Periscope STEM Project Worksheet

Science experiments lesson 28: Mirror periscope · Set 545 · 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.🛟 Which mirrors are safest for a children’s periscope? (a) big wall mirrors (b) broken glass bits (c) loose glass panes (d) plastic safety mirrors
2. 2.⚖️ Fair test — does the angle of the mirrors change how clearly you see? Which of these is what we measure? (a) the same carton (b) the angle of the mirrors (c) how clear the view is (d) the object we look at
3. 3.🛟 You must never point a periscope or a mirror at ___. (a) a wall (b) a tree (c) a friend’s toy (d) the Sun
4. 4.🔍 Which is the odd one out? (a) dark soil (b) a mirror (c) a shiny steel plate (d) still clear water
5. 5.🔭 Does a mirror reflect light well or poorly? (a) reflects light poorly (b) reflects light well
6. 6.📘 Light bouncing off a mirror is called ___. (a) refraction (b) evaporation (c) reflection (d) magnetism
7. 7.🔍 Which is the odd one out? (a) dark soil (b) a shiny steel plate (c) a dull brick (d) black cloth
8. 8.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) a pencil (b) two small mirrors (c) an empty juice carton (d) yeast
9. 9.True or false: dark soil reflects light well. (a) False (b) True
10. 10.🧺 Do we need vinegar for the periscope? (a) not needed (b) needed
11. 11.⚖️ Fair test — does the angle of the mirrors change how clearly you see? Which of these is the one thing we change? (a) the object we look at (b) the same mirrors (c) the angle of the mirrors (d) how clear the view is
12. 12.🛟 Who should cut the holes in the juice carton? (a) the youngest child (b) a friend who is running (c) a grown-up (d) nobody needs to
13. 13.⚖️ 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
14. 14.🔍 Which is the odd one out? (a) a shiny steel plate (b) still clear water (c) aluminium foil (d) a rough wooden board
15. 15.🔭 Which of these reflects light well? (a) dark soil (b) a rough wooden board (c) a dull brick (d) a mirror
16. 16.🧺 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) turmeric powder
17. 17.True or false: a shiny steel plate reflects light well. (a) False (b) True
18. 18.🧺 Do we need yeast for the periscope? (a) not needed (b) needed
19. 19.True or false: a mirror reflects light well. (a) True (b) False
20. 20.🔮 Predict: you hold a written word up to a mirror. The letters look ___. (a) flipped left to right (b) much bigger (c) upside down only (d) in colour
21. 21.🧺 Which of these is needed for the periscope? (a) vinegar (b) turmeric powder (c) a battery cell (d) a ruler
22. 22.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) sticky tape (b) an empty juice carton (c) a balloon (d) a ruler
23. 23.🔍 Which is the odd one out? (a) a mirror (b) aluminium foil (c) a dull brick (d) still clear water
24. 24.🧺 Which of these is not needed for the periscope? (a) a magnet (b) sticky tape (c) a ruler (d) an empty juice carton
25. 25.🔭 Does dark soil reflect light well or poorly? (a) reflects light poorly (b) reflects light well
26. 26.🔭 Which of these reflects light poorly? (a) a shiny steel plate (b) a rough wooden board (c) still clear water (d) aluminium foil
27. 27.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) two small mirrors (b) a pencil (c) sticky tape (d) a magnet
28. 28.⚖️ Fair test — does the angle of the mirrors change how clearly you see? True or false: how clear the view is is what we measure. (a) False (b) True
29. 29.🧺 Which of these is not needed for the periscope? (a) an empty juice carton (b) a ruler (c) a balloon (d) two small mirrors
30. 30.🔭 Does aluminium foil reflect light well or poorly? (a) reflects light well (b) reflects light poorly
31. 31.⚖️ 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 keep it the same (b) we change it (c) we measure it
32. 32.🔭 Which of these reflects light well? (a) a rough wooden board (b) black cloth (c) dark soil (d) still clear water
33. 33.⚖️ Fair test — does the angle of the mirrors change how clearly you see? True or false: the same light is the one thing we change. (a) True (b) False
34. 34.🔭 Who uses a periscope to look above the water? (a) a farmer (b) a pilot in a plane (c) a baker (d) a submarine crew
35. 35.🔭 Why must the two mirrors face each other and be parallel? (a) to make it heavy (b) so light reaches the eye (c) so it can float (d) so it looks shiny
36. 36.⚖️ Fair test — does the angle of the mirrors change how clearly you see? What do we do with “the object we look at”? (a) we change it (b) we measure it (c) we keep it the same
37. 37.⚖️ 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) False (b) True
38. 38.🧺 Do we need turmeric powder for the periscope? (a) needed (b) not needed
39. 39.🔍 Which is the odd one out? (a) a mirror (b) a dull brick (c) dark soil (d) black cloth
40. 40.True or false: sticky tape is not needed for the periscope. (a) False (b) True

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