Periscope STEM Project Worksheet

Science experiments lesson 28: Mirror periscope · Set 704 · 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 light is kept the same. (a) True (b) False
2. 2.🧺 Which of these is needed for the periscope? (a) a pencil (b) a balloon (c) vinegar (d) a magnet
3. 3.🔭 Which of these reflects light well? (a) dark soil (b) a rough wooden board (c) a dull brick (d) a mirror
4. 4.⚖️ 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 keep it the same (c) we change it
5. 5.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) a battery cell (b) a ruler (c) a pencil (d) two small mirrors
6. 6.🛟 You must never point a periscope or a mirror at ___. (a) a wall (b) a friend’s toy (c) a tree (d) the Sun
7. 7.🔭 Does a shiny steel plate reflect light well or poorly? (a) reflects light poorly (b) reflects light well
8. 8.⚖️ 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) the same carton (c) the angle of the mirrors (d) how clear the view is
9. 9.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) sticky tape (b) turmeric powder (c) two small mirrors (d) a pencil
10. 10.True or false: yeast is needed for the periscope. (a) False (b) True
11. 11.🔮 Predict: you hold a written word up to a mirror. The letters look ___. (a) in colour (b) flipped left to right (c) much bigger (d) upside down only
12. 12.🔭 How many mirrors does a simple periscope use?
13. 13.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) an empty juice carton (b) two small mirrors (c) a magnet (d) a ruler
14. 14.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) vinegar (b) two small mirrors (c) a ruler (d) sticky tape
15. 15.🧺 Which of these is not needed for the periscope? (a) an empty juice carton (b) a ruler (c) two small mirrors (d) a battery cell
16. 16.⚖️ Fair test — does the angle of the mirrors change how clearly you see? Which of these is what we measure? (a) the same light (b) how clear the view is (c) the same carton (d) the angle of the mirrors
17. 17.⚖️ Fair test — does the angle of the mirrors change how clearly you see? Which of these is kept the same? (a) the same mirrors (b) how clear the view is (c) the angle of the mirrors
18. 18.🔭 Why must the two mirrors face each other and be parallel? (a) so it can float (b) so it looks shiny (c) to make it heavy (d) so light reaches the eye
19. 19.True or false: a pencil is needed for the periscope. (a) True (b) False
20. 20.🔍 Which is the odd one out? (a) black cloth (b) still clear water (c) aluminium foil (d) a mirror
21. 21.⚖️ Fair test — does the angle of the mirrors change how clearly you see? True or false: the same mirrors is the one thing we change. (a) True (b) False
22. 22.🧺 Do we need yeast for the periscope? (a) needed (b) not needed
23. 23.🔍 Which is the odd one out? (a) dark soil (b) a shiny steel plate (c) a dull brick (d) black cloth
24. 24.🔍 Which is the odd one out? (a) a mirror (b) still clear water (c) dark soil (d) aluminium foil
25. 25.🔭 Does a rough wooden board reflect light well or poorly? (a) reflects light well (b) reflects light poorly
26. 26.True or false: a mirror reflects light well. (a) False (b) True
27. 27.⚖️ 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 measure it (c) we keep it the same
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: the same carton is what we measure. (a) True (b) False
30. 30.🔍 Which is the odd one out? (a) a dull brick (b) a rough wooden board (c) a mirror (d) dark soil
31. 31.True or false: sticky tape is not needed for the periscope. (a) True (b) False
32. 32.🧺 Do we need sticky tape for the periscope? (a) needed (b) not needed
33. 33.🔍 Which is the odd one out? (a) dark soil (b) still clear water (c) a dull brick (d) a rough wooden board
34. 34.🧺 Do we need vinegar for the periscope? (a) not needed (b) needed
35. 35.True or false: an empty juice carton is needed for the periscope. (a) False (b) True
36. 36.🛟 Which mirrors are safest for a children’s periscope? (a) loose glass panes (b) plastic safety mirrors (c) broken glass bits (d) big wall mirrors
37. 37.⚖️ 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
38. 38.🧺 Which of these is needed for the periscope? (a) two small mirrors (b) vinegar (c) yeast (d) a battery cell
39. 39.🔭 Does aluminium foil reflect light well or poorly? (a) reflects light poorly (b) reflects light well
40. 40.🔭 Does dark soil reflect light well or poorly? (a) reflects light poorly (b) reflects light well

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