Periscope STEM Project Worksheet

Science experiments lesson 28: Mirror periscope · Set 989 · 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.🧺 Which of these is not needed for the periscope? (a) sticky tape (b) an empty juice carton (c) a pencil (d) a magnet
2. 2.⚖️ Fair test — does the angle of the mirrors change how clearly you see? True or false: the same light is what we measure. (a) True (b) False
3. 3.🔭 Does black cloth reflect light well or poorly? (a) reflects light poorly (b) reflects light well
4. 4.⚖️ Fair test — does the angle of the mirrors change how clearly you see? True or false: the object we look at is what we measure. (a) True (b) False
5. 5.True or false: aluminium foil reflects light poorly. (a) False (b) True
6. 6.🛟 You must never point a periscope or a mirror at ___. (a) a wall (b) a friend’s toy (c) a tree (d) the Sun
7. 7.True or false: dark soil reflects light well. (a) False (b) True
8. 8.🔭 Who uses a periscope to look above the water? (a) a baker (b) a pilot in a plane (c) a farmer (d) a submarine crew
9. 9.True or false: an empty juice carton is not needed for the periscope. (a) False (b) True
10. 10.🔭 How many mirrors does a simple periscope use?
11. 11.🔭 Does dark soil reflect light well or poorly? (a) reflects light well (b) reflects light poorly
12. 12.🛟 Which mirrors are safest for a children’s periscope? (a) plastic safety mirrors (b) broken glass bits (c) loose glass panes (d) big wall mirrors
13. 13.🔭 Why must the two mirrors face each other and be parallel? (a) so it looks shiny (b) so light reaches the eye (c) so it can float (d) to make it heavy
14. 14.True or false: a battery cell is not needed for the periscope. (a) True (b) False
15. 15.True or false: yeast is not needed for the periscope. (a) False (b) True
16. 16.🧺 Do we need an empty juice carton for the periscope? (a) not needed (b) needed
17. 17.🔭 Does a mirror reflect light well or poorly? (a) reflects light well (b) reflects light poorly
18. 18.⚖️ 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) the same mirrors (d) how clear the view is
19. 19.🔭 Does a dull brick reflect light well or poorly? (a) reflects light poorly (b) reflects light well
20. 20.True or false: a dull brick reflects light poorly. (a) False (b) True
21. 21.⚖️ 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 object we look at (c) the angle of the mirrors
22. 22.🧺 Which of these is needed for the periscope? (a) a pencil (b) yeast (c) a balloon (d) a battery cell
23. 23.True or false: a dull brick reflects light well. (a) True (b) False
24. 24.True or false: two small mirrors is not needed for the periscope. (a) False (b) True
25. 25.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) a pencil (b) an empty juice carton (c) turmeric powder (d) a ruler
26. 26.🛟 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
27. 27.⚖️ 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
28. 28.🔍 Which is the odd one out? (a) a dull brick (b) a shiny steel plate (c) aluminium foil (d) still clear water
29. 29.⚖️ 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 keep it the same (b) we change it (c) we measure it
30. 30.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) an empty juice carton (b) a pencil (c) a magnet (d) a ruler
31. 31.🧺 Which of these is not needed for the periscope? (a) vinegar (b) an empty juice carton (c) sticky tape (d) a ruler
32. 32.True or false: a mirror reflects light well. (a) False (b) True
33. 33.⚖️ Fair test — does the angle of the mirrors change how clearly you see? What do we do with “the same light”? (a) we measure it (b) we keep it the same (c) we change it
34. 34.🔭 Does a rough wooden board reflect light well or poorly? (a) reflects light well (b) reflects light poorly
35. 35.🧺 Which of these is not needed for the periscope? (a) a ruler (b) sticky tape (c) turmeric powder (d) two small mirrors
36. 36.🧺 Do we need yeast for the periscope? (a) not needed (b) needed
37. 37.🧺 Do we need turmeric powder for the periscope? (a) needed (b) not needed
38. 38.⚖️ Fair test — does the angle of the mirrors change how clearly you see? True or false: the object we look at is the one thing we change. (a) False (b) True
39. 39.⚖️ 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 change it (c) we measure it
40. 40.⚖️ 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) False (b) True

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