Periscope STEM Project Worksheet

Science experiments lesson 28: Mirror periscope · Set 516 · 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.🔮 Predict: you cover the top mirror with paper. What do you see? (a) two pictures (b) a rainbow (c) only darkness (d) a brighter view
2. 2.🔍 Which is the odd one out? (a) aluminium foil (b) a rough wooden board (c) a mirror (d) a shiny steel plate
3. 3.🔭 Which of these reflects light well? (a) a mirror (b) a dull brick (c) a rough wooden board (d) dark soil
4. 4.🔭 Does black cloth reflect light well or poorly? (a) reflects light poorly (b) reflects light well
5. 5.True or false: a mirror reflects light poorly. (a) True (b) False
6. 6.🔭 What does a periscope let you do? (a) see over a wall (b) see in the dark (c) hear far sounds (d) see germs
7. 7.🧺 Which of these is not needed for the periscope? (a) a ruler (b) vinegar (c) an empty juice carton (d) sticky tape
8. 8.True or false: two small mirrors is needed for the periscope. (a) True (b) False
9. 9.True or false: dark soil reflects light well. (a) False (b) True
10. 10.⚖️ 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 object we look at (c) the angle of the mirrors (d) the same mirrors
11. 11.🛟 Which mirrors are safest for a children’s periscope? (a) loose glass panes (b) big wall mirrors (c) plastic safety mirrors (d) broken glass bits
12. 12.🧺 Which of these is needed for the periscope? (a) a battery cell (b) a ruler (c) yeast (d) a magnet
13. 13.True or false: sticky tape is not needed for the periscope. (a) True (b) False
14. 14.🧺 Which of these is needed for the periscope? (a) vinegar (b) an empty juice carton (c) a balloon (d) turmeric powder
15. 15.True or false: an empty juice carton is not needed for the periscope. (a) False (b) True
16. 16.⚖️ 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 object we look at (c) the angle of the mirrors
17. 17.🔭 Does a mirror reflect light well or poorly? (a) reflects light poorly (b) reflects light well
18. 18.True or false: turmeric powder is needed for the periscope. (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 mirrors”? (a) we change it (b) we keep it the same (c) we measure it
20. 20.⚖️ Fair test — does the angle of the mirrors change how clearly you see? True or false: the object we look at is the one thing we change. (a) True (b) False
21. 21.🔍 Which is the odd one out? (a) a shiny steel plate (b) a dull brick (c) still clear water (d) a mirror
22. 22.True or false: a pencil is not needed for the periscope. (a) True (b) False
23. 23.True or false: still clear water reflects light poorly. (a) False (b) True
24. 24.⚖️ Fair test — does the angle of the mirrors change how clearly you see? What do we do with “the same light”? (a) we measure it (b) we change it (c) we keep it the same
25. 25.🔭 Which of these reflects light poorly? (a) a mirror (b) black cloth (c) a shiny steel plate (d) still clear water
26. 26.⚖️ Fair test — does the angle of the mirrors change how clearly you see? True or false: how clear the view is is the one thing we change. (a) True (b) False
27. 27.🧺 Which of these is not needed for the periscope? (a) a ruler (b) yeast (c) two small mirrors (d) a pencil
28. 28.🔭 At what angle are the mirrors set in a simple periscope? (a) 45 degrees (b) 10 degrees (c) 180 degrees (d) 90 degrees
29. 29.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) two small mirrors (b) a battery cell (c) a ruler (d) sticky tape
30. 30.🔭 How many mirrors does a simple periscope use?
31. 31.⚖️ Fair test — does the angle of the mirrors change how clearly you see? True or false: the object we look at is what we measure. (a) False (b) True
32. 32.🧺 Do we need vinegar 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 object we look at”? (a) we change it (b) we keep it the same (c) we measure it
34. 34.🔮 Predict: you hold a written word up to a mirror. The letters look ___. (a) upside down only (b) in colour (c) flipped left to right (d) much bigger
35. 35.🧺 Which of these is not needed for the periscope? (a) sticky tape (b) a pencil (c) turmeric powder (d) an empty juice carton
36. 36.🧺 Do we need yeast for the periscope? (a) not needed (b) needed
37. 37.🧺 Do we need a battery cell for the periscope? (a) not needed (b) needed
38. 38.⚖️ 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 measure it (c) we keep it the same
39. 39.🔭 Which of these reflects light well? (a) a rough wooden board (b) still clear water (c) a dull brick (d) dark soil
40. 40.⚖️ Fair test — does the angle of the mirrors change how clearly you see? True or false: the angle of the mirrors is kept the same. (a) False (b) True

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