Periscope STEM Project Worksheet

Science experiments lesson 28: Mirror periscope · Set 800 · 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 keep it the same (c) we measure it
2. 2.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) a balloon (b) an empty juice carton (c) a pencil (d) two small mirrors
3. 3.🔭 Who uses a periscope to look above the water? (a) a baker (b) a submarine crew (c) a pilot in a plane (d) a farmer
4. 4.🧺 Which of these is not needed for the periscope? (a) sticky tape (b) two small mirrors (c) a pencil (d) turmeric powder
5. 5.🛟 Which mirrors are safest for a children’s periscope? (a) plastic safety mirrors (b) loose glass panes (c) broken glass bits (d) big wall mirrors
6. 6.True or false: turmeric powder is not needed for the periscope. (a) True (b) False
7. 7.True or false: a rough wooden board reflects light well. (a) True (b) False
8. 8.⚖️ Fair test — does the angle of the mirrors change how clearly you see? Which of these is the one thing we change? (a) the angle of the mirrors (b) the same mirrors (c) the object we look at (d) the same carton
9. 9.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) two small mirrors (b) a magnet (c) an empty juice carton (d) a pencil
10. 10.True or false: a shiny steel plate reflects light well. (a) False (b) True
11. 11.🔭 Does a shiny steel plate reflect light well or poorly? (a) reflects light well (b) reflects light poorly
12. 12.True or false: a shiny steel plate reflects light poorly. (a) True (b) False
13. 13.🔍 Which is the odd one out? (a) still clear water (b) a shiny steel plate (c) a mirror (d) a rough wooden board
14. 14.🔮 Predict: you cover the top mirror with paper. What do you see? (a) a rainbow (b) two pictures (c) only darkness (d) a brighter view
15. 15.⚖️ 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 keep it the same (c) we measure it
16. 16.True or false: two small mirrors is not needed for the periscope. (a) False (b) True
17. 17.🧺 Which of these is not needed for the periscope? (a) a magnet (b) a ruler (c) sticky tape (d) a pencil
18. 18.⚖️ 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) True (b) False
19. 19.⚖️ Fair test — does the angle of the mirrors change how clearly you see? What do we do with “the same light”? (a) we keep it the same (b) we measure it (c) we change it
20. 20.🔍 Which is the odd one out? (a) a dull brick (b) aluminium foil (c) a mirror (d) a shiny steel plate
21. 21.🔍 Which is the odd one out? (a) dark soil (b) black cloth (c) a dull brick (d) aluminium foil
22. 22.📘 Light bouncing off a mirror is called ___. (a) refraction (b) magnetism (c) evaporation (d) reflection
23. 23.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) sticky tape (b) vinegar (c) an empty juice carton (d) a ruler
24. 24.⚖️ Fair test — does the angle of the mirrors change how clearly you see? Which of these is what we measure? (a) how clear the view is (b) the same carton (c) the angle of the mirrors (d) the same mirrors
25. 25.🧺 Which of these is needed for the periscope? (a) a magnet (b) a ruler (c) a balloon (d) a battery cell
26. 26.⚖️ Fair test — does the angle of the mirrors change how clearly you see? True or false: the same mirrors is kept the same. (a) True (b) False
27. 27.🛟 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
28. 28.🔭 How many mirrors does a simple periscope use?
29. 29.🧺 Which of these is not needed for the periscope? (a) sticky tape (b) a pencil (c) two small mirrors (d) vinegar
30. 30.🔮 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
31. 31.True or false: vinegar is needed for the periscope. (a) False (b) True
32. 32.🔍 Which is the odd one out? (a) a mirror (b) dark soil (c) aluminium foil (d) still clear water
33. 33.🔍 Which is the odd one out? (a) black cloth (b) a mirror (c) still clear water (d) a shiny steel plate
34. 34.⚖️ 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
35. 35.True or false: aluminium foil reflects light well. (a) True (b) False
36. 36.🔭 How many times does light bounce off a mirror in a simple periscope?
37. 37.True or false: still clear water reflects light well. (a) True (b) False
38. 38.⚖️ 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) True (b) False
39. 39.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) a pencil (b) a battery cell (c) two small mirrors (d) an empty juice carton
40. 40.🔭 At what angle are the mirrors set in a simple periscope? (a) 90 degrees (b) 10 degrees (c) 45 degrees (d) 180 degrees

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