Periscope STEM Project Worksheet

Science experiments lesson 28: Mirror periscope · Set 276 · 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 rough wooden board reflect light well or poorly? (a) reflects light well (b) reflects light poorly
2. 2.True or false: still clear water reflects light poorly. (a) False (b) True
3. 3.🔭 Who uses a periscope to look above the water? (a) a baker (b) a pilot in a plane (c) a submarine crew (d) a farmer
4. 4.⚖️ 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 change it (b) we measure it (c) we keep it the same
5. 5.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) an empty juice carton (b) a pencil (c) a balloon (d) sticky tape
6. 6.⚖️ 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) True (b) False
7. 7.🛟 Who should cut the holes in the juice carton? (a) the youngest child (b) a friend who is running (c) nobody needs to (d) a grown-up
8. 8.⚖️ Fair test — does the angle of the mirrors change how clearly you see? True or false: the same carton is kept the same. (a) False (b) True
9. 9.🛟 Which mirrors are safest for a children’s periscope? (a) big wall mirrors (b) plastic safety mirrors (c) loose glass panes (d) broken glass bits
10. 10.⚖️ 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
11. 11.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) an empty juice carton (b) two small mirrors (c) yeast (d) a pencil
12. 12.⚖️ 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
13. 13.⚖️ 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 carton
14. 14.🔭 Which of these reflects light well? (a) a dull brick (b) still clear water (c) a rough wooden board (d) dark soil
15. 15.⚖️ Fair test — does the angle of the mirrors change how clearly you see? True or false: the same mirrors is what we measure. (a) False (b) True
16. 16.🔮 Predict: you hold a written word up to a mirror. The letters look ___. (a) flipped left to right (b) in colour (c) much bigger (d) upside down only
17. 17.⚖️ 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 change it (c) we keep it the same
18. 18.True or false: an empty juice carton is needed for the periscope. (a) False (b) True
19. 19.⚖️ 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
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.🧺 Which of these is not needed for the periscope? (a) an empty juice carton (b) vinegar (c) a pencil (d) sticky tape
22. 22.🔭 Why must the two mirrors face each other and be parallel? (a) to make it heavy (b) so it looks shiny (c) so it can float (d) so light reaches the eye
23. 23.⚖️ Fair test — does the angle of the mirrors change how clearly you see? Which of these is the one thing we change? (a) the object we look at (b) the angle of the mirrors (c) the same mirrors (d) the same light
24. 24.True or false: a shiny steel plate reflects light well. (a) False (b) True
25. 25.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) a magnet (b) a ruler (c) sticky tape (d) a pencil
26. 26.⚖️ 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) False (b) True
27. 27.🔭 Which of these reflects light poorly? (a) still clear water (b) a mirror (c) aluminium foil (d) a dull brick
28. 28.🔮 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
29. 29.🔭 Does aluminium foil reflect light well or poorly? (a) reflects light poorly (b) reflects light well
30. 30.True or false: black cloth reflects light well. (a) True (b) False
31. 31.🔭 Does a mirror reflect light well or poorly? (a) reflects light well (b) reflects light poorly
32. 32.🔭 How many mirrors does a simple periscope use?
33. 33.🧺 Do we need a balloon for the periscope? (a) not needed (b) needed
34. 34.🧺 Do we need an empty juice carton for the periscope? (a) not needed (b) needed
35. 35.🧺 Which of these is not needed for the periscope? (a) turmeric powder (b) a ruler (c) an empty juice carton (d) two small mirrors
36. 36.🔍 Which is the odd one out? (a) a dull brick (b) a mirror (c) a shiny steel plate (d) aluminium foil
37. 37.🛟 You must never point a periscope or a mirror at ___. (a) a wall (b) the Sun (c) a tree (d) a friend’s toy
38. 38.⚖️ Fair test — does the angle of the mirrors change how clearly you see? What do we do with “the same carton”? (a) we keep it the same (b) we measure it (c) we change it
39. 39.🔍 Which is the odd one out? (a) black cloth (b) still clear water (c) a mirror (d) a shiny steel plate
40. 40.True or false: a shiny steel plate reflects light poorly. (a) True (b) False

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