Periscope STEM Project Worksheet

Science experiments lesson 28: Mirror periscope · Set 371 · 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.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) an empty juice carton (b) turmeric powder (c) sticky tape (d) a ruler
2. 2.🛟 Who should cut the holes in the juice carton? (a) the youngest child (b) nobody needs to (c) a friend who is running (d) a grown-up
3. 3.🔍 Which is the odd one out? (a) a shiny steel plate (b) a mirror (c) still clear water (d) dark soil
4. 4.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) an empty juice carton (b) yeast (c) a ruler (d) a pencil
5. 5.⚖️ 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 keep it the same (b) we measure it (c) we change it
6. 6.🔭 How many mirrors does a simple periscope use?
7. 7.⚖️ 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
8. 8.🧺 Which of these is not needed for the periscope? (a) an empty juice carton (b) a ruler (c) yeast (d) two small mirrors
9. 9.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) an empty juice carton (b) a magnet (c) sticky tape (d) a ruler
10. 10.True or false: two small mirrors is needed for the periscope. (a) True (b) False
11. 11.⚖️ 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 mirrors
12. 12.⚖️ 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 keep it the same (b) we measure it (c) we change it
13. 13.🔮 Predict: you hold a written word up to a mirror. The letters look ___. (a) in colour (b) upside down only (c) much bigger (d) flipped left to right
14. 14.True or false: black cloth reflects light well. (a) True (b) False
15. 15.🔮 Predict: you cover the top mirror with paper. What do you see? (a) a brighter view (b) two pictures (c) only darkness (d) a rainbow
16. 16.🧺 Do we need a balloon for the periscope? (a) needed (b) not needed
17. 17.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) a ruler (b) an empty juice carton (c) sticky tape (d) vinegar
18. 18.⚖️ Fair test — does the angle of the mirrors change how clearly you see? Which of these is what we measure? (a) how clear the view is (b) the same carton (c) the same light (d) the angle of the mirrors
19. 19.True or false: a ruler is not needed for the periscope. (a) False (b) True
20. 20.⚖️ 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 mirrors (d) the angle of the mirrors
21. 21.🧺 Do we need an empty juice carton for the periscope? (a) needed (b) not needed
22. 22.🔭 Why must the two mirrors face each other and be parallel? (a) so it looks shiny (b) so it can float (c) so light reaches the eye (d) to make it heavy
23. 23.🧺 Which of these is needed for the periscope? (a) turmeric powder (b) a balloon (c) sticky tape (d) vinegar
24. 24.🧺 Do we need sticky tape for the periscope? (a) needed (b) not needed
25. 25.🔭 At what angle are the mirrors set in a simple periscope? (a) 10 degrees (b) 90 degrees (c) 45 degrees (d) 180 degrees
26. 26.🔍 Which is the odd one out? (a) a mirror (b) aluminium foil (c) a rough wooden board (d) a shiny steel plate
27. 27.🔍 Which is the odd one out? (a) dark soil (b) a rough wooden board (c) a dull brick (d) a mirror
28. 28.⚖️ 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
29. 29.True or false: a pencil is needed for the periscope. (a) False (b) True
30. 30.🔭 Does a shiny steel plate reflect light well or poorly? (a) reflects light well (b) reflects light poorly
31. 31.🧺 Do we need two small mirrors for the periscope? (a) needed (b) not needed
32. 32.🔭 Does a rough wooden board reflect light well or poorly? (a) reflects light poorly (b) reflects light well
33. 33.🧺 Do we need turmeric powder for the periscope? (a) needed (b) not needed
34. 34.🔭 Who uses a periscope to look above the water? (a) a pilot in a plane (b) a baker (c) a submarine crew (d) a farmer
35. 35.🧺 Which of these is not needed for the periscope? (a) an empty juice carton (b) turmeric powder (c) sticky tape (d) two small mirrors
36. 36.🛟 You must never point a periscope or a mirror at ___. (a) a friend’s toy (b) a wall (c) a tree (d) the Sun
37. 37.True or false: a shiny steel plate reflects light well. (a) False (b) True
38. 38.🧺 Which of these is not needed for the periscope? (a) a balloon (b) two small mirrors (c) an empty juice carton (d) a ruler
39. 39.⚖️ Fair test — does the angle of the mirrors change how clearly you see? Which of these is kept the same? (a) the object we look at (b) the angle of the mirrors (c) how clear the view is
40. 40.⚖️ Fair test — does the angle of the mirrors change how clearly you see? What do we do with “the same mirrors”? (a) we change it (b) we keep it the same (c) we measure it

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