Static Electricity Experiment Worksheet

Science experiments lesson 21: Static electricity: comb and paper bits · Set 929 · 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 paper bit size (b) distance to the paper (c) number of rubs (d) paper bits picked up
2. 2.🔮 Predict: you wet the comb before trying again. What happens? (a) it works better (b) it lights up (c) it becomes a magnet (d) it hardly works
3. 3.True or false: a pebble does not move to a charged comb. (a) True (b) False
4. 4.⚡ A rubbed comb is held near a thin water stream. What happens? (a) does not move (b) jumps to the comb
5. 5.🔍 Which is the odd one out? (a) a steel spoon (b) a heavy book (c) a pebble (d) a thin water stream
6. 6.⚡ Why does the rubbed comb pull the paper bits? (a) it is sticky (b) it is hot (c) it is a magnet (d) it has static charge
7. 7.⚖️ 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
8. 8.⚖️ 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 hair (c) number of rubs
9. 9.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? True or false: paper bits picked up is the one thing we change. (a) False (b) True
10. 10.🔮 Predict: you rub a balloon on dry hair and hold it on a wall. What happens? (a) it falls straight down (b) it sticks for a while (c) it bursts at once (d) it turns into water
11. 11.🛟 Static from a comb is safe. Which electricity must children never play with? (a) a rubbed balloon (b) a rubbed plastic comb (c) paper bits on a comb (d) plug points at home
12. 12.⚡ A rubbed comb is held near dry hair. What happens? (a) does not move (b) jumps to the comb
13. 13.⚖️ 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
14. 14.🔍 Which is the odd one out? (a) puffed rice (b) tiny paper bits (c) a thin water stream (d) a steel spoon
15. 15.⚡ Which of these does not move to a charged comb? (a) puffed rice (b) a thin water stream (c) a brick (d) tiny paper bits
16. 16.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? True or false: the same hair is the one thing we change. (a) True (b) False
17. 17.⚖️ 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) True (b) False
18. 18.🧺 Which of these is not needed for the static comb? (a) a balloon (b) dry hair (c) a magnet (d) tiny paper bits
19. 19.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) a mirror (b) a plastic comb (c) tiny paper bits (d) a balloon
20. 20.🔍 Which is the odd one out? (a) tiny paper bits (b) puffed rice (c) a brick (d) thermocol bits
21. 21.📘 Rubbing moves tiny charges. What do we call the charge that builds up? (a) magnetism (b) gravity (c) sunlight (d) static electricity
22. 22.🔍 Which is the odd one out? (a) a pebble (b) a steel spoon (c) a brick (d) puffed rice
23. 23.True or false: a magnet is not needed for the static comb. (a) True (b) False
24. 24.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? True or false: number of rubs is kept the same. (a) False (b) True
25. 25.🔮 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
26. 26.⚡ A rubbed comb is held near a pebble. What happens? (a) jumps to the comb (b) does not move
27. 27.True or false: a mirror is needed for the static comb. (a) False (b) True
28. 28.True or false: a plastic comb is needed for the static comb. (a) True (b) False
29. 29.True or false: vinegar is not needed for the static comb. (a) True (b) False
30. 30.⚡ Which of these does not move to a charged comb? (a) a thin water stream (b) puffed rice (c) a pebble (d) dry hair
31. 31.🧺 Do we need dry hair for the static comb? (a) needed (b) not needed
32. 32.🧺 Do we need a plastic comb for the static comb? (a) needed (b) not needed
33. 33.⚡ 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 wet (d) they turn blue
34. 34.True or false: puffed rice jumps to a charged comb. (a) False (b) True
35. 35.True or false: a steel spoon does not move to a charged comb. (a) False (b) True
36. 36.⚖️ 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
37. 37.True or false: tiny paper bits is needed for the static comb. (a) False (b) True
38. 38.⚡ Which of these jumps to a charged comb? (a) a pebble (b) a thin water stream (c) a heavy book (d) a steel spoon
39. 39.⚡ Which big natural spark is caused by static electricity? (a) lightning (b) dew (c) a rainbow (d) the wind
40. 40.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? Which of these is the one thing we change? (a) distance to the paper (b) the same comb (c) number of rubs (d) the paper bit size

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