Periscope STEM Project Worksheet

Science experiments lesson 28: Mirror periscope · Set 476 · 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.⚖️ 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
2. 2.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) yeast (b) two small mirrors (c) sticky tape (d) an empty juice carton
3. 3.🔭 How many times does light bounce off a mirror in a simple periscope?
4. 4.🔮 Predict: you make the periscope tube twice as tall. You can see over ___. (a) the ground (b) nothing at all (c) only short walls (d) taller walls
5. 5.⚖️ Fair test — does the angle of the mirrors change how clearly you see? True or false: the object we look at is kept the same. (a) True (b) False
6. 6.🧺 Which of these is not needed for the periscope? (a) two small mirrors (b) a pencil (c) an empty juice carton (d) a balloon
7. 7.🧺 Do we need sticky tape for the periscope? (a) not needed (b) needed
8. 8.🛟 Which mirrors are safest for a children’s periscope? (a) loose glass panes (b) big wall mirrors (c) plastic safety mirrors (d) broken glass bits
9. 9.True or false: turmeric powder is needed for the periscope. (a) True (b) False
10. 10.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) turmeric powder (b) sticky tape (c) two small mirrors (d) a ruler
11. 11.🔭 Which of these reflects light poorly? (a) still clear water (b) a shiny steel plate (c) a mirror (d) a rough wooden board
12. 12.🧺 Which of these is needed for the periscope? (a) a battery cell (b) turmeric powder (c) two small mirrors (d) yeast
13. 13.🔭 What does a periscope let you do? (a) see germs (b) see in the dark (c) see over a wall (d) hear far sounds
14. 14.🧺 Do we need turmeric powder for the periscope? (a) needed (b) not needed
15. 15.True or false: yeast is needed for the periscope. (a) False (b) True
16. 16.🧺 Which of these is not needed for the periscope? (a) a battery cell (b) an empty juice carton (c) sticky tape (d) two small mirrors
17. 17.⚖️ Fair test — does the angle of the mirrors change how clearly you see? True or false: the same carton is what we measure. (a) False (b) True
18. 18.⚖️ Fair test — does the angle of the mirrors change how clearly you see? True or false: the same carton is kept the same. (a) False (b) True
19. 19.🧺 Which of these is needed for the periscope? (a) a magnet (b) a battery cell (c) an empty juice carton (d) turmeric powder
20. 20.⚖️ 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
21. 21.🔭 How many mirrors does a simple periscope use?
22. 22.True or false: still clear water 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 what we measure. (a) False (b) True
24. 24.🧺 Do we need a pencil for the periscope? (a) not needed (b) needed
25. 25.🔭 Does a mirror reflect light well or poorly? (a) reflects light well (b) reflects light poorly
26. 26.🔮 Predict: you hold a written word up to a mirror. The letters look ___. (a) much bigger (b) upside down only (c) in colour (d) flipped left to right
27. 27.⚖️ 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 mirrors (d) the same light
28. 28.🔭 Which of these reflects light well? (a) a shiny steel plate (b) a dull brick (c) a rough wooden board (d) dark soil
29. 29.🔍 Which is the odd one out? (a) aluminium foil (b) a mirror (c) black cloth (d) still clear water
30. 30.🧺 Do we need a magnet for the periscope? (a) not needed (b) needed
31. 31.🛟 You must never point a periscope or a mirror at ___. (a) a wall (b) the Sun (c) a tree (d) a friend’s toy
32. 32.🔭 Does dark soil reflect light well or poorly? (a) reflects light poorly (b) reflects light well
33. 33.🧺 Which of these is needed for the periscope? (a) a balloon (b) yeast (c) turmeric powder (d) a pencil
34. 34.True or false: a shiny steel plate reflects light well. (a) True (b) False
35. 35.🔭 Does a dull brick reflect light well or poorly? (a) reflects light poorly (b) reflects light well
36. 36.🔍 Which is the odd one out? (a) still clear water (b) a dull brick (c) black cloth (d) a rough wooden board
37. 37.⚖️ 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
38. 38.⚖️ 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 mirrors (c) how clear the view is (d) the same carton
39. 39.🧺 Do we need yeast for the periscope? (a) needed (b) not needed
40. 40.🔭 Who uses a periscope to look above the water? (a) a baker (b) a farmer (c) a pilot in a plane (d) a submarine crew

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