Periscope STEM Project Worksheet

Science experiments lesson 28: Mirror periscope · Set 112 · 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 poorly (b) reflects light well
2. 2.🛟 Who should cut the holes in the juice carton? (a) a grown-up (b) a friend who is running (c) nobody needs to (d) the youngest child
3. 3.True or false: a magnet is not needed for the periscope. (a) False (b) True
4. 4.🧺 Which of these is needed for the periscope? (a) vinegar (b) a battery cell (c) two small mirrors (d) turmeric powder
5. 5.🔭 How many mirrors does a simple periscope use?
6. 6.True or false: two small mirrors is not needed for the periscope. (a) False (b) True
7. 7.🔭 Which of these reflects light well? (a) a rough wooden board (b) black cloth (c) a mirror (d) a dull brick
8. 8.🧺 Do we need a pencil for the periscope? (a) not needed (b) needed
9. 9.🔍 Which is the odd one out? (a) a mirror (b) still clear water (c) a dull brick (d) a shiny steel plate
10. 10.🧺 Which of these is not needed for the periscope? (a) a pencil (b) a magnet (c) an empty juice carton (d) sticky tape
11. 11.🛟 Which mirrors are safest for a children’s periscope? (a) plastic safety mirrors (b) big wall mirrors (c) broken glass bits (d) loose glass panes
12. 12.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) a magnet (b) two small mirrors (c) a ruler (d) an empty juice carton
13. 13.🔭 Which of these reflects light poorly? (a) still clear water (b) black cloth (c) a shiny steel plate (d) a mirror
14. 14.🧺 Which of these is not needed for the periscope? (a) a ruler (b) a pencil (c) yeast (d) an empty juice carton
15. 15.🔭 Does black cloth reflect light well or poorly? (a) reflects light well (b) reflects light poorly
16. 16.True or false: black cloth reflects light well. (a) False (b) True
17. 17.🧺 Do we need sticky tape for the periscope? (a) not needed (b) needed
18. 18.⚖️ Fair test — does the angle of the mirrors change how clearly you see? Which of these is what we measure? (a) the object we look at (b) the same light (c) the same mirrors (d) how clear the view is
19. 19.True or false: aluminium foil reflects light poorly. (a) True (b) False
20. 20.🧺 Do we need vinegar for the periscope? (a) needed (b) not needed
21. 21.⚖️ Fair test — does the angle of the mirrors change how clearly you see? Which of these is the one thing we change? (a) how clear the view is (b) the angle of the mirrors (c) the same light (d) the same mirrors
22. 22.🔭 Does dark soil reflect light well or poorly? (a) reflects light well (b) reflects light poorly
23. 23.🔮 Predict: you hold a written word up to a mirror. The letters look ___. (a) upside down only (b) much bigger (c) flipped left to right (d) in colour
24. 24.⚖️ Fair test — does the angle of the mirrors change how clearly you see? True or false: the angle of the mirrors is kept the same. (a) False (b) True
25. 25.🧺 Which of these is needed for the periscope? (a) an empty juice carton (b) vinegar (c) a magnet (d) a battery cell
26. 26.⚖️ Fair test — does the angle of the mirrors change how clearly you see? Which of these is kept the same? (a) how clear the view is (b) the same mirrors (c) the angle of the mirrors
27. 27.🧺 Which of these is not needed for the periscope? (a) a ruler (b) a pencil (c) turmeric powder (d) sticky tape
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) True (b) False
29. 29.🔭 What does a periscope let you do? (a) see over a wall (b) see germs (c) hear far sounds (d) see in the dark
30. 30.🔭 How many times does light bounce off a mirror in a simple periscope?
31. 31.True or false: a balloon is needed for the periscope. (a) False (b) True
32. 32.🔭 Does a dull brick reflect light well or poorly? (a) reflects light poorly (b) reflects light well
33. 33.⚖️ 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 measure it (c) we change it
34. 34.True or false: still clear water reflects light poorly. (a) True (b) False
35. 35.True or false: dark soil reflects light well. (a) True (b) False
36. 36.🔭 Which of these reflects light poorly? (a) aluminium foil (b) a mirror (c) dark soil (d) still clear water
37. 37.True or false: black cloth reflects light poorly. (a) False (b) True
38. 38.🔍 Which is the odd one out? (a) a mirror (b) aluminium foil (c) still clear water (d) a rough wooden board
39. 39.🔍 Which is the odd one out? (a) a shiny steel plate (b) still clear water (c) aluminium foil (d) dark soil
40. 40.⚖️ Fair test — does the angle of the mirrors change how clearly you see? What do we do with “the same mirrors”? (a) we change it (b) we measure it (c) we keep it the same

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