Periscope STEM Project Worksheet

Science experiments lesson 28: Mirror periscope · Set 657 · 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? What do we do with “the same carton”? (a) we keep it the same (b) we change it (c) we measure it
2. 2.⚖️ 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
3. 3.🔍 Which is the odd one out? (a) a shiny steel plate (b) a mirror (c) still clear water (d) a rough wooden board
4. 4.True or false: vinegar is not needed for the periscope. (a) True (b) False
5. 5.🔮 Predict: you hold a written word up to a mirror. The letters look ___. (a) upside down only (b) much bigger (c) flipped left to right (d) in colour
6. 6.🛟 Which mirrors are safest for a children’s periscope? (a) loose glass panes (b) plastic safety mirrors (c) big wall mirrors (d) broken glass bits
7. 7.True or false: black cloth reflects light well. (a) True (b) False
8. 8.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) a magnet (b) a ruler (c) a pencil (d) an empty juice carton
9. 9.True or false: a mirror reflects light well. (a) True (b) False
10. 10.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) sticky tape (b) two small mirrors (c) a pencil (d) vinegar
11. 11.🛟 You must never point a periscope or a mirror at ___. (a) the Sun (b) a friend’s toy (c) a tree (d) a wall
12. 12.True or false: dark soil reflects light well. (a) True (b) False
13. 13.🔭 Does black cloth reflect light well or poorly? (a) reflects light poorly (b) reflects light well
14. 14.🔭 How many times does light bounce off a mirror in a simple periscope?
15. 15.⚖️ 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 same light (c) the same carton (d) the angle of the mirrors
16. 16.🔭 What does a periscope let you do? (a) see in the dark (b) see germs (c) see over a wall (d) hear far sounds
17. 17.🧺 Do we need sticky tape for the periscope? (a) not needed (b) needed
18. 18.⚖️ 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
19. 19.True or false: a dull brick reflects light well. (a) True (b) False
20. 20.🔭 Does a mirror reflect light well or poorly? (a) reflects light poorly (b) reflects light well
21. 21.🧺 Which of these is not needed for the periscope? (a) sticky tape (b) two small mirrors (c) yeast (d) a pencil
22. 22.True or false: dark soil reflects light poorly. (a) False (b) True
23. 23.True or false: black cloth reflects light poorly. (a) False (b) True
24. 24.🛟 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
25. 25.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) two small mirrors (b) sticky tape (c) a battery cell (d) an empty juice carton
26. 26.🧺 Which of these is not needed for the periscope? (a) a pencil (b) a battery cell (c) sticky tape (d) two small mirrors
27. 27.True or false: a magnet is not needed for the periscope. (a) False (b) True
28. 28.⚖️ 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
29. 29.⚖️ Fair test — does the angle of the mirrors change how clearly you see? True or false: the same carton is what we measure. (a) False (b) True
30. 30.True or false: a mirror reflects light poorly. (a) False (b) True
31. 31.🧺 Which of these is not needed for the periscope? (a) a pencil (b) an empty juice carton (c) sticky tape (d) turmeric powder
32. 32.True or false: a dull brick reflects light poorly. (a) False (b) True
33. 33.🔮 Predict: you cover the top mirror with paper. What do you see? (a) only darkness (b) a rainbow (c) two pictures (d) a brighter view
34. 34.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) an empty juice carton (b) turmeric powder (c) a pencil (d) a ruler
35. 35.⚖️ Fair test — does the angle of the mirrors change how clearly you see? True or false: the same light is kept the same. (a) True (b) False
36. 36.🧺 Do we need two small mirrors for the periscope? (a) not needed (b) needed
37. 37.⚖️ Fair test — does the angle of the mirrors change how clearly you see? What do we do with “the same mirrors”? (a) we measure it (b) we keep it the same (c) we change it
38. 38.🔍 Which is the odd one out? (a) dark soil (b) a rough wooden board (c) aluminium foil (d) black cloth
39. 39.⚖️ 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
40. 40.🔭 How many mirrors does a simple periscope use?

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