Periscope STEM Project Worksheet

Science experiments lesson 28: Mirror periscope · Set 891 · 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.True or false: a dull brick reflects light well. (a) True (b) False
2. 2.⚖️ 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) how clear the view is (d) the same carton
3. 3.🔍 Which is the odd one out? (a) a rough wooden board (b) a mirror (c) dark soil (d) a dull brick
4. 4.⚖️ Fair test — does the angle of the mirrors change how clearly you see? Which of these is kept the same? (a) the same light (b) how clear the view is (c) the angle of the mirrors
5. 5.⚖️ 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 change it (b) we measure it (c) we keep it the same
6. 6.True or false: a balloon is needed for the periscope. (a) False (b) True
7. 7.⚖️ 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 mirrors
8. 8.True or false: dark soil reflects light poorly. (a) False (b) True
9. 9.🧺 Do we need a battery cell for the periscope? (a) needed (b) not needed
10. 10.🔭 Does dark soil reflect light well or poorly? (a) reflects light well (b) reflects light poorly
11. 11.⚖️ 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) how clear the view is (d) the angle of the mirrors
12. 12.⚖️ Fair test — does the angle of the mirrors change how clearly you see? What do we do with “the same light”? (a) we keep it the same (b) we change it (c) we measure it
13. 13.🔭 Does a dull brick reflect light well or poorly? (a) reflects light well (b) reflects light poorly
14. 14.🛟 Which mirrors are safest for a children’s periscope? (a) loose glass panes (b) broken glass bits (c) big wall mirrors (d) plastic safety mirrors
15. 15.⚖️ Fair test — does the angle of the mirrors change how clearly you see? True or false: how clear the view is is the one thing we change. (a) False (b) True
16. 16.⚖️ 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 keep it the same (b) we measure it (c) we change it
17. 17.True or false: an empty juice carton is not needed for the periscope. (a) True (b) False
18. 18.True or false: a rough wooden board reflects light well. (a) True (b) False
19. 19.🧺 Which of these is needed for the periscope? (a) two small mirrors (b) a magnet (c) a balloon (d) vinegar
20. 20.⚖️ 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
21. 21.True or false: aluminium foil reflects light well. (a) True (b) False
22. 22.🔮 Predict: you hold a written word up to a mirror. The letters look ___. (a) much bigger (b) flipped left to right (c) in colour (d) upside down only
23. 23.🔭 How many mirrors does a simple periscope use?
24. 24.⚖️ 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
25. 25.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) two small mirrors (b) an empty juice carton (c) a battery cell (d) a pencil
26. 26.🔍 Which is the odd one out? (a) a mirror (b) still clear water (c) aluminium foil (d) dark soil
27. 27.🧺 Do we need a balloon for the periscope? (a) needed (b) not needed
28. 28.🧺 Which of these is not needed for the periscope? (a) two small mirrors (b) sticky tape (c) an empty juice carton (d) yeast
29. 29.🔭 How many times does light bounce off a mirror in a simple periscope?
30. 30.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) a pencil (b) two small mirrors (c) an empty juice carton (d) yeast
31. 31.🛟 Who should cut the holes in the juice carton? (a) the youngest child (b) nobody needs to (c) a friend who is running (d) a grown-up
32. 32.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) two small mirrors (b) a magnet (c) sticky tape (d) a pencil
33. 33.True or false: a ruler is needed for the periscope. (a) False (b) True
34. 34.🔭 Does a mirror reflect light well or poorly? (a) reflects light well (b) reflects light poorly
35. 35.🔭 Which of these reflects light poorly? (a) black cloth (b) a shiny steel plate (c) a mirror (d) still clear water
36. 36.🔮 Predict: you cover the top mirror with paper. What do you see? (a) a brighter view (b) a rainbow (c) only darkness (d) two pictures
37. 37.🔭 Which of these reflects light well? (a) a mirror (b) a dull brick (c) a rough wooden board (d) black cloth
38. 38.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) an empty juice carton (b) two small mirrors (c) a pencil (d) a balloon
39. 39.⚖️ Fair test — does the angle of the mirrors change how clearly you see? True or false: the same light is what we measure. (a) False (b) True
40. 40.🧺 Which of these is not needed for the periscope? (a) a magnet (b) sticky tape (c) a pencil (d) two small mirrors

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