Periscope STEM Project Worksheet

Science experiments lesson 28: Mirror periscope · Set 893 · 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 the one thing we change? (a) the same carton (b) the object we look at (c) the angle of the mirrors (d) the same light
2. 2.True or false: vinegar is not needed for the periscope. (a) False (b) True
3. 3.🧺 Which of these is needed for the periscope? (a) vinegar (b) yeast (c) a magnet (d) sticky tape
4. 4.🔮 Predict: you hold a written word up to a mirror. The letters look ___. (a) much bigger (b) in colour (c) flipped left to right (d) upside down only
5. 5.🔭 Which of these reflects light well? (a) black cloth (b) dark soil (c) a rough wooden board (d) aluminium foil
6. 6.🔭 Which of these reflects light poorly? (a) still clear water (b) aluminium foil (c) a dull brick (d) a mirror
7. 7.🧺 Do we need turmeric powder for the periscope? (a) needed (b) not needed
8. 8.🧺 Which of these is not needed for the periscope? (a) a battery cell (b) sticky tape (c) a pencil (d) an empty juice carton
9. 9.⚖️ 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
10. 10.🔍 Which is the odd one out? (a) a mirror (b) a rough wooden board (c) still clear water (d) aluminium foil
11. 11.🧺 Do we need two small mirrors for the periscope? (a) needed (b) not needed
12. 12.🔭 Does a mirror reflect light well or poorly? (a) reflects light poorly (b) reflects light well
13. 13.⚖️ 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
14. 14.⚖️ Fair test — does the angle of the mirrors change how clearly you see? True or false: the same light is kept the same. (a) False (b) True
15. 15.🔭 Does a shiny steel plate reflect light well or poorly? (a) reflects light well (b) reflects light poorly
16. 16.⚖️ 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
17. 17.🛟 Which mirrors are safest for a children’s periscope? (a) loose glass panes (b) big wall mirrors (c) broken glass bits (d) plastic safety mirrors
18. 18.🔍 Which is the odd one out? (a) a mirror (b) still clear water (c) aluminium foil (d) a dull brick
19. 19.⚖️ 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
20. 20.⚖️ Fair test — does the angle of the mirrors change how clearly you see? True or false: how clear the view is is kept the same. (a) False (b) True
21. 21.⚖️ 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) True (b) False
22. 22.🔮 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
23. 23.True or false: a dull brick reflects light poorly. (a) True (b) False
24. 24.⚖️ 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 measure it (c) we keep it the same
25. 25.True or false: sticky tape is needed for the periscope. (a) True (b) False
26. 26.🔭 How many mirrors does a simple periscope use?
27. 27.🧺 Do we need a balloon for the periscope? (a) not needed (b) needed
28. 28.🧺 Which of these is needed for the periscope? (a) vinegar (b) a ruler (c) a battery cell (d) a balloon
29. 29.🔮 Predict: you make the periscope tube twice as tall. You can see over ___. (a) only short walls (b) taller walls (c) the ground (d) nothing at all
30. 30.🔭 Who uses a periscope to look above the water? (a) a baker (b) a farmer (c) a submarine crew (d) a pilot in a plane
31. 31.🧺 Which of these is needed for the periscope? (a) a balloon (b) two small mirrors (c) turmeric powder (d) a battery cell
32. 32.🧺 Do we need a pencil for the periscope? (a) not needed (b) needed
33. 33.🛟 Who should cut the holes in the juice carton? (a) a friend who is running (b) a grown-up (c) the youngest child (d) nobody needs to
34. 34.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) a ruler (b) an empty juice carton (c) a magnet (d) two small mirrors
35. 35.🔭 What does a periscope let you do? (a) hear far sounds (b) see over a wall (c) see in the dark (d) see germs
36. 36.🔭 Which of these reflects light poorly? (a) still clear water (b) aluminium foil (c) a shiny steel plate (d) a rough wooden board
37. 37.🔭 Does a rough wooden board reflect light well or poorly? (a) reflects light well (b) reflects light poorly
38. 38.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) two small mirrors (b) a ruler (c) sticky tape (d) a balloon
39. 39.🔍 Which is the odd one out? (a) dark soil (b) a mirror (c) a rough wooden board (d) a dull brick
40. 40.⚖️ Fair test — does the angle of the mirrors change how clearly you see? True or false: the same carton is kept the same. (a) True (b) False

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