Periscope STEM Project Worksheet

Science experiments lesson 28: Mirror periscope · Set 317 · 40 questions

What you do (Bounce, bounce, see): 1. An adult cuts a window near the top on one side of the carton and near the bottom on the other. 2. Tape one mirror at 45° behind each window, the two mirrors facing each other. 3. Look into the bottom window and adjust the mirrors until the view is clear. 4. Peep over a table or wall — never point it at the Sun.

1. 1.True or false: an empty juice carton is needed for the periscope. (a) True (b) False
2. 2.📘 Light bouncing off a mirror is called ___. (a) refraction (b) magnetism (c) reflection (d) evaporation
3. 3.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) a pencil (b) a magnet (c) two small mirrors (d) an empty juice carton
4. 4.⚖️ Fair test — does the angle of the mirrors change how clearly you see? Which of these is kept the same? (a) how clear the view is (b) the object we look at (c) the angle of the mirrors
5. 5.True or false: a pencil is not needed for the periscope. (a) True (b) False
6. 6.True or false: vinegar is needed for the periscope. (a) True (b) False
7. 7.⚖️ Fair test — does the angle of the mirrors change how clearly you see? What do we do with “the same mirrors”? (a) we change it (b) we keep it the same (c) we measure it
8. 8.🛟 You must never point a periscope or a mirror at ___. (a) the Sun (b) a wall (c) a tree (d) a friend’s toy
9. 9.True or false: vinegar is not needed for the periscope. (a) False (b) True
10. 10.🧺 Do we need a battery cell for the periscope? (a) needed (b) not needed
11. 11.⚖️ Fair test — does the angle of the mirrors change how clearly you see? What do we do with “how clear the view is”? (a) we change it (b) we keep it the same (c) we measure it
12. 12.🔍 Which is the odd one out? (a) still clear water (b) black cloth (c) a mirror (d) aluminium foil
13. 13.🔭 At what angle are the mirrors set in a simple periscope? (a) 10 degrees (b) 90 degrees (c) 180 degrees (d) 45 degrees
14. 14.🔭 Does aluminium foil reflect light well or poorly? (a) reflects light poorly (b) reflects light well
15. 15.🧺 Do we need turmeric powder for the periscope? (a) needed (b) not needed
16. 16.🔮 Predict: you hold a written word up to a mirror. The letters look ___. (a) upside down only (b) in colour (c) flipped left to right (d) much bigger
17. 17.⚖️ Fair test — does the angle of the mirrors change how clearly you see? Which of these is the one thing we change? (a) the object we look at (b) the same light (c) the same mirrors (d) the angle of the mirrors
18. 18.🧺 Do we need an empty juice carton for the periscope? (a) not needed (b) needed
19. 19.🧺 Do we need sticky tape for the periscope? (a) needed (b) not needed
20. 20.⚖️ Fair test — does the angle of the mirrors change how clearly you see? True or false: the same carton is kept the same. (a) True (b) False
21. 21.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) two small mirrors (b) sticky tape (c) a battery cell (d) an empty juice carton
22. 22.🔭 Who uses a periscope to look above the water? (a) a submarine crew (b) a baker (c) a farmer (d) a pilot in a plane
23. 23.🔭 How many times does light bounce off a mirror in a simple periscope?
24. 24.⚖️ Fair test — does the angle of the mirrors change how clearly you see? True or false: the same mirrors is kept the same. (a) False (b) True
25. 25.🔍 Which is the odd one out? (a) a rough wooden board (b) a mirror (c) still clear water (d) aluminium foil
26. 26.⚖️ Fair test — does the angle of the mirrors change how clearly you see? True or false: the same carton is what we measure. (a) False (b) True
27. 27.🔭 Does still clear water reflect light well or poorly? (a) reflects light well (b) reflects light poorly
28. 28.⚖️ Fair test — does the angle of the mirrors change how clearly you see? What do we do with “the object we look at”? (a) we keep it the same (b) we change it (c) we measure it
29. 29.🧺 Do we need vinegar for the periscope? (a) needed (b) not needed
30. 30.True or false: a balloon is needed for the periscope. (a) True (b) False
31. 31.🔭 What does a periscope let you do? (a) see in the dark (b) hear far sounds (c) see over a wall (d) see germs
32. 32.🔭 Which of these reflects light well? (a) dark soil (b) a dull brick (c) black cloth (d) aluminium foil
33. 33.🔭 Which of these reflects light poorly? (a) still clear water (b) a shiny steel plate (c) a mirror (d) a rough wooden board
34. 34.🧺 Do we need a magnet for the periscope? (a) not needed (b) needed
35. 35.🛟 Who should cut the holes in the juice carton? (a) nobody needs to (b) a grown-up (c) the youngest child (d) a friend who is running
36. 36.🔮 Predict: you cover the top mirror with paper. What do you see? (a) only darkness (b) two pictures (c) a rainbow (d) a brighter view
37. 37.True or false: black cloth reflects light poorly. (a) False (b) True
38. 38.🔭 Does a rough wooden board reflect light well or poorly? (a) reflects light poorly (b) reflects light well
39. 39.🧺 Which of these is needed for the periscope? (a) an empty juice carton (b) a battery cell (c) turmeric powder (d) yeast
40. 40.🔍 Which is the odd one out? (a) still clear water (b) a shiny steel plate (c) aluminium foil (d) a dull brick

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