Static Electricity Experiment Worksheet

Science experiments lesson 21: Static electricity: comb and paper bits · Set 881 · 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? Which of these is what we measure? (a) the same hair (b) the paper bit size (c) number of rubs (d) paper bits picked up
2. 2.⚖️ 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) distance to the paper (c) number of rubs (d) paper bits picked up
3. 3.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? True or false: number of rubs is kept the same. (a) True (b) False
4. 4.⚡ Which of these jumps to a charged comb? (a) a heavy book (b) a brick (c) dry hair (d) a steel spoon
5. 5.🛟 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
6. 6.🔮 Predict: you rub a balloon on dry hair and hold it on a wall. What happens? (a) it turns into water (b) it sticks for a while (c) it bursts at once (d) it falls straight down
7. 7.True or false: yeast is not needed for the static comb. (a) True (b) False
8. 8.⚖️ 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
9. 9.True or false: a magnet is needed for the static comb. (a) True (b) False
10. 10.🔍 Which is the odd one out? (a) a pebble (b) a steel spoon (c) a brick (d) dry hair
11. 11.⚡ Why does the comb trick work best on a dry day? (a) water adds charge (b) dry days are noisy (c) damp air leaks charge (d) wet hair is magnetic
12. 12.🧺 Do we need vinegar for the static comb? (a) not needed (b) needed
13. 13.🔮 Predict: a charged comb is held near a thin stream of tap water. What happens? (a) the stream bends (b) nothing at all (c) the water freezes (d) the water stops
14. 14.🔮 Predict: you wet the comb before trying again. What happens? (a) it lights up (b) it works better (c) it hardly works (d) it becomes a magnet
15. 15.🧺 Do we need a balloon for the static comb? (a) not needed (b) needed
16. 16.🛟 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
17. 17.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? What do we do with “the same hair”? (a) we change it (b) we measure it (c) we keep it the same
18. 18.🧺 Do we need tiny paper bits for the static comb? (a) needed (b) not needed
19. 19.🧺 Which of these is needed for the static comb? (a) a mirror (b) a balloon (c) a battery cell (d) vinegar
20. 20.True or false: a brick jumps to a charged comb. (a) True (b) False
21. 21.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) turmeric powder (b) dry hair (c) a balloon (d) a plastic comb
22. 22.🔍 Which is the odd one out? (a) puffed rice (b) a steel spoon (c) tiny paper bits (d) a thin water stream
23. 23.📘 Rubbing moves tiny charges. What do we call the charge that builds up? (a) static electricity (b) sunlight (c) gravity (d) magnetism
24. 24.True or false: a heavy book jumps to a charged comb. (a) False (b) True
25. 25.⚡ Which of these jumps to a charged comb? (a) a pebble (b) puffed rice (c) a brick (d) a heavy book
26. 26.True or false: a mirror is not needed for the static comb. (a) False (b) True
27. 27.True or false: a steel spoon jumps to a charged comb. (a) True (b) False
28. 28.🧺 Do we need a battery cell for the static comb? (a) not needed (b) needed
29. 29.⚡ Which of these does not move to a charged comb? (a) puffed rice (b) tiny paper bits (c) a thin water stream (d) a steel spoon
30. 30.⚡ A rubbed comb is held near a pebble. What happens? (a) does not move (b) jumps to the comb
31. 31.True or false: a mirror is needed for the static comb. (a) True (b) False
32. 32.True or false: tiny paper bits does not move to a charged comb. (a) True (b) False
33. 33.⚡ Why does the rubbed comb pull the paper bits? (a) it is a magnet (b) it has static charge (c) it is hot (d) it is sticky
34. 34.🧺 Which of these is not needed for the static comb? (a) a balloon (b) a plastic comb (c) dry hair (d) a magnet
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.🔍 Which is the odd one out? (a) thermocol bits (b) a thin water stream (c) a heavy book (d) tiny paper bits
37. 37.⚡ You comb dry hair and hold the comb near tiny paper bits. What happens? (a) nothing happens (b) the bits jump to it (c) they turn blue (d) they turn wet
38. 38.🧺 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) a magnet
39. 39.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? True or false: the same hair is what we measure. (a) True (b) False
40. 40.True or false: turmeric powder is needed for the static comb. (a) True (b) False

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