Periscope STEM Project Worksheet

Science experiments lesson 28: Mirror periscope · Set 88 · 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.🔮 Predict: you cover the top mirror with paper. What do you see? (a) two pictures (b) a rainbow (c) a brighter view (d) only darkness
2. 2.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) sticky tape (b) a pencil (c) yeast (d) a ruler
3. 3.🔍 Which is the odd one out? (a) a dull brick (b) black cloth (c) still clear water (d) a rough wooden board
4. 4.🧺 Which of these is needed for the periscope? (a) an empty juice carton (b) a magnet (c) vinegar (d) a battery cell
5. 5.🔭 Who uses a periscope to look above the water? (a) a submarine crew (b) a pilot in a plane (c) a farmer (d) a baker
6. 6.True or false: yeast is needed for the periscope. (a) False (b) True
7. 7.🧺 Do we need turmeric powder for the periscope? (a) not needed (b) needed
8. 8.🔭 Which of these reflects light poorly? (a) a rough wooden board (b) a shiny steel plate (c) still clear water (d) a mirror
9. 9.🔭 How many mirrors does a simple periscope use?
10. 10.⚖️ 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
11. 11.🔍 Which is the odd one out? (a) still clear water (b) a mirror (c) aluminium foil (d) a rough wooden board
12. 12.🧺 Which of these is not needed for the periscope? (a) two small mirrors (b) an empty juice carton (c) a magnet (d) a ruler
13. 13.🧺 Do we need an empty juice carton for the periscope? (a) not needed (b) needed
14. 14.🛟 Which mirrors are safest for a children’s periscope? (a) plastic safety mirrors (b) broken glass bits (c) loose glass panes (d) big wall mirrors
15. 15.🔭 Does a dull brick reflect light well or poorly? (a) reflects light poorly (b) reflects light well
16. 16.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) a battery cell (b) an empty juice carton (c) a pencil (d) sticky tape
17. 17.⚖️ 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
18. 18.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) two small mirrors (b) sticky tape (c) an empty juice carton (d) turmeric powder
19. 19.🔮 Predict: you make the periscope tube twice as tall. You can see over ___. (a) taller walls (b) nothing at all (c) only short walls (d) the ground
20. 20.🔭 Does a shiny steel plate reflect light well or poorly? (a) reflects light well (b) reflects light poorly
21. 21.🔍 Which is the odd one out? (a) a dull brick (b) a mirror (c) black cloth (d) dark soil
22. 22.🔭 What does a periscope let you do? (a) see in the dark (b) hear far sounds (c) see over a wall (d) see germs
23. 23.⚖️ Fair test — does the angle of the mirrors change how clearly you see? True or false: the same mirrors is kept the same. (a) True (b) False
24. 24.⚖️ 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
25. 25.🔭 How many times does light bounce off a mirror in a simple periscope?
26. 26.True or false: yeast is not needed for the periscope. (a) True (b) False
27. 27.🔭 Which of these reflects light poorly? (a) aluminium foil (b) still clear water (c) black cloth (d) a shiny steel plate
28. 28.⚖️ 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
29. 29.⚖️ Fair test — does the angle of the mirrors change how clearly you see? Which of these is what we measure? (a) the angle of the mirrors (b) the same light (c) how clear the view is (d) the same carton
30. 30.🔭 Which of these reflects light well? (a) still clear water (b) a rough wooden board (c) dark soil (d) black cloth
31. 31.True or false: two small mirrors is needed for the periscope. (a) False (b) True
32. 32.🧺 Which of these is needed for the periscope? (a) vinegar (b) a balloon (c) a battery cell (d) sticky tape
33. 33.True or false: a balloon is not needed for the periscope. (a) True (b) False
34. 34.🧺 Which of these is not needed for the periscope? (a) an empty juice carton (b) two small mirrors (c) a balloon (d) a ruler
35. 35.⚖️ 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
36. 36.True or false: an empty juice carton is not needed for the periscope. (a) True (b) False
37. 37.⚖️ Fair test — does the angle of the mirrors change how clearly you see? What do we do with “the same light”? (a) we keep it the same (b) we measure it (c) we change it
38. 38.📘 Light bouncing off a mirror is called ___. (a) evaporation (b) magnetism (c) refraction (d) reflection
39. 39.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) two small mirrors (b) a ruler (c) a pencil (d) vinegar
40. 40.True or false: vinegar is not needed for the periscope. (a) False (b) True

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