Periscope STEM Project Worksheet

Science experiments lesson 28: Mirror periscope · Set 304 · 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.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) sticky tape (b) a magnet (c) an empty juice carton (d) two small mirrors
2. 2.🔍 Which is the odd one out? (a) a mirror (b) a shiny steel plate (c) aluminium foil (d) black cloth
3. 3.🧺 Which of these is needed for the periscope? (a) a magnet (b) a ruler (c) a battery cell (d) a balloon
4. 4.🛟 You must never point a periscope or a mirror at ___. (a) a wall (b) the Sun (c) a tree (d) a friend’s toy
5. 5.🧺 Which of these is not needed for the periscope? (a) a pencil (b) a battery cell (c) sticky tape (d) an empty juice carton
6. 6.⚖️ 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
7. 7.🔭 Which of these reflects light poorly? (a) a shiny steel plate (b) aluminium foil (c) a mirror (d) dark soil
8. 8.⚖️ 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
9. 9.🧺 Which of these is not needed for the periscope? (a) yeast (b) two small mirrors (c) an empty juice carton (d) a pencil
10. 10.🧺 Do we need a pencil for the periscope? (a) needed (b) not needed
11. 11.🔭 Who uses a periscope to look above the water? (a) a submarine crew (b) a farmer (c) a baker (d) a pilot in a plane
12. 12.🔭 How many times does light bounce off a mirror in a simple periscope?
13. 13.🧺 Do we need sticky tape for the periscope? (a) needed (b) not needed
14. 14.🔭 What does a periscope let you do? (a) hear far sounds (b) see germs (c) see over a wall (d) see in the dark
15. 15.🧺 Which of these is needed for the periscope? (a) yeast (b) vinegar (c) sticky tape (d) a balloon
16. 16.⚖️ 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
17. 17.⚖️ 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
18. 18.🔍 Which is the odd one out? (a) a shiny steel plate (b) a mirror (c) still clear water (d) a rough wooden board
19. 19.True or false: vinegar is needed for the periscope. (a) True (b) False
20. 20.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) an empty juice carton (b) vinegar (c) sticky tape (d) two small mirrors
21. 21.🧺 Do we need a magnet for the periscope? (a) needed (b) not needed
22. 22.⚖️ 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
23. 23.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) two small mirrors (b) a ruler (c) a pencil (d) a balloon
24. 24.🔮 Predict: you hold a written word up to a mirror. The letters look ___. (a) flipped left to right (b) much bigger (c) in colour (d) upside down only
25. 25.True or false: yeast is needed for the periscope. (a) False (b) True
26. 26.⚖️ 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 light (c) the angle of the mirrors (d) the same carton
27. 27.🧺 Which of these is not needed for the periscope? (a) a ruler (b) two small mirrors (c) vinegar (d) a pencil
28. 28.🧺 Which of these is needed for the periscope? (a) an empty juice carton (b) a battery cell (c) vinegar (d) yeast
29. 29.🛟 Who should cut the holes in the juice carton? (a) a friend who is running (b) the youngest child (c) nobody needs to (d) a grown-up
30. 30.🛟 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
31. 31.True or false: sticky tape is not needed for the periscope. (a) True (b) False
32. 32.🔭 Which of these reflects light well? (a) a shiny steel plate (b) a rough wooden board (c) a dull brick (d) dark soil
33. 33.True or false: a ruler is not needed for the periscope. (a) True (b) False
34. 34.🧺 Do we need a balloon for the periscope? (a) not needed (b) needed
35. 35.🔭 Which of these reflects light poorly? (a) a mirror (b) a shiny steel plate (c) aluminium foil (d) a dull brick
36. 36.🔮 Predict: you cover the top mirror with paper. What do you see? (a) a rainbow (b) two pictures (c) a brighter view (d) only darkness
37. 37.🧺 Do we need a ruler for the periscope? (a) not needed (b) needed
38. 38.🔭 Does a mirror reflect light well or poorly? (a) reflects light poorly (b) reflects light well
39. 39.🔭 How many mirrors does a simple periscope use?
40. 40.🔍 Which is the odd one out? (a) a mirror (b) a dull brick (c) still clear water (d) aluminium foil

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