Periscope STEM Project Worksheet

Science experiments lesson 28: Mirror periscope · Set 760 · 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 a rough wooden board reflect light well or poorly? (a) reflects light well (b) reflects light poorly
2. 2.🔭 Does dark soil reflect light well or poorly? (a) reflects light well (b) reflects light poorly
3. 3.⚖️ 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 measure it (c) we keep it the same
4. 4.⚖️ Fair test — does the angle of the mirrors change how clearly you see? Which of these is kept the same? (a) the same carton (b) how clear the view is (c) the angle of the mirrors
5. 5.🧺 Which of these is not needed for the periscope? (a) an empty juice carton (b) two small mirrors (c) a balloon (d) a pencil
6. 6.⚖️ 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
7. 7.True or false: a balloon is needed for the periscope. (a) False (b) True
8. 8.True or false: a rough wooden board reflects light well. (a) True (b) False
9. 9.True or false: a magnet is needed for the periscope. (a) True (b) False
10. 10.⚖️ Fair test — does the angle of the mirrors change how clearly you see? True or false: the same mirrors is kept the same. (a) False (b) True
11. 11.🧺 Do we need a ruler for the periscope? (a) needed (b) not needed
12. 12.🧺 Do we need vinegar for the periscope? (a) needed (b) not needed
13. 13.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) a pencil (b) two small mirrors (c) a battery cell (d) sticky tape
14. 14.⚖️ Fair test — does the angle of the mirrors change how clearly you see? What do we do with “the same light”? (a) we measure it (b) we keep it the same (c) we change it
15. 15.⚖️ 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 same light (c) how clear the view is (d) the object we look at
16. 16.⚖️ 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 light (b) how clear the view is (c) the same carton (d) the angle of the mirrors
17. 17.🔭 How many mirrors does a simple periscope use?
18. 18.🔍 Which is the odd one out? (a) dark soil (b) black cloth (c) a dull brick (d) aluminium foil
19. 19.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) sticky tape (b) a balloon (c) a pencil (d) a ruler
20. 20.🔮 Predict: you hold a written word up to a mirror. The letters look ___. (a) much bigger (b) flipped left to right (c) upside down only (d) in colour
21. 21.🔭 Does a shiny steel plate reflect light well or poorly? (a) reflects light poorly (b) reflects light well
22. 22.🛟 You must never point a periscope or a mirror at ___. (a) a tree (b) a wall (c) a friend’s toy (d) the Sun
23. 23.True or false: a shiny steel plate reflects light poorly. (a) True (b) False
24. 24.🔭 Does still clear water reflect light well or poorly? (a) reflects light poorly (b) reflects light well
25. 25.⚖️ 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
26. 26.🧺 Which of these is needed for the periscope? (a) a magnet (b) a battery cell (c) vinegar (d) an empty juice carton
27. 27.🔍 Which is the odd one out? (a) a mirror (b) a dull brick (c) still clear water (d) aluminium foil
28. 28.🔭 How many times does light bounce off a mirror in a simple periscope?
29. 29.⚖️ 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
30. 30.🔭 Which of these reflects light well? (a) a rough wooden board (b) a mirror (c) a dull brick (d) black cloth
31. 31.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) a ruler (b) a magnet (c) two small mirrors (d) sticky tape
32. 32.🧺 Which of these is not needed for the periscope? (a) vinegar (b) two small mirrors (c) a pencil (d) sticky tape
33. 33.True or false: a rough wooden board reflects light poorly. (a) True (b) False
34. 34.⚖️ 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
35. 35.🛟 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
36. 36.⚖️ 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) True (b) False
37. 37.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) two small mirrors (b) turmeric powder (c) an empty juice carton (d) a ruler
38. 38.🔭 Which of these reflects light well? (a) a rough wooden board (b) dark soil (c) a dull brick (d) aluminium foil
39. 39.🧺 Do we need a magnet for the periscope? (a) not needed (b) needed
40. 40.🧺 Which of these is not needed for the periscope? (a) a ruler (b) turmeric powder (c) an empty juice carton (d) sticky tape

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