Periscope STEM Project Worksheet

Science experiments lesson 28: Mirror periscope · Set 126 · 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) black cloth (b) a shiny steel plate (c) a mirror (d) aluminium foil
2. 2.🧺 Do we need sticky tape for the periscope? (a) needed (b) not needed
3. 3.🛟 Which mirrors are safest for a children’s periscope? (a) broken glass bits (b) big wall mirrors (c) loose glass panes (d) plastic safety mirrors
4. 4.🔭 How many times does light bounce off a mirror in a simple periscope?
5. 5.🛟 Who should cut the holes in the juice carton? (a) nobody needs to (b) a friend who is running (c) the youngest child (d) a grown-up
6. 6.🔍 Which is the odd one out? (a) a dull brick (b) a rough wooden board (c) a shiny steel plate (d) black cloth
7. 7.True or false: a balloon is needed for the periscope. (a) True (b) False
8. 8.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) a ruler (b) a balloon (c) a pencil (d) sticky tape
9. 9.🔮 Predict: you hold a written word up to a mirror. The letters look ___. (a) in colour (b) flipped left to right (c) upside down only (d) much bigger
10. 10.True or false: a shiny steel plate reflects light poorly. (a) True (b) False
11. 11.⚖️ Fair test — does the angle of the mirrors change how clearly you see? Which of these is what we measure? (a) the object we look at (b) the same mirrors (c) the same light (d) how clear the view is
12. 12.🔭 Does a dull brick reflect light well or poorly? (a) reflects light well (b) reflects light poorly
13. 13.🔍 Which is the odd one out? (a) a mirror (b) a rough wooden board (c) aluminium foil (d) a shiny steel plate
14. 14.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) turmeric powder (b) sticky tape (c) a pencil (d) two small mirrors
15. 15.True or false: a ruler is needed for the periscope. (a) True (b) False
16. 16.🔭 Does a rough wooden board reflect light well or poorly? (a) reflects light poorly (b) reflects light well
17. 17.True or false: aluminium foil reflects light well. (a) False (b) True
18. 18.🔭 How many mirrors does a simple periscope use?
19. 19.🔭 Which of these reflects light well? (a) a rough wooden board (b) black cloth (c) a mirror (d) dark soil
20. 20.🧺 Do we need two small mirrors for the periscope? (a) needed (b) not needed
21. 21.🧺 Do we need an empty juice carton for the periscope? (a) needed (b) not needed
22. 22.True or false: a mirror reflects light poorly. (a) False (b) True
23. 23.🔭 Does still clear water reflect light well or poorly? (a) reflects light well (b) reflects light poorly
24. 24.⚖️ 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 angle of the mirrors (c) the same mirrors
25. 25.🔭 Does a shiny steel plate reflect light well or poorly? (a) reflects light well (b) reflects light poorly
26. 26.🧺 Do we need turmeric powder for the periscope? (a) needed (b) not needed
27. 27.🔭 Does black cloth reflect light well or poorly? (a) reflects light well (b) reflects light poorly
28. 28.🔭 Which of these reflects light well? (a) dark soil (b) black cloth (c) a rough wooden board (d) still clear water
29. 29.⚖️ Fair test — does the angle of the mirrors change how clearly you see? Which of these is the one thing we change? (a) the angle of the mirrors (b) how clear the view is (c) the same light (d) the same carton
30. 30.🔍 Which is the odd one out? (a) dark soil (b) still clear water (c) a dull brick (d) black cloth
31. 31.⚖️ 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) True (b) False
32. 32.🔭 At what angle are the mirrors set in a simple periscope? (a) 180 degrees (b) 10 degrees (c) 45 degrees (d) 90 degrees
33. 33.🔍 Which is the odd one out? (a) a mirror (b) a shiny steel plate (c) aluminium foil (d) a dull brick
34. 34.⚖️ 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
35. 35.🛟 You must never point a periscope or a mirror at ___. (a) a tree (b) a friend’s toy (c) a wall (d) the Sun
36. 36.True or false: turmeric powder is not needed for the periscope. (a) False (b) True
37. 37.🔮 Predict: you cover the top mirror with paper. What do you see? (a) a rainbow (b) two pictures (c) only darkness (d) a brighter view
38. 38.⚖️ 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 angle of the mirrors (c) the same light
39. 39.True or false: a ruler is not needed for the periscope. (a) True (b) False
40. 40.⚖️ Fair test — does the angle of the mirrors change how clearly you see? What do we do with “the angle of the mirrors”? (a) we change it (b) we keep it the same (c) we measure it

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