Periscope STEM Project Worksheet

Science experiments lesson 28: Mirror periscope · Set 222 · 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 balloon for the periscope? (a) needed (b) not needed
2. 2.🧺 Do we need sticky tape for the periscope? (a) not needed (b) needed
3. 3.⚖️ 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
4. 4.⚖️ 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 object we look at
5. 5.🔮 Predict: you make the periscope tube twice as tall. You can see over ___. (a) the ground (b) taller walls (c) nothing at all (d) only short walls
6. 6.🔭 Why must the two mirrors face each other and be parallel? (a) so it can float (b) to make it heavy (c) so light reaches the eye (d) so it looks shiny
7. 7.🔍 Which is the odd one out? (a) dark soil (b) a dull brick (c) a rough wooden board (d) a mirror
8. 8.🔍 Which is the odd one out? (a) black cloth (b) a shiny steel plate (c) a rough wooden board (d) a dull brick
9. 9.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) a ruler (b) an empty juice carton (c) two small mirrors (d) a balloon
10. 10.🔭 At what angle are the mirrors set in a simple periscope? (a) 45 degrees (b) 90 degrees (c) 180 degrees (d) 10 degrees
11. 11.🛟 Which mirrors are safest for a children’s periscope? (a) broken glass bits (b) big wall mirrors (c) loose glass panes (d) plastic safety mirrors
12. 12.🔭 How many mirrors does a simple periscope use?
13. 13.🔭 Does aluminium foil reflect light well or poorly? (a) reflects light poorly (b) reflects light well
14. 14.⚖️ 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
15. 15.🧺 Which of these is not needed for the periscope? (a) an empty juice carton (b) two small mirrors (c) vinegar (d) sticky tape
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 change it (b) we keep it the same (c) we measure it
17. 17.🔮 Predict: you cover the top mirror with paper. What do you see? (a) only darkness (b) a brighter view (c) a rainbow (d) two pictures
18. 18.🔭 Which of these reflects light well? (a) a rough wooden board (b) a mirror (c) a dull brick (d) black cloth
19. 19.🧺 Do we need an empty juice carton for the periscope? (a) needed (b) not needed
20. 20.True or false: a pencil is not needed for the periscope. (a) True (b) False
21. 21.🔭 Who uses a periscope to look above the water? (a) a submarine crew (b) a baker (c) a farmer (d) a pilot in a plane
22. 22.🔭 Does a dull brick reflect light well or poorly? (a) reflects light well (b) reflects light poorly
23. 23.True or false: a shiny steel plate reflects light well. (a) True (b) False
24. 24.⚖️ 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 carton (c) the angle of the mirrors (d) the object we look at
25. 25.🔭 Which of these reflects light poorly? (a) black cloth (b) still clear water (c) a mirror (d) a shiny steel plate
26. 26.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) a magnet (b) an empty juice carton (c) a ruler (d) a pencil
27. 27.🧺 Which of these is needed for the periscope? (a) a magnet (b) sticky tape (c) turmeric powder (d) a balloon
28. 28.🛟 Who should cut the holes in the juice carton? (a) a grown-up (b) the youngest child (c) nobody needs to (d) a friend who is running
29. 29.🧺 Which of these is not needed for the periscope? (a) a magnet (b) a ruler (c) two small mirrors (d) an empty juice carton
30. 30.True or false: a balloon is not needed for the periscope. (a) True (b) False
31. 31.🧺 Do we need a pencil for the periscope? (a) not needed (b) needed
32. 32.True or false: a ruler is needed for the periscope. (a) True (b) False
33. 33.🧺 Do we need turmeric powder for the periscope? (a) needed (b) not needed
34. 34.⚖️ 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) the same light (c) how clear the view is
35. 35.⚖️ 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 measure it (c) we keep it the same
36. 36.⚖️ 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
37. 37.⚖️ 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) True (b) False
38. 38.🔍 Which is the odd one out? (a) a mirror (b) aluminium foil (c) a shiny steel plate (d) black cloth
39. 39.🔭 Which of these reflects light well? (a) black cloth (b) aluminium foil (c) a rough wooden board (d) dark soil
40. 40.🧺 Which of these is not needed for the periscope? (a) a ruler (b) turmeric powder (c) sticky tape (d) an empty juice carton

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