Periscope STEM Project Worksheet

Science experiments lesson 28: Mirror periscope · Set 330 · 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.🔮 Predict: you make the periscope tube twice as tall. You can see over ___. (a) nothing at all (b) the ground (c) taller walls (d) only short walls
2. 2.🛟 Who should cut the holes in the juice carton? (a) a friend who is running (b) nobody needs to (c) the youngest child (d) a grown-up
3. 3.🧺 Do we need a ruler for the periscope? (a) needed (b) not needed
4. 4.🔍 Which is the odd one out? (a) still clear water (b) aluminium foil (c) a shiny steel plate (d) a dull brick
5. 5.🧺 Do we need two small mirrors for the periscope? (a) not needed (b) needed
6. 6.🔭 Which of these reflects light poorly? (a) dark soil (b) a shiny steel plate (c) aluminium foil (d) a mirror
7. 7.🔍 Which is the odd one out? (a) a rough wooden board (b) a dull brick (c) a mirror (d) black cloth
8. 8.True or false: aluminium foil reflects light poorly. (a) False (b) True
9. 9.True or false: an empty juice carton is needed for the periscope. (a) True (b) False
10. 10.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) two small mirrors (b) vinegar (c) an empty juice carton (d) sticky tape
11. 11.True or false: vinegar is needed for the periscope. (a) False (b) True
12. 12.⚖️ 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
13. 13.⚖️ 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 object we look at (d) the angle of the mirrors
14. 14.True or false: a ruler is not needed for the periscope. (a) True (b) False
15. 15.🔭 Does a shiny steel plate reflect light well or poorly? (a) reflects light well (b) reflects light poorly
16. 16.🧺 Which of these is needed for the periscope? (a) a battery cell (b) sticky tape (c) a magnet (d) yeast
17. 17.🔭 How many times does light bounce off a mirror in a simple periscope?
18. 18.🔭 Who uses a periscope to look above the water? (a) a pilot in a plane (b) a farmer (c) a submarine crew (d) a baker
19. 19.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) two small mirrors (b) a balloon (c) sticky tape (d) a ruler
20. 20.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) two small mirrors (b) sticky tape (c) a magnet (d) a pencil
21. 21.True or false: still clear water reflects light poorly. (a) False (b) True
22. 22.🔭 Does a mirror reflect light well or poorly? (a) reflects light poorly (b) reflects light well
23. 23.🧺 Do we need a balloon for the periscope? (a) needed (b) not needed
24. 24.⚖️ 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
25. 25.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) a ruler (b) an empty juice carton (c) a pencil (d) a battery cell
26. 26.🧺 Which of these is needed for the periscope? (a) turmeric powder (b) a balloon (c) a battery cell (d) an empty juice carton
27. 27.⚖️ 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
28. 28.True or false: still clear water reflects light well. (a) False (b) True
29. 29.True or false: aluminium foil reflects light well. (a) True (b) False
30. 30.True or false: a shiny steel plate reflects light well. (a) False (b) True
31. 31.⚖️ 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
32. 32.🧺 Which of these is needed for the periscope? (a) a ruler (b) a balloon (c) a battery cell (d) yeast
33. 33.🔭 What does a periscope let you do? (a) see in the dark (b) see over a wall (c) see germs (d) hear far sounds
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 mirrors (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 angle of the mirrors”? (a) we keep it the same (b) we measure it (c) we change it
36. 36.🔭 Which of these reflects light well? (a) still clear water (b) a dull brick (c) dark soil (d) black cloth
37. 37.🛟 Which mirrors are safest for a children’s periscope? (a) plastic safety mirrors (b) loose glass panes (c) broken glass bits (d) big wall mirrors
38. 38.⚖️ Fair test — does the angle of the mirrors change how clearly you see? Which of these is what we measure? (a) the same light (b) how clear the view is (c) the angle of the mirrors (d) the object we look at
39. 39.True or false: a mirror reflects light poorly. (a) True (b) False
40. 40.🧺 Do we need an empty juice carton for the periscope? (a) not needed (b) needed

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