Periscope STEM Project Worksheet

Science experiments lesson 28: Mirror periscope · Set 646 · 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.🔭 At what angle are the mirrors set in a simple periscope? (a) 180 degrees (b) 45 degrees (c) 10 degrees (d) 90 degrees
2. 2.🧺 Which of these is needed for the periscope? (a) a battery cell (b) a magnet (c) an empty juice carton (d) yeast
3. 3.🔭 Does a rough wooden board reflect light well or poorly? (a) reflects light poorly (b) reflects light well
4. 4.True or false: a mirror reflects light well. (a) False (b) True
5. 5.🛟 Who should cut the holes in the juice carton? (a) nobody needs to (b) the youngest child (c) a grown-up (d) a friend who is running
6. 6.True or false: a ruler is not needed for the periscope. (a) False (b) True
7. 7.⚖️ 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
8. 8.🔭 How many times does light bounce off a mirror in a simple periscope?
9. 9.🔭 Which of these reflects light poorly? (a) dark soil (b) aluminium foil (c) a mirror (d) a shiny steel plate
10. 10.⚖️ Fair test — does the angle of the mirrors change how clearly you see? True or false: the same mirrors is what we measure. (a) True (b) False
11. 11.True or false: yeast is needed for the periscope. (a) True (b) False
12. 12.🔭 Does dark soil reflect light well or poorly? (a) reflects light poorly (b) reflects light well
13. 13.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) an empty juice carton (b) a pencil (c) a battery cell (d) sticky tape
14. 14.🔮 Predict: you hold a written word up to a mirror. The letters look ___. (a) much bigger (b) flipped left to right (c) in colour (d) upside down only
15. 15.True or false: a balloon is needed for the periscope. (a) True (b) False
16. 16.🧺 Which of these is not needed for the periscope? (a) sticky tape (b) an empty juice carton (c) two small mirrors (d) a balloon
17. 17.🔍 Which is the odd one out? (a) a mirror (b) dark soil (c) a rough wooden board (d) a dull brick
18. 18.🔍 Which is the odd one out? (a) a shiny steel plate (b) black cloth (c) a rough wooden board (d) dark soil
19. 19.True or false: two small mirrors is needed for the periscope. (a) False (b) True
20. 20.🧺 Which of these is needed for the periscope? (a) a magnet (b) sticky tape (c) a balloon (d) turmeric powder
21. 21.🧺 Do we need a pencil for the periscope? (a) not needed (b) needed
22. 22.🧺 Do we need vinegar for the periscope? (a) needed (b) not needed
23. 23.🔭 How many mirrors does a simple periscope use?
24. 24.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) an empty juice carton (b) a ruler (c) sticky tape (d) a magnet
25. 25.⚖️ 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
26. 26.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) turmeric powder (b) two small mirrors (c) a pencil (d) an empty juice carton
27. 27.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) sticky tape (b) an empty juice carton (c) vinegar (d) a ruler
28. 28.True or false: black cloth reflects light well. (a) True (b) False
29. 29.🧺 Which of these is not needed for the periscope? (a) sticky tape (b) an empty juice carton (c) two small mirrors (d) a battery cell
30. 30.⚖️ Fair test — does the angle of the mirrors change how clearly you see? Which of these is kept the same? (a) the object we look at (b) the angle of the mirrors (c) how clear the view is
31. 31.🔮 Predict: you make the periscope tube twice as tall. You can see over ___. (a) only short walls (b) the ground (c) nothing at all (d) taller walls
32. 32.⚖️ Fair test — does the angle of the mirrors change how clearly you see? What do we do with “the same mirrors”? (a) we measure it (b) we keep it the same (c) we change it
33. 33.🔭 What does a periscope let you do? (a) see over a wall (b) see germs (c) see in the dark (d) hear far sounds
34. 34.🧺 Do we need a ruler for the periscope? (a) not needed (b) needed
35. 35.🧺 Do we need yeast for the periscope? (a) not needed (b) needed
36. 36.🔍 Which is the odd one out? (a) a shiny steel plate (b) a mirror (c) aluminium foil (d) a dull brick
37. 37.⚖️ 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
38. 38.⚖️ 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 change it (c) we measure it
39. 39.🛟 You must never point a periscope or a mirror at ___. (a) a wall (b) a tree (c) the Sun (d) a friend’s toy
40. 40.⚖️ 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) how clear the view is (c) the angle of the mirrors (d) the same mirrors

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