Periscope STEM Project Worksheet

Science experiments lesson 28: Mirror periscope · Set 109 · 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 aluminium foil reflect light well or poorly? (a) reflects light well (b) reflects light poorly
2. 2.🧺 Do we need a magnet for the periscope? (a) not needed (b) needed
3. 3.🔭 Does black cloth reflect light well or poorly? (a) reflects light poorly (b) reflects light well
4. 4.🧺 Do we need yeast for the periscope? (a) needed (b) not needed
5. 5.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) turmeric powder (b) a pencil (c) two small mirrors (d) a ruler
6. 6.True or false: a dull brick reflects light well. (a) True (b) False
7. 7.🔭 How many times does light bounce off a mirror in a simple periscope?
8. 8.🧺 Do we need a pencil for the periscope? (a) not needed (b) needed
9. 9.🧺 Do we need turmeric powder for the periscope? (a) needed (b) not needed
10. 10.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) a ruler (b) two small mirrors (c) a magnet (d) an empty juice carton
11. 11.🔍 Which is the odd one out? (a) black cloth (b) dark soil (c) a shiny steel plate (d) a rough wooden board
12. 12.True or false: yeast is needed for the periscope. (a) False (b) True
13. 13.True or false: an empty juice carton is needed for the periscope. (a) True (b) False
14. 14.🔭 Does a dull brick reflect light well or poorly? (a) reflects light poorly (b) reflects light well
15. 15.🔍 Which is the odd one out? (a) dark soil (b) black cloth (c) a dull brick (d) a mirror
16. 16.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) sticky tape (b) two small mirrors (c) an empty juice carton (d) vinegar
17. 17.⚖️ 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 angle of the mirrors (c) the same light (d) the object we look at
18. 18.True or false: a magnet is needed for the periscope. (a) True (b) False
19. 19.🧺 Which of these is needed for the periscope? (a) a battery cell (b) turmeric powder (c) a magnet (d) a pencil
20. 20.🔭 How many mirrors does a simple periscope use?
21. 21.🔮 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
22. 22.⚖️ 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
23. 23.🛟 Who should cut the holes in the juice carton? (a) the youngest child (b) a grown-up (c) nobody needs to (d) a friend who is running
24. 24.⚖️ Fair test — does the angle of the mirrors change how clearly you see? Which of these is kept the same? (a) the same carton (b) how clear the view is (c) the angle of the mirrors
25. 25.⚖️ 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
26. 26.🔮 Predict: you hold a written word up to a mirror. The letters look ___. (a) upside down only (b) flipped left to right (c) much bigger (d) in colour
27. 27.🧺 Which of these is not needed for the periscope? (a) a pencil (b) two small mirrors (c) a ruler (d) yeast
28. 28.🔍 Which is the odd one out? (a) still clear water (b) black cloth (c) a mirror (d) a shiny steel plate
29. 29.⚖️ 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
30. 30.True or false: dark soil reflects light well. (a) False (b) True
31. 31.⚖️ 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
32. 32.🔭 Does a rough wooden board reflect light well or poorly? (a) reflects light well (b) reflects light poorly
33. 33.⚖️ 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
34. 34.⚖️ Fair test — does the angle of the mirrors change how clearly you see? Which of these is what we measure? (a) the same light (b) the same mirrors (c) the angle of the mirrors (d) how clear the view is
35. 35.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) a battery cell (b) a ruler (c) two small mirrors (d) sticky tape
36. 36.🛟 Which mirrors are safest for a children’s periscope? (a) broken glass bits (b) big wall mirrors (c) loose glass panes (d) plastic safety mirrors
37. 37.🧺 Which of these is not needed for the periscope? (a) two small mirrors (b) turmeric powder (c) a pencil (d) an empty juice carton
38. 38.🔮 Predict: you make the periscope tube twice as tall. You can see over ___. (a) the ground (b) taller walls (c) only short walls (d) nothing at all
39. 39.🧺 Do we need a ruler for the periscope? (a) needed (b) not needed
40. 40.True or false: a pencil is not needed for the periscope. (a) True (b) False

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