Periscope STEM Project Worksheet

Science experiments lesson 28: Mirror periscope · Set 616 · 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? True or false: the same carton is the one thing we change. (a) True (b) False
2. 2.🔍 Which is the odd one out? (a) a dull brick (b) black cloth (c) a mirror (d) a rough wooden board
3. 3.True or false: vinegar is needed for the periscope. (a) False (b) True
4. 4.True or false: a magnet is needed for the periscope. (a) False (b) True
5. 5.⚖️ 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
6. 6.🧺 Which of these is needed for the periscope? (a) vinegar (b) two small mirrors (c) a balloon (d) yeast
7. 7.🛟 Who should cut the holes in the juice carton? (a) nobody needs to (b) the youngest child (c) a friend who is running (d) a grown-up
8. 8.🧺 Which of these is not needed for the periscope? (a) two small mirrors (b) a pencil (c) a balloon (d) an empty juice carton
9. 9.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) an empty juice carton (b) a pencil (c) vinegar (d) two small mirrors
10. 10.🔭 At what angle are the mirrors set in a simple periscope? (a) 45 degrees (b) 10 degrees (c) 180 degrees (d) 90 degrees
11. 11.🧺 Which of these is not needed for the periscope? (a) an empty juice carton (b) a ruler (c) sticky tape (d) a battery cell
12. 12.🛟 Which mirrors are safest for a children’s periscope? (a) loose glass panes (b) broken glass bits (c) plastic safety mirrors (d) big wall mirrors
13. 13.🔭 Which of these reflects light well? (a) aluminium foil (b) a dull brick (c) a rough wooden board (d) dark soil
14. 14.🔭 Which of these reflects light poorly? (a) still clear water (b) a shiny steel plate (c) black cloth (d) a mirror
15. 15.True or false: sticky tape is needed for the periscope. (a) False (b) True
16. 16.🧺 Do we need an empty juice carton for the periscope? (a) not needed (b) needed
17. 17.🔮 Predict: you cover the top mirror with paper. What do you see? (a) a rainbow (b) a brighter view (c) only darkness (d) two pictures
18. 18.🧺 Do we need a balloon for the periscope? (a) not needed (b) needed
19. 19.🧺 Which of these is needed for the periscope? (a) a battery cell (b) a pencil (c) turmeric powder (d) a balloon
20. 20.🧺 Which of these is needed for the periscope? (a) a magnet (b) an empty juice carton (c) a balloon (d) yeast
21. 21.🔭 Does aluminium foil reflect light well or poorly? (a) reflects light poorly (b) reflects light well
22. 22.🧺 Do we need sticky tape for the periscope? (a) needed (b) not needed
23. 23.🔭 Who uses a periscope to look above the water? (a) a farmer (b) a baker (c) a pilot in a plane (d) a submarine crew
24. 24.🔭 How many mirrors does a simple periscope use?
25. 25.🔍 Which is the odd one out? (a) black cloth (b) a rough wooden board (c) a shiny steel plate (d) a dull brick
26. 26.🛟 You must never point a periscope or a mirror at ___. (a) a tree (b) a wall (c) a friend’s toy (d) the Sun
27. 27.🧺 Do we need two small mirrors for the periscope? (a) not needed (b) needed
28. 28.True or false: sticky tape is not needed for the periscope. (a) False (b) True
29. 29.🧺 Which of these is not needed for the periscope? (a) a ruler (b) a pencil (c) sticky tape (d) a magnet
30. 30.⚖️ 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
31. 31.🔍 Which is the odd one out? (a) black cloth (b) a rough wooden board (c) still clear water (d) a dull brick
32. 32.🧺 Do we need turmeric powder for the periscope? (a) needed (b) not needed
33. 33.⚖️ Fair test — does the angle of the mirrors change how clearly you see? What do we do with “the same mirrors”? (a) we change it (b) we measure it (c) we keep it the same
34. 34.🔭 Does still clear water reflect light well or poorly? (a) reflects light well (b) reflects light poorly
35. 35.⚖️ 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 measure it (b) we change it (c) we keep it the same
36. 36.🔮 Predict: you hold a written word up to a mirror. The letters look ___. (a) upside down only (b) much bigger (c) flipped left to right (d) in colour
37. 37.📘 Light bouncing off a mirror is called ___. (a) magnetism (b) evaporation (c) reflection (d) refraction
38. 38.🔭 Does a mirror reflect light well or poorly? (a) reflects light poorly (b) reflects light well
39. 39.🔭 Does black cloth reflect light well or poorly? (a) reflects light poorly (b) reflects light well
40. 40.True or false: a shiny steel plate reflects light poorly. (a) False (b) True

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