it the same
24. 24.📘 Rubbing moves tiny charges. What do we call the charge that builds up? (a) sunlight (b) magnetism (c) static electricity (d) gravity
25. 25.🔮 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 turns into water (d) it sticks for a while
26. 26.🔮 Predict: you wet the comb before trying again. What happens? (a) it becomes a magnet (b) it hardly works (c) it works better (d) it lights up
27. 27.🧺 Do we need tiny paper bits for the static comb? (a) not needed (b) needed
28. 28.⚡ 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
29. 29.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) dry hair (b) vinegar (c) a balloon (d) a plastic comb
30. 30.🔍 Which is the odd one out? (a) a thin water stream (b) a heavy book (c) a brick (d) a pebble
31. 31.True or false: dry hair jumps to a charged comb. (a) False (b) True
32. 32.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? Which of these is the one thing we change? (a) paper bits picked up (b) the paper bit size (c) number of rubs (d) the same hair
33. 33.🛟 Static from a comb is safe. Which electricity must children never play with? (a) paper bits on a comb (b) a rubbed balloon (c) a rubbed plastic comb (d) plug points at home
34. 34.🔍 Which is the odd one out? (a) a heavy book (b) a brick (c) puffed rice (d) a pebble
35. 35.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? What do we do with “number of rubs”? (a) we keep it the same (b) we change it (c) we measure it
36. 36.⚡ A rubbed comb is held near a heavy book. What happens? (a) jumps to the comb (b) does not move
37. 37.⚡ A rubbed comb is held near a steel spoon. What happens? (a) does not move (b) jumps to the comb
38. 38.🔍 Which is the odd one out? (a) puffed rice (b) tiny paper bits (c) a brick (d) thermocol bits
39. 39.🔍 Which is the odd one out? (a) a pebble (b) tiny paper bits (c) thermocol bits (d) dry hair
40. 40.🧺 Which of these is needed for the static comb? (a) turmeric powder (b) a magnet (c) a mirror (d) a plastic comb

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