Static Electricity Experiment Worksheet

Science experiments lesson 21: Static electricity: comb and paper bits · Set 346 · 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.🛟 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
2. 2.🛟 Static from a comb is safe. Which electricity must children never play with? (a) plug points at home (b) paper bits on a comb (c) a rubbed balloon (d) a rubbed plastic comb
3. 3.🔍 Which is the odd one out? (a) a pebble (b) thermocol bits (c) a brick (d) a steel spoon
4. 4.True or false: a plastic comb is not needed for the static comb. (a) False (b) True
5. 5.True or false: a heavy book does not move to a charged comb. (a) False (b) True
6. 6.🔮 Predict: you rub a balloon on dry hair and hold it on a wall. What happens? (a) it sticks for a while (b) it turns into water (c) it bursts at once (d) it falls straight down
7. 7.True or false: a magnet is needed for the static comb. (a) True (b) False
8. 8.🔮 Predict: you wet the comb before trying again. What happens? (a) it becomes a magnet (b) it works better (c) it hardly works (d) it lights up
9. 9.⚖️ 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
10. 10.True or false: a balloon is not needed for the static comb. (a) True (b) False
11. 11.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? Which of these is the one thing we change? (a) the paper bit size (b) paper bits picked up (c) number of rubs (d) distance to the paper
12. 12.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? What do we do with “number of rubs”? (a) we change it (b) we measure it (c) we keep it the same
13. 13.⚡ A rubbed comb is held near a brick. What happens? (a) does not move (b) jumps to the comb
14. 14.🔍 Which is the odd one out? (a) a thin water stream (b) a brick (c) a heavy book (d) a pebble
15. 15.⚡ Which of these jumps to a charged comb? (a) a brick (b) a steel spoon (c) a heavy book (d) dry hair
16. 16.🧺 Do we need a magnet for the static comb? (a) needed (b) not needed
17. 17.📘 Rubbing moves tiny charges. What do we call the charge that builds up? (a) gravity (b) sunlight (c) static electricity (d) magnetism
18. 18.True or false: dry hair is needed for the static comb. (a) False (b) True
19. 19.True or false: dry hair is not needed for the static comb. (a) True (b) False
20. 20.⚡ Why does the rubbed comb pull the paper bits? (a) it is sticky (b) it has static charge (c) it is a magnet (d) it is hot
21. 21.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) a plastic comb (b) a balloon (c) a mirror (d) tiny paper bits
22. 22.⚖️ 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
23. 23.True or false: a plastic comb is needed for the static comb. (a) True (b) False
24. 24.⚡ A rubbed comb is held near a thin water stream. What happens? (a) jumps to the comb (b) does not move
25. 25.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? What do we do with “distance to the paper”? (a) we keep it the same (b) we measure it (c) we change it
26. 26.⚡ Which of these does not move to a charged comb? (a) dry hair (b) puffed rice (c) tiny paper bits (d) a brick
27. 27.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? True or false: the same comb is what we measure. (a) False (b) True
28. 28.🧺 Do we need vinegar for the static comb? (a) needed (b) not needed
29. 29.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? What do we do with “the same comb”? (a) we change it (b) we keep it the same (c) we measure it
30. 30.⚡ A rubbed comb is held near tiny paper bits. What happens? (a) jumps to the comb (b) does not move
31. 31.⚖️ 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) the paper bit size (c) number of rubs
32. 32.🧺 Which of these is not needed for the static comb? (a) a balloon (b) a plastic comb (c) yeast (d) tiny paper bits
33. 33.🧺 Which of these is not needed for the static comb? (a) a battery cell (b) tiny paper bits (c) a plastic comb (d) a balloon
34. 34.⚖️ 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) the same comb (c) number of rubs
35. 35.🧺 Which of these is needed for the static comb? (a) a battery cell (b) a balloon (c) vinegar (d) a magnet
36. 36.True or false: puffed rice jumps to a charged comb. (a) True (b) False
37. 37.🧺 Which of these is needed for the static comb? (a) a magnet (b) turmeric powder (c) a battery cell (d) a plastic comb
38. 38.🧺 Which of these is needed for the static comb? (a) a mirror (b) vinegar (c) a battery cell (d) dry hair
39. 39.🧺 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
40. 40.🔮 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

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