Periscope STEM Project Worksheet

Science experiments lesson 28: Mirror periscope · Set 578 · 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.🔭 Does a rough wooden board reflect light well or poorly? (a) reflects light well (b) reflects light poorly
2. 2.⚖️ Fair test — does the angle of the mirrors change how clearly you see? Which of these is kept the same? (a) the same mirrors (b) how clear the view is (c) the angle of the mirrors
3. 3.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) a pencil (b) two small mirrors (c) sticky tape (d) a magnet
4. 4.⚖️ 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
5. 5.🧺 Do we need a ruler for the periscope? (a) not needed (b) needed
6. 6.True or false: an empty juice carton is needed for the periscope. (a) True (b) False
7. 7.🔍 Which is the odd one out? (a) dark soil (b) a shiny steel plate (c) aluminium foil (d) a mirror
8. 8.🔮 Predict: you hold a written word up to a mirror. The letters look ___. (a) upside down only (b) much bigger (c) in colour (d) flipped left to right
9. 9.⚖️ 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) True (b) False
10. 10.⚖️ 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
11. 11.🔭 Does a shiny steel plate reflect light well or poorly? (a) reflects light poorly (b) reflects light well
12. 12.⚖️ 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) False (b) True
13. 13.🔭 What does a periscope let you do? (a) see germs (b) hear far sounds (c) see over a wall (d) see in the dark
14. 14.🧺 Which of these is not needed for the periscope? (a) an empty juice carton (b) a ruler (c) two small mirrors (d) a balloon
15. 15.True or false: a pencil is needed for the periscope. (a) True (b) False
16. 16.True or false: a ruler is not needed for the periscope. (a) True (b) False
17. 17.⚖️ 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) False (b) True
18. 18.🛟 Who should cut the holes in the juice carton? (a) the youngest child (b) a friend who is running (c) a grown-up (d) nobody needs to
19. 19.🧺 Do we need a magnet for the periscope? (a) not needed (b) needed
20. 20.True or false: sticky tape is not needed for the periscope. (a) True (b) False
21. 21.🔭 Does black cloth reflect light well or poorly? (a) reflects light well (b) reflects light poorly
22. 22.🔮 Predict: you cover the top mirror with paper. What do you see? (a) two pictures (b) a brighter view (c) only darkness (d) a rainbow
23. 23.⚖️ 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
24. 24.⚖️ 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
25. 25.⚖️ 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) how clear the view is (c) the same mirrors (d) the same light
26. 26.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) an empty juice carton (b) sticky tape (c) a pencil (d) turmeric powder
27. 27.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) sticky tape (b) two small mirrors (c) a pencil (d) a battery cell
28. 28.⚖️ Fair test — does the angle of the mirrors change how clearly you see? What do we do with “the same mirrors”? (a) we keep it the same (b) we change it (c) we measure it
29. 29.🔍 Which is the odd one out? (a) black cloth (b) dark soil (c) still clear water (d) a rough wooden board
30. 30.⚖️ 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 keep it the same (b) we measure it (c) we change it
31. 31.🔭 Does a mirror reflect light well or poorly? (a) reflects light well (b) reflects light poorly
32. 32.True or false: a balloon is needed for the periscope. (a) False (b) True
33. 33.True or false: a shiny steel plate reflects light well. (a) False (b) True
34. 34.🔭 Why must the two mirrors face each other and be parallel? (a) so light reaches the eye (b) to make it heavy (c) so it looks shiny (d) so it can float
35. 35.True or false: yeast is needed for the periscope. (a) True (b) False
36. 36.🧺 Which of these is needed for the periscope? (a) sticky tape (b) a magnet (c) a balloon (d) vinegar
37. 37.🔮 Predict: you make the periscope tube twice as tall. You can see over ___. (a) only short walls (b) the ground (c) nothing at all (d) taller walls
38. 38.🔭 At what angle are the mirrors set in a simple periscope? (a) 90 degrees (b) 10 degrees (c) 45 degrees (d) 180 degrees
39. 39.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) two small mirrors (b) yeast (c) a ruler (d) sticky tape
40. 40.🔍 Which is the odd one out? (a) aluminium foil (b) dark soil (c) a rough wooden board (d) black cloth

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