Periscope STEM Project Worksheet

Science experiments lesson 28: Mirror periscope · Set 554 · 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.🧺 Do we need a pencil for the periscope? (a) needed (b) not needed
2. 2.🧺 Do we need turmeric powder for the periscope? (a) not needed (b) needed
3. 3.🔭 How many mirrors does a simple periscope use?
4. 4.⚖️ 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
5. 5.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) a magnet (b) sticky tape (c) a ruler (d) a pencil
6. 6.🧺 Which of these is not needed for the periscope? (a) an empty juice carton (b) a balloon (c) a pencil (d) a ruler
7. 7.⚖️ 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 measure it (b) we keep it the same (c) we change it
8. 8.True or false: aluminium foil reflects light poorly. (a) True (b) False
9. 9.True or false: a mirror reflects light poorly. (a) True (b) False
10. 10.🔭 Does dark soil reflect light well or poorly? (a) reflects light poorly (b) reflects light well
11. 11.⚖️ 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
12. 12.⚖️ 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) how clear the view is (c) the angle of the mirrors (d) the object we look at
13. 13.🧺 Do we need a balloon for the periscope? (a) needed (b) not needed
14. 14.🛟 Who should cut the holes in the juice carton? (a) nobody needs to (b) a friend who is running (c) a grown-up (d) the youngest child
15. 15.True or false: a pencil is needed for the periscope. (a) True (b) False
16. 16.🔭 Why must the two mirrors face each other and be parallel? (a) so it looks shiny (b) so it can float (c) to make it heavy (d) so light reaches the eye
17. 17.True or false: yeast is needed for the periscope. (a) True (b) False
18. 18.🔭 Which of these reflects light well? (a) dark soil (b) black cloth (c) a rough wooden board (d) aluminium foil
19. 19.🔮 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
20. 20.⚖️ Fair test — does the angle of the mirrors change how clearly you see? What do we do with “the same mirrors”? (a) we keep it the same (b) we measure it (c) we change it
21. 21.🧺 Do we need a battery cell for the periscope? (a) not needed (b) needed
22. 22.True or false: black cloth reflects light poorly. (a) True (b) False
23. 23.True or false: a magnet is not needed for the periscope. (a) False (b) True
24. 24.🔍 Which is the odd one out? (a) a mirror (b) a dull brick (c) still clear water (d) a shiny steel plate
25. 25.🔭 Who uses a periscope to look above the water? (a) a submarine crew (b) a baker (c) a pilot in a plane (d) a farmer
26. 26.🔭 Does a shiny steel plate reflect light well or poorly? (a) reflects light well (b) reflects light poorly
27. 27.True or false: dark soil reflects light poorly. (a) False (b) True
28. 28.🔭 How many times does light bounce off a mirror in a simple periscope?
29. 29.🛟 Which mirrors are safest for a children’s periscope? (a) loose glass panes (b) big wall mirrors (c) plastic safety mirrors (d) broken glass bits
30. 30.🔮 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
31. 31.🔍 Which is the odd one out? (a) black cloth (b) a shiny steel plate (c) a mirror (d) still clear water
32. 32.🔭 At what angle are the mirrors set in a simple periscope? (a) 90 degrees (b) 180 degrees (c) 10 degrees (d) 45 degrees
33. 33.True or false: two small mirrors is not needed for the periscope. (a) False (b) True
34. 34.⚖️ 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) True (b) False
35. 35.⚖️ Fair test — does the angle of the mirrors change how clearly you see? True or false: the same mirrors is kept the same. (a) False (b) True
36. 36.🧺 Which of these is needed for the periscope? (a) a balloon (b) two small mirrors (c) yeast (d) turmeric powder
37. 37.⚖️ Fair test — does the angle of the mirrors change how clearly you see? True or false: the same light is the one thing we change. (a) True (b) False
38. 38.True or false: two small mirrors is needed for the periscope. (a) False (b) True
39. 39.🧺 Which of these is needed for the periscope? (a) a magnet (b) an empty juice carton (c) vinegar (d) a balloon
40. 40.🔍 Which is the odd one out? (a) a rough wooden board (b) aluminium foil (c) a shiny steel plate (d) a mirror

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