Periscope STEM Project Worksheet

Science experiments lesson 28: Mirror periscope · Set 169 · 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) an empty juice carton (b) a pencil (c) a magnet (d) two small mirrors
2. 2.🧺 Which of these is not needed for the periscope? (a) sticky tape (b) a ruler (c) a battery cell (d) a pencil
3. 3.🔭 Which of these reflects light well? (a) a shiny steel plate (b) dark soil (c) a rough wooden board (d) a dull brick
4. 4.🔭 Does a rough wooden board reflect light well or poorly? (a) reflects light poorly (b) reflects light well
5. 5.⚖️ Fair test — does the angle of the mirrors change how clearly you see? What do we do with “the object we look at”? (a) we measure it (b) we keep it the same (c) we change it
6. 6.🧺 Which of these is needed for the periscope? (a) a magnet (b) a battery cell (c) yeast (d) a pencil
7. 7.True or false: a dull brick reflects light well. (a) True (b) False
8. 8.🧺 Which of these is needed for the periscope? (a) a magnet (b) a battery cell (c) sticky tape (d) a balloon
9. 9.🔭 Which of these reflects light poorly? (a) aluminium foil (b) dark soil (c) still clear water (d) a shiny steel plate
10. 10.🔍 Which is the odd one out? (a) a mirror (b) a shiny steel plate (c) a dull brick (d) aluminium foil
11. 11.🔮 Predict: you make the periscope tube twice as tall. You can see over ___. (a) taller walls (b) only short walls (c) the ground (d) nothing at all
12. 12.🔭 How many mirrors does a simple periscope use?
13. 13.True or false: vinegar is not needed for the periscope. (a) False (b) True
14. 14.⚖️ Fair test — does the angle of the mirrors change how clearly you see? True or false: how clear the view is is the one thing we change. (a) False (b) True
15. 15.🧺 Which of these is not needed for the periscope? (a) sticky tape (b) a ruler (c) an empty juice carton (d) a balloon
16. 16.🔭 What does a periscope let you do? (a) see germs (b) see over a wall (c) hear far sounds (d) see in the dark
17. 17.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) sticky tape (b) two small mirrors (c) a pencil (d) a battery cell
18. 18.🔭 At what angle are the mirrors set in a simple periscope? (a) 180 degrees (b) 90 degrees (c) 45 degrees (d) 10 degrees
19. 19.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) a magnet (b) sticky tape (c) a ruler (d) two small mirrors
20. 20.🔮 Predict: you hold a written word up to a mirror. The letters look ___. (a) in colour (b) upside down only (c) flipped left to right (d) much bigger
21. 21.True or false: two small mirrors is not needed for the periscope. (a) False (b) True
22. 22.⚖️ 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
23. 23.🛟 You must never point a periscope or a mirror at ___. (a) a friend’s toy (b) the Sun (c) a wall (d) a tree
24. 24.True or false: turmeric powder is needed for the periscope. (a) False (b) True
25. 25.🔍 Which is the odd one out? (a) a rough wooden board (b) a dull brick (c) black cloth (d) a mirror
26. 26.True or false: still clear water reflects light poorly. (a) True (b) False
27. 27.⚖️ 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
28. 28.True or false: an empty juice carton is not needed for the periscope. (a) True (b) False
29. 29.True or false: a rough wooden board reflects light well. (a) True (b) False
30. 30.True or false: aluminium foil reflects light well. (a) False (b) True
31. 31.🔭 Does a shiny steel plate reflect light well or poorly? (a) reflects light well (b) reflects light poorly
32. 32.🧺 Which of these is not needed for the periscope? (a) two small mirrors (b) yeast (c) a ruler (d) sticky tape
33. 33.True or false: a ruler is needed for the periscope. (a) False (b) True
34. 34.🔭 Does aluminium foil reflect light well or poorly? (a) reflects light well (b) reflects light poorly
35. 35.⚖️ Fair test — does the angle of the mirrors change how clearly you see? True or false: the angle of the mirrors is what we measure. (a) False (b) True
36. 36.⚖️ Fair test — does the angle of the mirrors change how clearly you see? What do we do with “the same mirrors”? (a) we measure it (b) we keep it the same (c) we change it
37. 37.True or false: a shiny steel plate reflects light well. (a) True (b) False
38. 38.🧺 Do we need two small mirrors for the periscope? (a) not needed (b) needed
39. 39.⚖️ 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
40. 40.⚖️ 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 light (b) how clear the view is (c) the same carton (d) the angle of the mirrors

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