Periscope STEM Project Worksheet

Science experiments lesson 28: Mirror periscope · Set 781 · 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.🔭 Does a mirror reflect light well or poorly? (a) reflects light poorly (b) reflects light well
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.True or false: a ruler is not needed for the periscope. (a) False (b) True
5. 5.⚖️ 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 angle of the mirrors (c) the same mirrors (d) how clear the view is
6. 6.⚖️ Fair test — does the angle of the mirrors change how clearly you see? True or false: the angle of the mirrors is kept the same. (a) False (b) True
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 keep it the same (b) we measure it (c) we change it
8. 8.🔍 Which is the odd one out? (a) a dull brick (b) dark soil (c) black cloth (d) a mirror
9. 9.🔭 Does aluminium foil reflect light well or poorly? (a) reflects light well (b) reflects light poorly
10. 10.🔭 Does a rough wooden board 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 what we measure? (a) the same mirrors (b) the angle of the mirrors (c) how clear the view is (d) the object we look at
12. 12.🔍 Which is the odd one out? (a) still clear water (b) a shiny steel plate (c) dark soil (d) a mirror
13. 13.🧺 Do we need a battery cell for the periscope? (a) needed (b) not needed
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.True or false: a ruler is needed for the periscope. (a) False (b) True
16. 16.⚖️ 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
17. 17.🛟 You must never point a periscope or a mirror at ___. (a) the Sun (b) a friend’s toy (c) a wall (d) a tree
18. 18.🧺 Do we need a magnet for the periscope? (a) needed (b) not needed
19. 19.🧺 Do we need two small mirrors for the periscope? (a) not needed (b) needed
20. 20.🧺 Which of these is needed for the periscope? (a) a battery cell (b) a magnet (c) a pencil (d) turmeric powder
21. 21.🔭 Which of these reflects light poorly? (a) aluminium foil (b) a mirror (c) black cloth (d) still clear water
22. 22.⚖️ Fair test — does the angle of the mirrors change how clearly you see? What do we do with “the same carton”? (a) we measure it (b) we keep it the same (c) we change it
23. 23.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) a pencil (b) a balloon (c) sticky tape (d) two small mirrors
24. 24.🔭 At what angle are the mirrors set in a simple periscope? (a) 10 degrees (b) 180 degrees (c) 90 degrees (d) 45 degrees
25. 25.🔭 Does still clear water reflect light well or poorly? (a) reflects light well (b) reflects light poorly
26. 26.🧺 Do we need a ruler for the periscope? (a) needed (b) not needed
27. 27.🔭 Who uses a periscope to look above the water? (a) a farmer (b) a pilot in a plane (c) a submarine crew (d) a baker
28. 28.🧺 Which of these is not needed for the periscope? (a) a battery cell (b) a pencil (c) sticky tape (d) an empty juice carton
29. 29.🔭 How many mirrors does a simple periscope use?
30. 30.🧺 Which of these is needed for the periscope? (a) vinegar (b) a battery cell (c) a balloon (d) two small mirrors
31. 31.🔭 What does a periscope let you do? (a) hear far sounds (b) see in the dark (c) see germs (d) see over a wall
32. 32.🔭 Which of these reflects light well? (a) a dull brick (b) dark soil (c) a rough wooden board (d) still clear water
33. 33.True or false: sticky tape is needed for the periscope. (a) False (b) True
34. 34.True or false: a shiny steel plate reflects light poorly. (a) True (b) False
35. 35.True or false: a magnet is not needed for the periscope. (a) True (b) False
36. 36.🧺 Which of these is not needed for the periscope? (a) two small mirrors (b) an empty juice carton (c) sticky tape (d) yeast
37. 37.True or false: a mirror reflects light poorly. (a) False (b) True
38. 38.🔮 Predict: you make the periscope tube twice as tall. You can see over ___. (a) the ground (b) nothing at all (c) taller walls (d) only short walls
39. 39.🔍 Which is the odd one out? (a) a mirror (b) a shiny steel plate (c) a rough wooden board (d) still clear water
40. 40.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) a ruler (b) two small mirrors (c) a pencil (d) a battery cell

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