Periscope STEM Project Worksheet

Science experiments lesson 28: Mirror periscope · Set 746 · 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.⚖️ Fair test — does the angle of the mirrors change how clearly you see? True or false: the same carton is kept the same. (a) False (b) True
2. 2.🔭 Which of these reflects light well? (a) a dull brick (b) a shiny steel plate (c) black cloth (d) a rough wooden board
3. 3.🧺 Which of these is not needed for the periscope? (a) sticky tape (b) turmeric powder (c) an empty juice carton (d) a pencil
4. 4.🔭 How many times does light bounce off a mirror in a simple periscope?
5. 5.🔍 Which is the odd one out? (a) aluminium foil (b) dark soil (c) a shiny steel plate (d) a mirror
6. 6.🔭 Which of these reflects light well? (a) a rough wooden board (b) black cloth (c) aluminium foil (d) a dull brick
7. 7.🔭 Why must the two mirrors face each other and be parallel? (a) so it looks shiny (b) so it can float (c) so light reaches the eye (d) to make it heavy
8. 8.🧺 Do we need an empty juice carton for the periscope? (a) not needed (b) needed
9. 9.🔮 Predict: you hold a written word up to a mirror. The letters look ___. (a) in colour (b) upside down only (c) flipped left to right (d) much bigger
10. 10.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) an empty juice carton (b) a balloon (c) a ruler (d) two small mirrors
11. 11.🔭 Does black cloth reflect light well or poorly? (a) reflects light poorly (b) reflects light well
12. 12.🔮 Predict: you cover the top mirror with paper. What do you see? (a) a brighter view (b) only darkness (c) two pictures (d) a rainbow
13. 13.⚖️ 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 measure it (b) we keep it the same (c) we change it
14. 14.⚖️ 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
15. 15.⚖️ 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
16. 16.🔮 Predict: you make the periscope tube twice as tall. You can see over ___. (a) the ground (b) taller walls (c) only short walls (d) nothing at all
17. 17.🔭 Does a mirror reflect light well or poorly? (a) reflects light poorly (b) reflects light well
18. 18.True or false: a magnet is not needed for the periscope. (a) False (b) True
19. 19.⚖️ 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
20. 20.⚖️ Fair test — does the angle of the mirrors change how clearly you see? Which of these is the one thing we change? (a) the same carton (b) the object we look at (c) the angle of the mirrors (d) the same mirrors
21. 21.🧺 Do we need a battery cell for the periscope? (a) not needed (b) needed
22. 22.🔭 Which of these reflects light well? (a) black cloth (b) a dull brick (c) a mirror (d) dark soil
23. 23.🔍 Which is the odd one out? (a) a dull brick (b) a shiny steel plate (c) dark soil (d) black cloth
24. 24.⚖️ Fair test — does the angle of the mirrors change how clearly you see? Which of these is kept the same? (a) the angle of the mirrors (b) how clear the view is (c) the object we look at
25. 25.⚖️ Fair test — does the angle of the mirrors change how clearly you see? True or false: the same light is what we measure. (a) True (b) False
26. 26.⚖️ Fair test — does the angle of the mirrors change how clearly you see? What do we do with “the same mirrors”? (a) we keep it the same (b) we measure it (c) we change it
27. 27.🔭 At what angle are the mirrors set in a simple periscope? (a) 45 degrees (b) 10 degrees (c) 180 degrees (d) 90 degrees
28. 28.⚖️ Fair test — does the angle of the mirrors change how clearly you see? True or false: the object we look at is what we measure. (a) False (b) True
29. 29.🔭 Does aluminium foil reflect light well or poorly? (a) reflects light poorly (b) reflects light well
30. 30.🧺 Do we need vinegar for the periscope? (a) needed (b) not needed
31. 31.True or false: a magnet is needed for the periscope. (a) True (b) False
32. 32.⚖️ Fair test — does the angle of the mirrors change how clearly you see? True or false: the same light is kept the same. (a) False (b) True
33. 33.⚖️ Fair test — does the angle of the mirrors change how clearly you see? True or false: the same carton is what we measure. (a) True (b) False
34. 34.⚖️ 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
35. 35.🔍 Which is the odd one out? (a) a shiny steel plate (b) a mirror (c) black cloth (d) still clear water
36. 36.🔭 How many mirrors does a simple periscope use?
37. 37.🧺 Which of these is needed for the periscope? (a) vinegar (b) turmeric powder (c) a balloon (d) a pencil
38. 38.🔍 Which is the odd one out? (a) still clear water (b) a mirror (c) a dull brick (d) a shiny steel plate
39. 39.🛟 Which mirrors are safest for a children’s periscope? (a) broken glass bits (b) plastic safety mirrors (c) big wall mirrors (d) loose glass panes
40. 40.🛟 You must never point a periscope or a mirror at ___. (a) a friend’s toy (b) the Sun (c) a tree (d) a wall

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