Periscope STEM Project Worksheet

Science experiments lesson 28: Mirror periscope · Set 757 · 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? Which of these is kept the same? (a) the angle of the mirrors (b) how clear the view is (c) the object we look at
2. 2.🧺 Do we need turmeric powder for the periscope? (a) not needed (b) needed
3. 3.🔮 Predict: you hold a written word up to a mirror. The letters look ___. (a) flipped left to right (b) in colour (c) upside down only (d) much bigger
4. 4.⚖️ 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 same mirrors (c) the angle of the mirrors
5. 5.🔭 What does a periscope let you do? (a) see in the dark (b) see over a wall (c) hear far sounds (d) see germs
6. 6.⚖️ Fair test — does the angle of the mirrors change how clearly you see? True or false: the same carton is what we measure. (a) True (b) False
7. 7.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) a ruler (b) an empty juice carton (c) sticky tape (d) a balloon
8. 8.🛟 Which mirrors are safest for a children’s periscope? (a) big wall mirrors (b) plastic safety mirrors (c) loose glass panes (d) broken glass bits
9. 9.⚖️ Fair test — does the angle of the mirrors change how clearly you see? What do we do with “the same carton”? (a) we change it (b) we keep it the same (c) we measure it
10. 10.🔍 Which is the odd one out? (a) black cloth (b) dark soil (c) a dull brick (d) a shiny steel plate
11. 11.⚖️ Fair test — does the angle of the mirrors change how clearly you see? Which of these is what we measure? (a) the object we look at (b) the same light (c) the same carton (d) how clear the view is
12. 12.⚖️ 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) False (b) True
13. 13.True or false: a mirror reflects light poorly. (a) True (b) False
14. 14.🔮 Predict: you make the periscope tube twice as tall. You can see over ___. (a) only short walls (b) the ground (c) taller walls (d) nothing at all
15. 15.🔭 Which of these reflects light poorly? (a) still clear water (b) dark soil (c) aluminium foil (d) a mirror
16. 16.🧺 Which of these is needed for the periscope? (a) turmeric powder (b) a balloon (c) two small mirrors (d) vinegar
17. 17.🔭 Does dark soil reflect light well or poorly? (a) reflects light well (b) reflects light poorly
18. 18.True or false: an empty juice carton is not needed for the periscope. (a) False (b) True
19. 19.🔮 Predict: you cover the top mirror with paper. What do you see? (a) two pictures (b) a brighter view (c) a rainbow (d) only darkness
20. 20.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) two small mirrors (b) a magnet (c) a ruler (d) an empty juice carton
21. 21.🧺 Do we need two small mirrors for the periscope? (a) needed (b) not needed
22. 22.True or false: a balloon is needed for the periscope. (a) True (b) False
23. 23.🔭 Which of these reflects light poorly? (a) a shiny steel plate (b) still clear water (c) a mirror (d) a dull brick
24. 24.🔭 At what angle are the mirrors set in a simple periscope? (a) 180 degrees (b) 45 degrees (c) 10 degrees (d) 90 degrees
25. 25.⚖️ 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
26. 26.⚖️ 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
27. 27.🔭 How many mirrors does a simple periscope use?
28. 28.⚖️ 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) True (b) False
29. 29.🧺 Do we need sticky tape for the periscope? (a) not needed (b) needed
30. 30.🧺 Do we need a pencil for the periscope? (a) needed (b) not needed
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 measure it (b) we change it (c) we keep it the same
32. 32.🔭 Does a rough wooden board reflect light well or poorly? (a) reflects light poorly (b) reflects light well
33. 33.🔭 Which of these reflects light well? (a) a rough wooden board (b) black cloth (c) a mirror (d) a dull brick
34. 34.⚖️ Fair test — does the angle of the mirrors change how clearly you see? True or false: the angle of the mirrors is what we measure. (a) True (b) False
35. 35.🧺 Do we need a ruler for the periscope? (a) needed (b) not needed
36. 36.⚖️ 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 measure it (b) we change it (c) we keep it the same
37. 37.⚖️ 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) the angle of the mirrors (c) the same carton (d) the object we look at
38. 38.True or false: a pencil is needed for the periscope. (a) False (b) True
39. 39.⚖️ 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
40. 40.🔭 Does a shiny steel plate reflect light well or poorly? (a) reflects light well (b) reflects light poorly

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