Periscope STEM Project Worksheet

Science experiments lesson 28: Mirror periscope · Set 314 · 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.🔭 Who uses a periscope to look above the water? (a) a submarine crew (b) a farmer (c) a baker (d) a pilot in a plane
2. 2.⚖️ Fair test — does the angle of the mirrors change how clearly you see? True or false: the same light is the one thing we change. (a) True (b) False
3. 3.True or false: an empty juice carton is needed for the periscope. (a) True (b) False
4. 4.🔭 Does still clear water reflect light well or poorly? (a) reflects light poorly (b) reflects light well
5. 5.True or false: two small mirrors is not needed for the periscope. (a) True (b) False
6. 6.⚖️ 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 same light (c) the angle of the mirrors (d) the same mirrors
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 measure it (b) we keep it the same (c) we change it
8. 8.⚖️ Fair test — does the angle of the mirrors change how clearly you see? True or false: the same light is kept the same. (a) True (b) False
9. 9.⚖️ Fair test — does the angle of the mirrors change how clearly you see? What do we do with “the same carton”? (a) we change it (b) we keep it the same (c) we measure it
10. 10.🔭 Which of these reflects light well? (a) aluminium foil (b) black cloth (c) a dull brick (d) dark soil
11. 11.True or false: a rough wooden board reflects light poorly. (a) True (b) False
12. 12.True or false: a pencil is needed for the periscope. (a) False (b) True
13. 13.🧺 Do we need a balloon for the periscope? (a) needed (b) not needed
14. 14.🧺 Do we need a ruler for the periscope? (a) not needed (b) needed
15. 15.🔭 How many times does light bounce off a mirror in a simple periscope?
16. 16.🧺 Which of these is not needed for the periscope? (a) a magnet (b) two small mirrors (c) sticky tape (d) an empty juice carton
17. 17.⚖️ Fair test — does the angle of the mirrors change how clearly you see? True or false: how clear the view is is what we measure. (a) False (b) True
18. 18.True or false: a rough wooden board reflects light well. (a) True (b) False
19. 19.🧺 Which of these is not needed for the periscope? (a) a balloon (b) sticky tape (c) a pencil (d) a ruler
20. 20.🔭 How many mirrors does a simple periscope use?
21. 21.🔍 Which is the odd one out? (a) a rough wooden board (b) aluminium foil (c) dark soil (d) black cloth
22. 22.⚖️ 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 measure it (b) we change it (c) we keep it the same
23. 23.🛟 Which mirrors are safest for a children’s periscope? (a) broken glass bits (b) big wall mirrors (c) plastic safety mirrors (d) loose glass panes
24. 24.🧺 Do we need turmeric powder for the periscope? (a) not needed (b) needed
25. 25.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) sticky tape (b) two small mirrors (c) turmeric powder (d) an empty juice carton
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.🛟 Who should cut the holes in the juice carton? (a) nobody needs to (b) the youngest child (c) a grown-up (d) a friend who is running
28. 28.🔭 Does a mirror reflect light well or poorly? (a) reflects light well (b) reflects light poorly
29. 29.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) an empty juice carton (b) a pencil (c) vinegar (d) two small mirrors
30. 30.🔍 Which is the odd one out? (a) still clear water (b) black cloth (c) a rough wooden board (d) a dull brick
31. 31.🔮 Predict: you cover the top mirror with paper. What do you see? (a) a rainbow (b) a brighter view (c) only darkness (d) two pictures
32. 32.⚖️ Fair test — does the angle of the mirrors change how clearly you see? Which of these is what we measure? (a) the angle of the mirrors (b) the same carton (c) how clear the view is (d) the same mirrors
33. 33.🧺 Do we need a pencil for the periscope? (a) needed (b) not needed
34. 34.🔭 What does a periscope let you do? (a) hear far sounds (b) see in the dark (c) see germs (d) see over a wall
35. 35.True or false: a balloon is needed for the periscope. (a) True (b) False
36. 36.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) a battery cell (b) sticky tape (c) two small mirrors (d) a pencil
37. 37.🔍 Which is the odd one out? (a) dark soil (b) a shiny steel plate (c) a dull brick (d) black cloth
38. 38.True or false: a pencil is not needed for the periscope. (a) True (b) False
39. 39.🔭 Which of these reflects light poorly? (a) still clear water (b) a shiny steel plate (c) a mirror (d) dark soil
40. 40.⚖️ Fair test — does the angle of the mirrors change how clearly you see? True or false: how clear the view is is kept the same. (a) False (b) True

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