Periscope STEM Project Worksheet

Science experiments lesson 28: Mirror periscope · Set 64 · 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.🔍 Which is the odd one out? (a) black cloth (b) still clear water (c) dark soil (d) a rough wooden board
3. 3.⚖️ Fair test — does the angle of the mirrors change how clearly you see? True or false: the angle of the mirrors is what we measure. (a) True (b) False
4. 4.True or false: an empty juice carton is needed for the periscope. (a) False (b) True
5. 5.🧺 Do we need turmeric powder for the periscope? (a) needed (b) not needed
6. 6.🔭 How many mirrors does a simple periscope use?
7. 7.⚖️ 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
8. 8.🔭 What does a periscope let you do? (a) hear far sounds (b) see in the dark (c) see over a wall (d) see germs
9. 9.True or false: aluminium foil reflects light poorly. (a) True (b) False
10. 10.🔭 Which of these reflects light well? (a) black cloth (b) dark soil (c) a dull brick (d) a shiny steel plate
11. 11.🔍 Which is the odd one out? (a) still clear water (b) black cloth (c) a shiny steel plate (d) a mirror
12. 12.True or false: a ruler is needed for the periscope. (a) False (b) True
13. 13.⚖️ 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
14. 14.🔭 Which of these reflects light well? (a) black cloth (b) a dull brick (c) aluminium foil (d) a rough wooden board
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 carton (b) the angle of the mirrors (c) how clear the view is (d) the same mirrors
16. 16.🔭 Does aluminium foil reflect light well or poorly? (a) reflects light poorly (b) reflects light well
17. 17.🔭 Which of these reflects light poorly? (a) a shiny steel plate (b) a mirror (c) still clear water (d) a rough wooden board
18. 18.🛟 You must never point a periscope or a mirror at ___. (a) a wall (b) the Sun (c) a friend’s toy (d) a tree
19. 19.🧺 Do we need vinegar for the periscope? (a) needed (b) not needed
20. 20.🧺 Do we need sticky tape for the periscope? (a) needed (b) not needed
21. 21.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) a pencil (b) a battery cell (c) an empty juice carton (d) two small mirrors
22. 22.🧺 Do we need a pencil for the periscope? (a) needed (b) not needed
23. 23.True or false: a shiny steel plate reflects light well. (a) False (b) True
24. 24.🔍 Which is the odd one out? (a) a mirror (b) a shiny steel plate (c) aluminium foil (d) dark soil
25. 25.🔭 At what angle are the mirrors set in a simple periscope? (a) 180 degrees (b) 10 degrees (c) 90 degrees (d) 45 degrees
26. 26.True or false: a shiny steel plate reflects light poorly. (a) False (b) True
27. 27.🔭 Which of these reflects light poorly? (a) a mirror (b) still clear water (c) black cloth (d) aluminium foil
28. 28.🔭 Does a rough wooden board reflect light well or poorly? (a) reflects light poorly (b) reflects light well
29. 29.🔮 Predict: you make the periscope tube twice as tall. You can see over ___. (a) only short walls (b) taller walls (c) the ground (d) nothing at all
30. 30.True or false: a pencil is needed for the periscope. (a) True (b) False
31. 31.🛟 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
32. 32.True or false: a pencil is not needed for the periscope. (a) False (b) True
33. 33.🔭 Does dark soil reflect light well or poorly? (a) reflects light poorly (b) reflects light well
34. 34.🧺 Which of these is needed for the periscope? (a) an empty juice carton (b) a balloon (c) a battery cell (d) turmeric powder
35. 35.⚖️ Fair test — does the angle of the mirrors change how clearly you see? What do we do with “the object we look at”? (a) we keep it the same (b) we change it (c) we measure it
36. 36.🔭 Does a mirror reflect light well or poorly? (a) reflects light well (b) reflects light poorly
37. 37.True or false: a magnet is needed for the periscope. (a) False (b) True
38. 38.🔭 How many times does light bounce off a mirror in a simple periscope?
39. 39.⚖️ Fair test — does the angle of the mirrors change how clearly you see? True or false: the same light is what we measure. (a) True (b) False
40. 40.True or false: a dull brick reflects light poorly. (a) True (b) False

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