Periscope STEM Project Worksheet

Science experiments lesson 28: Mirror periscope · Set 985 · 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 of these is not needed for the periscope? (a) a ruler (b) two small mirrors (c) turmeric powder (d) sticky tape
2. 2.True or false: a pencil is not needed for the periscope. (a) True (b) False
3. 3.🔍 Which is the odd one out? (a) aluminium foil (b) a mirror (c) still clear water (d) a dull brick
4. 4.True or false: sticky tape is needed for the periscope. (a) True (b) False
5. 5.🔮 Predict: you hold a written word up to a mirror. The letters look ___. (a) upside down only (b) in colour (c) much bigger (d) flipped left to right
6. 6.🛟 Which mirrors are safest for a children’s periscope? (a) loose glass panes (b) broken glass bits (c) big wall mirrors (d) plastic safety mirrors
7. 7.🧺 Do we need a magnet for the periscope? (a) needed (b) not needed
8. 8.⚖️ Fair test — does the angle of the mirrors change how clearly you see? Which of these is kept the same? (a) the angle of the mirrors (b) how clear the view is (c) the same light
9. 9.🔍 Which is the odd one out? (a) a rough wooden board (b) black cloth (c) a dull brick (d) aluminium foil
10. 10.🔭 How many mirrors does a simple periscope use?
11. 11.🔭 How many times does light bounce off a mirror in a simple periscope?
12. 12.🧺 Do we need an empty juice carton for the periscope? (a) not needed (b) needed
13. 13.🔭 Which of these reflects light well? (a) black cloth (b) dark soil (c) aluminium foil (d) a rough wooden board
14. 14.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) an empty juice carton (b) turmeric powder (c) a pencil (d) a ruler
15. 15.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) sticky tape (b) two small mirrors (c) a balloon (d) a ruler
16. 16.🧺 Do we need two small mirrors for the periscope? (a) needed (b) not needed
17. 17.🔭 Does a shiny steel plate reflect light well or poorly? (a) reflects light well (b) reflects light poorly
18. 18.🧺 Do we need yeast for the periscope? (a) not needed (b) needed
19. 19.🧺 Which of these is not needed for the periscope? (a) vinegar (b) two small mirrors (c) a pencil (d) an empty juice carton
20. 20.⚖️ 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
21. 21.🔭 Does dark soil reflect light well or poorly? (a) reflects light well (b) reflects light poorly
22. 22.🧺 Which of these is not needed for the periscope? (a) a battery cell (b) sticky tape (c) an empty juice carton (d) two small mirrors
23. 23.⚖️ 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
24. 24.🔍 Which is the odd one out? (a) a shiny steel plate (b) a mirror (c) dark soil (d) still clear water
25. 25.⚖️ Fair test — does the angle of the mirrors change how clearly you see? What do we do with “the same light”? (a) we change it (b) we keep it the same (c) we measure it
26. 26.⚖️ Fair test — does the angle of the mirrors change how clearly you see? Which of these is kept the same? (a) how clear the view is (b) the angle of the mirrors (c) the same mirrors
27. 27.📘 Light bouncing off a mirror is called ___. (a) magnetism (b) reflection (c) refraction (d) evaporation
28. 28.🧺 Which of these is not needed for the periscope? (a) a pencil (b) a ruler (c) two small mirrors (d) a balloon
29. 29.🔍 Which is the odd one out? (a) aluminium foil (b) still clear water (c) a shiny steel plate (d) a rough wooden board
30. 30.🔭 Why must the two mirrors face each other and be parallel? (a) to make it heavy (b) so it looks shiny (c) so light reaches the eye (d) so it can float
31. 31.🔍 Which is the odd one out? (a) a shiny steel plate (b) dark soil (c) a rough wooden board (d) black cloth
32. 32.🧺 Do we need a ruler for the periscope? (a) not needed (b) needed
33. 33.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) sticky tape (b) yeast (c) a ruler (d) an empty juice carton
34. 34.🧺 Do we need a balloon for the periscope? (a) not needed (b) needed
35. 35.🔍 Which is the odd one out? (a) black cloth (b) a mirror (c) a shiny steel plate (d) still clear water
36. 36.True or false: aluminium foil reflects light well. (a) False (b) True
37. 37.True or false: turmeric powder is needed for the periscope. (a) True (b) False
38. 38.🧺 Which of these is needed for the periscope? (a) turmeric powder (b) an empty juice carton (c) a battery cell (d) a magnet
39. 39.🔭 Who uses a periscope to look above the water? (a) a farmer (b) a baker (c) a submarine crew (d) a pilot in a plane
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 mirrors (b) how clear the view is (c) the angle of the mirrors (d) the object we look at

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