Static Electricity Experiment Worksheet

Science experiments lesson 21: Static electricity: comb and paper bits · Set 857 · 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.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? What do we do with “the same hair”? (a) we measure it (b) we change it (c) we keep it the same
2. 2.⚡ A rubbed comb is held near dry hair. What happens? (a) does not move (b) jumps to the comb
3. 3.🔍 Which is the odd one out? (a) a steel spoon (b) a pebble (c) puffed rice (d) a heavy book
4. 4.🔮 Predict: a charged comb is held near a thin stream of tap water. What happens? (a) the water freezes (b) nothing at all (c) the stream bends (d) the water stops
5. 5.True or false: a battery cell is needed for the static comb. (a) False (b) True
6. 6.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? True or false: number of rubs is what we measure. (a) True (b) False
7. 7.🛟 Static from a comb is safe. Which electricity must children never play with? (a) plug points at home (b) a rubbed plastic comb (c) paper bits on a comb (d) a rubbed balloon
8. 8.🧺 Which of these is needed for the static comb? (a) yeast (b) a balloon (c) turmeric powder (d) a mirror
9. 9.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? True or false: number of rubs is the one thing we change. (a) True (b) False
10. 10.🛟 There is lightning outside. Where is it safest to be? (a) on a rooftop (b) under a tall tree (c) in an open field (d) indoors
11. 11.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) a plastic comb (b) a balloon (c) dry hair (d) a magnet
12. 12.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? Which of these is kept the same? (a) the paper bit size (b) number of rubs (c) paper bits picked up
13. 13.🔍 Which is the odd one out? (a) tiny paper bits (b) a thin water stream (c) a steel spoon (d) dry hair
14. 14.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) tiny paper bits (b) a balloon (c) yeast (d) a plastic comb
15. 15.🧺 Which of these is not needed for the static comb? (a) dry hair (b) a plastic comb (c) tiny paper bits (d) a magnet
16. 16.True or false: a brick does not move to a charged comb. (a) True (b) False
17. 17.⚡ A rubbed comb is held near tiny paper bits. What happens? (a) does not move (b) jumps to the comb
18. 18.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) vinegar (b) a balloon (c) a plastic comb (d) tiny paper bits
19. 19.True or false: yeast is not needed for the static comb. (a) False (b) True
20. 20.🧺 Which of these is needed for the static comb? (a) turmeric powder (b) yeast (c) a magnet (d) a plastic comb
21. 21.⚡ Which of these jumps to a charged comb? (a) a pebble (b) dry hair (c) a steel spoon (d) a brick
22. 22.True or false: dry hair is not needed for the static comb. (a) False (b) True
23. 23.🧺 Which of these is needed for the static comb? (a) yeast (b) turmeric powder (c) tiny paper bits (d) a battery cell
24. 24.🔍 Which is the odd one out? (a) a brick (b) a steel spoon (c) a heavy book (d) a thin water stream
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 turns into water (c) it falls straight down (d) it sticks for a while
26. 26.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? True or false: the same comb is the one thing we change. (a) False (b) True
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) True (b) False
28. 28.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? What do we do with “the paper bit size”? (a) we measure it (b) we keep it the same (c) we change it
29. 29.🧺 Do we need a magnet for the static comb? (a) needed (b) not needed
30. 30.🧺 Which of these is not needed for the static comb? (a) a balloon (b) a plastic comb (c) turmeric powder (d) tiny paper bits
31. 31.🔍 Which is the odd one out? (a) a brick (b) dry hair (c) puffed rice (d) tiny paper bits
32. 32.⚡ Which of these jumps to a charged comb? (a) a steel spoon (b) tiny paper bits (c) a pebble (d) a heavy book
33. 33.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? True or false: distance to the paper is kept the same. (a) False (b) True
34. 34.⚡ Which of these jumps to a charged comb? (a) a pebble (b) thermocol bits (c) a brick (d) a steel spoon
35. 35.🔍 Which is the odd one out? (a) a brick (b) a steel spoon (c) tiny paper bits (d) a pebble
36. 36.🧺 Which of these is not needed for the static comb? (a) a plastic comb (b) a balloon (c) dry hair (d) a battery cell
37. 37.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? What do we do with “paper bits picked up”? (a) we keep it the same (b) we measure it (c) we change it
38. 38.🧺 Which of these is needed for the static comb? (a) turmeric powder (b) a magnet (c) yeast (d) dry hair
39. 39.📘 Rubbing moves tiny charges. What do we call the charge that builds up? (a) static electricity (b) magnetism (c) sunlight (d) gravity
40. 40.🔮 Predict: you wet the comb before trying again. What happens? (a) it becomes a magnet (b) it lights up (c) it works better (d) it hardly works

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