Static Electricity Experiment Worksheet

Science experiments lesson 21: Static electricity: comb and paper bits · Set 753 · 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.⚡ A rubbed comb is held near a heavy book. What happens? (a) jumps to the comb (b) does not move
2. 2.🧺 Which of these is needed for the static comb? (a) turmeric powder (b) vinegar (c) a balloon (d) a magnet
3. 3.⚖️ 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
4. 4.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? True or false: distance to the paper is the one thing we change. (a) True (b) False
5. 5.🔮 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 falls straight down (d) it bursts at once
6. 6.🔍 Which is the odd one out? (a) a brick (b) dry hair (c) a pebble (d) a heavy book
7. 7.🔍 Which is the odd one out? (a) a steel spoon (b) tiny paper bits (c) dry hair (d) a thin water stream
8. 8.⚡ Why does the comb trick work best on a dry day? (a) dry days are noisy (b) water adds charge (c) wet hair is magnetic (d) damp air leaks charge
9. 9.⚡ You comb dry hair and hold the comb near tiny paper bits. What happens? (a) they turn blue (b) nothing happens (c) they turn wet (d) the bits jump to it
10. 10.⚖️ 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
11. 11.🧺 Which of these is not needed for the static comb? (a) tiny paper bits (b) yeast (c) a plastic comb (d) dry hair
12. 12.⚖️ 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) the same comb (c) paper bits picked up (d) distance to the paper
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 stops (d) the water freezes
14. 14.⚡ A rubbed comb is held near thermocol bits. What happens? (a) jumps to the comb (b) does not move
15. 15.🔍 Which is the odd one out? (a) a brick (b) a pebble (c) a thin water stream (d) a heavy book
16. 16.True or false: turmeric powder is needed for the static comb. (a) True (b) False
17. 17.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? What do we do with “number of rubs”? (a) we measure it (b) we keep it the same (c) we change it
18. 18.🧺 Do we need a plastic comb for the static comb? (a) not needed (b) needed
19. 19.🔍 Which is the odd one out? (a) a brick (b) a thin water stream (c) tiny paper bits (d) puffed rice
20. 20.True or false: puffed rice does not move to a charged comb. (a) True (b) False
21. 21.🧺 Which of these is needed for the static comb? (a) a plastic comb (b) turmeric powder (c) vinegar (d) a magnet
22. 22.🧺 Which of these is not needed for the static comb? (a) a plastic comb (b) dry hair (c) tiny paper bits (d) a magnet
23. 23.⚡ Which of these jumps to a charged comb? (a) a heavy book (b) a brick (c) a pebble (d) a thin water stream
24. 24.⚖️ 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) False (b) True
25. 25.⚖️ 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) the same comb (c) paper bits picked up (d) number of rubs
26. 26.🛟 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
27. 27.🔮 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
28. 28.⚡ A rubbed comb is held near a pebble. What happens? (a) does not move (b) jumps to the comb
29. 29.🧺 Do we need yeast for the static comb? (a) needed (b) not needed
30. 30.📘 Rubbing moves tiny charges. What do we call the charge that builds up? (a) sunlight (b) magnetism (c) static electricity (d) gravity
31. 31.⚡ A rubbed comb is held near a steel spoon. What happens? (a) jumps to the comb (b) does not move
32. 32.⚖️ 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) True (b) False
33. 33.⚡ Why does the rubbed comb pull the paper bits? (a) it has static charge (b) it is sticky (c) it is hot (d) it is a magnet
34. 34.🧺 Do we need vinegar for the static comb? (a) needed (b) not needed
35. 35.True or false: a mirror is needed for the static comb. (a) True (b) False
36. 36.True or false: a pebble does not move to a charged comb. (a) False (b) True
37. 37.🧺 Which of these is needed for the static comb? (a) vinegar (b) a battery cell (c) tiny paper bits (d) a mirror
38. 38.True or false: a magnet is not needed for the static comb. (a) True (b) False
39. 39.True or false: dry hair is needed for the static comb. (a) True (b) False
40. 40.🛟 There is lightning outside. Where is it safest to be? (a) indoors (b) in an open field (c) on a rooftop (d) under a tall tree

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