Periscope STEM Project Worksheet

Science experiments lesson 28: Mirror periscope · Set 620 · 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.🔭 Does aluminium foil reflect light well or poorly? (a) reflects light well (b) reflects light poorly
2. 2.🧺 Do we need sticky tape for the periscope? (a) not needed (b) needed
3. 3.🛟 You must never point a periscope or a mirror at ___. (a) a tree (b) a wall (c) the Sun (d) a friend’s toy
4. 4.🔍 Which is the odd one out? (a) still clear water (b) a dull brick (c) a mirror (d) aluminium foil
5. 5.True or false: yeast is not needed for the periscope. (a) True (b) False
6. 6.🔭 How many times does light bounce off a mirror in a simple periscope?
7. 7.🔭 Does black cloth reflect light well or poorly? (a) reflects light poorly (b) reflects light well
8. 8.🧺 Which of these is not needed for the periscope? (a) a ruler (b) yeast (c) a pencil (d) an empty juice carton
9. 9.🛟 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
10. 10.🔭 How many mirrors does a simple periscope use?
11. 11.🔭 Who uses a periscope to look above the water? (a) a baker (b) a pilot in a plane (c) a farmer (d) a submarine crew
12. 12.🧺 Which of these is not needed for the periscope? (a) a pencil (b) sticky tape (c) a balloon (d) an empty juice carton
13. 13.🧺 Which of these is needed for the periscope? (a) an empty juice carton (b) a balloon (c) yeast (d) vinegar
14. 14.🔭 Which of these reflects light well? (a) aluminium foil (b) dark soil (c) a dull brick (d) black cloth
15. 15.🔭 Which of these reflects light poorly? (a) still clear water (b) a mirror (c) a shiny steel plate (d) a rough wooden board
16. 16.⚖️ 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) True (b) False
17. 17.🔭 What does a periscope let you do? (a) see germs (b) see in the dark (c) see over a wall (d) hear far sounds
18. 18.🔭 Does dark soil reflect light well or poorly? (a) reflects light well (b) reflects light poorly
19. 19.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) sticky tape (b) a ruler (c) a pencil (d) a balloon
20. 20.🔍 Which is the odd one out? (a) a dull brick (b) a shiny steel plate (c) a rough wooden board (d) black cloth
21. 21.📘 Light bouncing off a mirror is called ___. (a) magnetism (b) evaporation (c) reflection (d) refraction
22. 22.🧺 Which of these is not needed for the periscope? (a) a ruler (b) a magnet (c) two small mirrors (d) sticky tape
23. 23.⚖️ Fair test — does the angle of the mirrors change how clearly you see? What do we do with “the same carton”? (a) we change it (b) we keep it the same (c) we measure it
24. 24.🧺 Do we need yeast for the periscope? (a) not needed (b) needed
25. 25.⚖️ 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
26. 26.True or false: a dull brick reflects light well. (a) False (b) True
27. 27.🧺 Do we need a magnet for the periscope? (a) needed (b) not needed
28. 28.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) a ruler (b) an empty juice carton (c) a magnet (d) sticky tape
29. 29.🧺 Which of these is not needed for the periscope? (a) a pencil (b) an empty juice carton (c) two small mirrors (d) vinegar
30. 30.🧺 Do we need a balloon for the periscope? (a) needed (b) not needed
31. 31.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) two small mirrors (b) a battery cell (c) a pencil (d) an empty juice carton
32. 32.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) an empty juice carton (b) a ruler (c) two small mirrors (d) yeast
33. 33.🔭 Which of these reflects light well? (a) a mirror (b) dark soil (c) black cloth (d) a rough wooden board
34. 34.🔮 Predict: you make the periscope tube twice as tall. You can see over ___. (a) nothing at all (b) taller walls (c) only short walls (d) the ground
35. 35.🧺 Do we need turmeric powder for the periscope? (a) not needed (b) needed
36. 36.⚖️ 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 carton (c) the angle of the mirrors (d) the same mirrors
37. 37.🔭 At what angle are the mirrors set in a simple periscope? (a) 180 degrees (b) 45 degrees (c) 10 degrees (d) 90 degrees
38. 38.True or false: dark soil reflects light well. (a) True (b) False
39. 39.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) a pencil (b) two small mirrors (c) an empty juice carton (d) turmeric powder
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 keep it the same (b) we change it (c) we measure it

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