Periscope STEM Project Worksheet

Science experiments lesson 28: Mirror periscope · Set 523 · 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.🧺 Do we need a battery cell for the periscope? (a) needed (b) not needed
2. 2.🔭 How many times does light bounce off a mirror in a simple periscope?
3. 3.🛟 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
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.⚖️ 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 measure it (b) we keep it the same (c) we change it
6. 6.⚖️ 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
7. 7.🔮 Predict: you cover the top mirror with paper. What do you see? (a) a rainbow (b) two pictures (c) only darkness (d) a brighter view
8. 8.⚖️ 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) False (b) True
9. 9.⚖️ Fair test — does the angle of the mirrors change how clearly you see? True or false: the angle of the mirrors is the one thing we change. (a) False (b) True
10. 10.True or false: still clear water reflects light well. (a) False (b) True
11. 11.🔭 Does dark soil reflect light well or poorly? (a) reflects light well (b) reflects light poorly
12. 12.🔭 Does a mirror reflect light well or poorly? (a) reflects light poorly (b) reflects light well
13. 13.🔍 Which is the odd one out? (a) black cloth (b) aluminium foil (c) dark soil (d) a rough wooden board
14. 14.🔭 Does a shiny steel plate reflect light well or poorly? (a) reflects light poorly (b) reflects light well
15. 15.🔭 Why must the two mirrors face each other and be parallel? (a) to make it heavy (b) so it looks shiny (c) so it can float (d) so light reaches the eye
16. 16.⚖️ 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
17. 17.🧺 Do we need vinegar for the periscope? (a) needed (b) not needed
18. 18.⚖️ Fair test — does the angle of the mirrors change how clearly you see? Which of these is kept the same? (a) the angle of the mirrors (b) how clear the view is (c) the same mirrors
19. 19.🧺 Which of these is not needed for the periscope? (a) sticky tape (b) a ruler (c) a battery cell (d) an empty juice carton
20. 20.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) a ruler (b) sticky tape (c) an empty juice carton (d) vinegar
21. 21.True or false: turmeric powder is needed for the periscope. (a) True (b) False
22. 22.True or false: dark soil reflects light poorly. (a) False (b) True
23. 23.⚖️ 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
24. 24.True or false: an empty juice carton is needed for the periscope. (a) False (b) True
25. 25.🔭 What does a periscope let you do? (a) see over a wall (b) see germs (c) see in the dark (d) hear far sounds
26. 26.🔭 Does a dull brick reflect light well or poorly? (a) reflects light poorly (b) reflects light well
27. 27.🧺 Do we need a magnet for the periscope? (a) not needed (b) needed
28. 28.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) a magnet (b) a pencil (c) an empty juice carton (d) a ruler
29. 29.🧺 Do we need an empty juice carton for the periscope? (a) not needed (b) needed
30. 30.🛟 You must never point a periscope or a mirror at ___. (a) a friend’s toy (b) a wall (c) the Sun (d) a tree
31. 31.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) a balloon (b) an empty juice carton (c) a ruler (d) a pencil
32. 32.🔭 How many mirrors does a simple periscope use?
33. 33.🔭 Which of these reflects light poorly? (a) still clear water (b) a mirror (c) a shiny steel plate (d) a dull brick
34. 34.True or false: a magnet is needed for the periscope. (a) False (b) True
35. 35.🔭 Which of these reflects light poorly? (a) a rough wooden board (b) a mirror (c) a shiny steel plate (d) aluminium foil
36. 36.True or false: a rough wooden board reflects light poorly. (a) False (b) True
37. 37.🔭 At what angle are the mirrors set in a simple periscope? (a) 90 degrees (b) 180 degrees (c) 45 degrees (d) 10 degrees
38. 38.🧺 Which of these is not needed for the periscope? (a) a balloon (b) two small mirrors (c) a pencil (d) a ruler
39. 39.True or false: a battery cell is needed for the periscope. (a) True (b) False
40. 40.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) an empty juice carton (b) sticky tape (c) turmeric powder (d) two small mirrors

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