Periscope STEM Project Worksheet

Science experiments lesson 28: Mirror periscope · Set 360 · 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 an empty juice carton for the periscope? (a) needed (b) not needed
2. 2.True or false: two small mirrors is needed for the periscope. (a) False (b) True
3. 3.🛟 You must never point a periscope or a mirror at ___. (a) a friend’s toy (b) the Sun (c) a wall (d) a tree
4. 4.True or false: a magnet is needed for the periscope. (a) False (b) True
5. 5.🔭 At what angle are the mirrors set in a simple periscope? (a) 180 degrees (b) 10 degrees (c) 45 degrees (d) 90 degrees
6. 6.True or false: yeast is needed for the periscope. (a) False (b) True
7. 7.🔭 How many mirrors does a simple periscope use?
8. 8.🔭 Why must the two mirrors face each other and be parallel? (a) so it looks shiny (b) to make it heavy (c) so light reaches the eye (d) so it can float
9. 9.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) sticky tape (b) an empty juice carton (c) a magnet (d) two small mirrors
10. 10.⚖️ 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
11. 11.🔍 Which is the odd one out? (a) a mirror (b) a shiny steel plate (c) a dull brick (d) aluminium foil
12. 12.🔮 Predict: you hold a written word up to a mirror. The letters look ___. (a) much bigger (b) upside down only (c) flipped left to right (d) in colour
13. 13.True or false: a ruler is not needed for the periscope. (a) True (b) False
14. 14.⚖️ Fair test — does the angle of the mirrors change how clearly you see? What do we do with “the same carton”? (a) we keep it the same (b) we measure it (c) we change it
15. 15.🔭 What does a periscope let you do? (a) see over a wall (b) see in the dark (c) hear far sounds (d) see germs
16. 16.🔭 Which of these reflects light poorly? (a) aluminium foil (b) a mirror (c) black cloth (d) a shiny steel plate
17. 17.⚖️ 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 same mirrors (c) the angle of the mirrors (d) the same light
18. 18.⚖️ 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) True (b) False
19. 19.🧺 Do we need a magnet for the periscope? (a) not needed (b) needed
20. 20.🧺 Which of these is not needed for the periscope? (a) two small mirrors (b) an empty juice carton (c) a pencil (d) a magnet
21. 21.True or false: a mirror reflects light well. (a) False (b) True
22. 22.🧺 Which of these is needed for the periscope? (a) turmeric powder (b) a ruler (c) yeast (d) a magnet
23. 23.⚖️ 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) False (b) True
24. 24.⚖️ 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) the object we look at (c) the same carton (d) how clear the view is
25. 25.🛟 Which mirrors are safest for a children’s periscope? (a) loose glass panes (b) plastic safety mirrors (c) big wall mirrors (d) broken glass bits
26. 26.True or false: yeast is not needed for the periscope. (a) False (b) True
27. 27.🧺 Do we need sticky tape for the periscope? (a) not needed (b) needed
28. 28.⚖️ 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
29. 29.🔭 Which of these reflects light well? (a) black cloth (b) a rough wooden board (c) dark soil (d) a mirror
30. 30.🧺 Which of these is not needed for the periscope? (a) a pencil (b) two small mirrors (c) an empty juice carton (d) a battery cell
31. 31.🧺 Which of these is needed for the periscope? (a) a balloon (b) a magnet (c) an empty juice carton (d) vinegar
32. 32.⚖️ Fair test — does the angle of the mirrors change how clearly you see? True or false: how clear the view is is the one thing we change. (a) False (b) True
33. 33.🔍 Which is the odd one out? (a) a rough wooden board (b) black cloth (c) aluminium foil (d) dark soil
34. 34.⚖️ 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
35. 35.🔮 Predict: you make the periscope tube twice as tall. You can see over ___. (a) taller walls (b) nothing at all (c) only short walls (d) the ground
36. 36.🧺 Do we need a balloon for the periscope? (a) needed (b) not needed
37. 37.🧺 Do we need vinegar for the periscope? (a) needed (b) not needed
38. 38.🔭 Which of these reflects light poorly? (a) a shiny steel plate (b) dark soil (c) a mirror (d) still clear water
39. 39.⚖️ 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
40. 40.🧺 Do we need two small mirrors for the periscope? (a) not needed (b) needed

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