Static Electricity Experiment Worksheet

Science experiments lesson 21: Static electricity: comb and paper bits · Set 21 · 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.⚡ Why does the rubbed comb pull the paper bits? (a) it has static charge (b) it is sticky (c) it is a magnet (d) it is hot
2. 2.⚖️ 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
3. 3.⚖️ 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) paper bits picked up (c) number of rubs
4. 4.🧺 Do we need turmeric powder for the static comb? (a) not needed (b) needed
5. 5.⚖️ 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 keep it the same (c) we measure it
6. 6.🧺 Do we need a battery cell for the static comb? (a) needed (b) not needed
7. 7.⚡ Which big natural spark is caused by static electricity? (a) the wind (b) dew (c) a rainbow (d) lightning
8. 8.True or false: thermocol bits jumps to a charged comb. (a) False (b) True
9. 9.True or false: dry hair is needed for the static comb. (a) True (b) False
10. 10.True or false: a magnet is not needed for the static comb. (a) True (b) False
11. 11.True or false: yeast is needed for the static comb. (a) True (b) False
12. 12.🔮 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
13. 13.⚖️ 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
14. 14.True or false: a brick jumps to a charged comb. (a) True (b) False
15. 15.⚡ A rubbed comb is held near puffed rice. What happens? (a) does not move (b) jumps to the comb
16. 16.⚡ Which of these jumps to a charged comb? (a) a steel spoon (b) a thin water stream (c) a brick (d) a pebble
17. 17.🧺 Which of these is needed for the static comb? (a) a battery cell (b) turmeric powder (c) yeast (d) a balloon
18. 18.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? What do we do with “the same comb”? (a) we keep it the same (b) we change it (c) we measure it
19. 19.🧺 Do we need yeast for the static comb? (a) needed (b) not needed
20. 20.True or false: a pebble does not move to a charged comb. (a) True (b) False
21. 21.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? What do we do with “paper bits picked up”? (a) we change it (b) we measure it (c) we keep it the same
22. 22.🔍 Which is the odd one out? (a) a brick (b) a steel spoon (c) tiny paper bits (d) a heavy book
23. 23.🔮 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
24. 24.⚖️ 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
25. 25.🧺 Which of these is not needed for the static comb? (a) a balloon (b) dry hair (c) a battery cell (d) tiny paper bits
26. 26.🔍 Which is the odd one out? (a) tiny paper bits (b) dry hair (c) a brick (d) thermocol bits
27. 27.⚡ A rubbed comb is held near a heavy book. What happens? (a) does not move (b) jumps to the comb
28. 28.🛟 Static from a comb is safe. Which electricity must children never play with? (a) a rubbed balloon (b) plug points at home (c) a rubbed plastic comb (d) paper bits on a comb
29. 29.🔍 Which is the odd one out? (a) dry hair (b) a thin water stream (c) a pebble (d) thermocol bits
30. 30.⚡ A rubbed comb is held near tiny paper bits. What happens? (a) jumps to the comb (b) does not move
31. 31.True or false: tiny paper bits does not move to a charged comb. (a) True (b) False
32. 32.🔍 Which is the odd one out? (a) a steel spoon (b) a pebble (c) a heavy book (d) puffed rice
33. 33.🧺 Do we need tiny paper bits for the static comb? (a) not needed (b) needed
34. 34.⚡ Which of these does not move to a charged comb? (a) a thin water stream (b) dry hair (c) a heavy book (d) puffed rice
35. 35.⚖️ 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
36. 36.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) dry hair (b) a plastic comb (c) turmeric powder (d) a balloon
37. 37.⚡ Which of these jumps to a charged comb? (a) a brick (b) a pebble (c) thermocol bits (d) a heavy book
38. 38.True or false: a balloon is not needed for the static comb. (a) False (b) True
39. 39.🛟 There is lightning outside. Where is it safest to be? (a) in an open field (b) under a tall tree (c) on a rooftop (d) indoors
40. 40.📘 Rubbing moves tiny charges. What do we call the charge that builds up? (a) static electricity (b) magnetism (c) sunlight (d) gravity

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