Periscope STEM Project Worksheet

Science experiments lesson 28: Mirror periscope · Set 168 · 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 angle of the mirrors (b) how clear the view is (c) the same carton (d) the same mirrors
2. 2.🔭 How many mirrors does a simple periscope use?
3. 3.True or false: aluminium foil reflects light well. (a) True (b) False
4. 4.True or false: a balloon is needed for the periscope. (a) False (b) True
5. 5.True or false: a ruler is not needed for the periscope. (a) False (b) True
6. 6.🔍 Which is the odd one out? (a) a shiny steel plate (b) a rough wooden board (c) aluminium foil (d) a mirror
7. 7.🧺 Do we need a balloon for the periscope? (a) not needed (b) needed
8. 8.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) an empty juice carton (b) two small mirrors (c) sticky tape (d) a balloon
9. 9.🔭 At what angle are the mirrors set in a simple periscope? (a) 10 degrees (b) 45 degrees (c) 90 degrees (d) 180 degrees
10. 10.🔭 Which of these reflects light poorly? (a) dark soil (b) aluminium foil (c) a shiny steel plate (d) a mirror
11. 11.⚖️ 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) the same carton (c) how clear the view is (d) the same light
12. 12.⚖️ 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) False (b) True
13. 13.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) sticky tape (b) two small mirrors (c) yeast (d) a ruler
14. 14.🛟 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
15. 15.🧺 Which of these is needed for the periscope? (a) yeast (b) turmeric powder (c) two small mirrors (d) vinegar
16. 16.🛟 You must never point a periscope or a mirror at ___. (a) a wall (b) the Sun (c) a tree (d) a friend’s toy
17. 17.🧺 Which of these is not needed for the periscope? (a) two small mirrors (b) a balloon (c) sticky tape (d) a ruler
18. 18.🧺 Which of these is not needed for the periscope? (a) sticky tape (b) vinegar (c) a pencil (d) an empty juice carton
19. 19.⚖️ 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
20. 20.🔭 Does black cloth reflect light well or poorly? (a) reflects light poorly (b) reflects light well
21. 21.🔭 Does a rough wooden board reflect light well or poorly? (a) reflects light well (b) reflects light poorly
22. 22.⚖️ 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 keep it the same (c) we change it
23. 23.🔭 Which of these reflects light poorly? (a) aluminium foil (b) a dull brick (c) a shiny steel plate (d) still clear water
24. 24.🔭 Does still clear water reflect light well or poorly? (a) reflects light poorly (b) reflects light well
25. 25.🛟 Which mirrors are safest for a children’s periscope? (a) plastic safety mirrors (b) loose glass panes (c) broken glass bits (d) big wall mirrors
26. 26.⚖️ Fair test — does the angle of the mirrors change how clearly you see? True or false: how clear the view is is what we measure. (a) False (b) True
27. 27.🧺 Do we need a pencil for the periscope? (a) needed (b) not needed
28. 28.True or false: yeast is needed for the periscope. (a) False (b) True
29. 29.🧺 Do we need sticky tape for the periscope? (a) not needed (b) needed
30. 30.🔭 Does aluminium foil reflect light well or poorly? (a) reflects light well (b) reflects light poorly
31. 31.🔍 Which is the odd one out? (a) a dull brick (b) black cloth (c) a mirror (d) a rough wooden board
32. 32.⚖️ 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 same light (c) the angle of the mirrors
33. 33.True or false: two small mirrors is not needed for the periscope. (a) False (b) True
34. 34.True or false: a mirror reflects light poorly. (a) False (b) True
35. 35.🔍 Which is the odd one out? (a) a dull brick (b) black cloth (c) still clear water (d) dark soil
36. 36.🧺 Do we need yeast for the periscope? (a) not needed (b) needed
37. 37.🧺 Which of these is not needed for the periscope? (a) sticky tape (b) a ruler (c) yeast (d) a pencil
38. 38.⚖️ 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) False (b) True
39. 39.🧺 Which of these is needed for the periscope? (a) a battery cell (b) vinegar (c) a magnet (d) an empty juice carton
40. 40.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) two small mirrors (b) an empty juice carton (c) a pencil (d) a magnet

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