Periscope STEM Project Worksheet

Science experiments lesson 28: Mirror periscope · Set 15 · 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.🔍 Which is the odd one out? (a) a shiny steel plate (b) dark soil (c) still clear water (d) aluminium foil
2. 2.🔭 At what angle are the mirrors set in a simple periscope? (a) 180 degrees (b) 10 degrees (c) 90 degrees (d) 45 degrees
3. 3.🧺 Which of these is not needed for the periscope? (a) sticky tape (b) a balloon (c) two small mirrors (d) a ruler
4. 4.🔭 Which of these reflects light well? (a) a dull brick (b) dark soil (c) a shiny steel plate (d) a rough wooden board
5. 5.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) a balloon (b) two small mirrors (c) sticky tape (d) a pencil
6. 6.⚖️ Fair test — does the angle of the mirrors change how clearly you see? Which of these is the one thing we change? (a) how clear the view is (b) the same light (c) the object we look at (d) the angle of the mirrors
7. 7.🔮 Predict: you hold a written word up to a mirror. The letters look ___. (a) flipped left to right (b) upside down only (c) much bigger (d) in colour
8. 8.⚖️ Fair test — does the angle of the mirrors change how clearly you see? True or false: how clear the view is is the one thing we change. (a) False (b) True
9. 9.🧺 Which of these is needed for the periscope? (a) turmeric powder (b) two small mirrors (c) yeast (d) a balloon
10. 10.🔮 Predict: you cover the top mirror with paper. What do you see? (a) a brighter view (b) two pictures (c) a rainbow (d) only darkness
11. 11.🔭 Which of these reflects light poorly? (a) a shiny steel plate (b) aluminium foil (c) a rough wooden board (d) still clear water
12. 12.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) sticky tape (b) two small mirrors (c) a pencil (d) yeast
13. 13.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) an empty juice carton (b) a ruler (c) a magnet (d) sticky tape
14. 14.True or false: still clear water reflects light well. (a) True (b) False
15. 15.🔭 What does a periscope let you do? (a) see over a wall (b) hear far sounds (c) see germs (d) see in the dark
16. 16.⚖️ Fair test — does the angle of the mirrors change how clearly you see? True or false: how clear the view is is what we measure. (a) False (b) True
17. 17.🛟 Who should cut the holes in the juice carton? (a) nobody needs to (b) the youngest child (c) a grown-up (d) a friend who is running
18. 18.🔭 Does a rough wooden board reflect light well or poorly? (a) reflects light poorly (b) reflects light well
19. 19.🧺 Do we need a magnet for the periscope? (a) needed (b) not needed
20. 20.🔮 Predict: you make the periscope tube twice as tall. You can see over ___. (a) only short walls (b) the ground (c) taller walls (d) nothing at all
21. 21.🔍 Which is the odd one out? (a) dark soil (b) black cloth (c) a dull brick (d) a mirror
22. 22.⚖️ Fair test — does the angle of the mirrors change how clearly you see? What do we do with “the same carton”? (a) we measure it (b) we change it (c) we keep it the same
23. 23.True or false: two small mirrors is needed for the periscope. (a) True (b) False
24. 24.🔍 Which is the odd one out? (a) still clear water (b) a mirror (c) aluminium foil (d) black cloth
25. 25.🔭 Does a shiny steel plate reflect light well or poorly? (a) reflects light poorly (b) reflects light well
26. 26.True or false: a ruler is needed for the periscope. (a) True (b) False
27. 27.True or false: yeast is needed for the periscope. (a) False (b) True
28. 28.🧺 Which of these is not needed for the periscope? (a) an empty juice carton (b) two small mirrors (c) vinegar (d) sticky tape
29. 29.🧺 Do we need yeast for the periscope? (a) not needed (b) needed
30. 30.⚖️ Fair test — does the angle of the mirrors change how clearly you see? True or false: the angle of the mirrors is the one thing we change. (a) True (b) False
31. 31.🔭 Which of these reflects light poorly? (a) a mirror (b) still clear water (c) aluminium foil (d) dark soil
32. 32.⚖️ Fair test — does the angle of the mirrors change how clearly you see? True or false: the object we look at is the one thing we change. (a) False (b) True
33. 33.🔭 Which of these reflects light poorly? (a) a mirror (b) black cloth (c) a shiny steel plate (d) still clear water
34. 34.🧺 Which of these is needed for the periscope? (a) a battery cell (b) sticky tape (c) a balloon (d) a magnet
35. 35.⚖️ Fair test — does the angle of the mirrors change how clearly you see? Which of these is what we measure? (a) the same mirrors (b) the angle of the mirrors (c) the same carton (d) how clear the view is
36. 36.⚖️ Fair test — does the angle of the mirrors change how clearly you see? True or false: the same light is the one thing we change. (a) True (b) False
37. 37.🔭 How many times does light bounce off a mirror in a simple periscope?
38. 38.⚖️ Fair test — does the angle of the mirrors change how clearly you see? True or false: the same mirrors is what we measure. (a) False (b) True
39. 39.🧺 Do we need two small mirrors for the periscope? (a) needed (b) not needed
40. 40.🔭 How many mirrors does a simple periscope use?

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