Periscope STEM Project Worksheet

Science experiments lesson 28: Mirror periscope · Set 692 · 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.🧺 Do we need a ruler for the periscope? (a) not needed (b) needed
2. 2.🧺 Do we need vinegar for the periscope? (a) not needed (b) needed
3. 3.🛟 Which mirrors are safest for a children’s periscope? (a) broken glass bits (b) big wall mirrors (c) loose glass panes (d) plastic safety mirrors
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 measure it (b) we keep it the same (c) we change it
5. 5.🧺 Which of these is needed for the periscope? (a) a pencil (b) yeast (c) turmeric powder (d) a magnet
6. 6.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) two small mirrors (b) a pencil (c) an empty juice carton (d) yeast
7. 7.🔭 Which of these reflects light well? (a) aluminium foil (b) dark soil (c) black cloth (d) a dull brick
8. 8.🔭 Does a mirror reflect light well or poorly? (a) reflects light well (b) reflects light poorly
9. 9.True or false: a magnet is not needed for the periscope. (a) True (b) False
10. 10.⚖️ 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 carton (b) the object we look at (c) the same mirrors (d) the angle of the mirrors
11. 11.⚖️ 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 keep it the same (c) we change it
12. 12.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) an empty juice carton (b) two small mirrors (c) a ruler (d) a magnet
13. 13.🧺 Do we need yeast for the periscope? (a) not needed (b) needed
14. 14.🔍 Which is the odd one out? (a) black cloth (b) a dull brick (c) a rough wooden board (d) aluminium foil
15. 15.🧺 Which of these is not needed for the periscope? (a) sticky tape (b) a ruler (c) turmeric powder (d) an empty juice carton
16. 16.🔭 Does a rough wooden board reflect light well or poorly? (a) reflects light well (b) reflects light poorly
17. 17.⚖️ Fair test — does the angle of the mirrors change how clearly you see? True or false: the same mirrors is kept the same. (a) False (b) True
18. 18.🧺 Do we need an empty juice carton for the periscope? (a) not needed (b) needed
19. 19.True or false: a shiny steel plate reflects light poorly. (a) True (b) False
20. 20.⚖️ Fair test — does the angle of the mirrors change how clearly you see? True or false: the object we look at is the one thing we change. (a) False (b) True
21. 21.🔍 Which is the odd one out? (a) still clear water (b) a shiny steel plate (c) black cloth (d) a mirror
22. 22.True or false: dark soil reflects light well. (a) True (b) False
23. 23.🔭 How many mirrors does a simple periscope use?
24. 24.True or false: still clear water reflects light poorly. (a) False (b) True
25. 25.True or false: a dull brick reflects light well. (a) True (b) False
26. 26.🔭 Why must the two mirrors face each other and be parallel? (a) so light reaches the eye (b) to make it heavy (c) so it can float (d) so it looks shiny
27. 27.🔭 At what angle are the mirrors set in a simple periscope? (a) 10 degrees (b) 180 degrees (c) 45 degrees (d) 90 degrees
28. 28.True or false: a rough wooden board reflects light poorly. (a) True (b) False
29. 29.🔭 Does aluminium foil reflect light well or poorly? (a) reflects light poorly (b) reflects light well
30. 30.🔭 Does still clear water reflect light well or poorly? (a) reflects light well (b) reflects light poorly
31. 31.🔮 Predict: you cover the top mirror with paper. What do you see? (a) two pictures (b) only darkness (c) a brighter view (d) a rainbow
32. 32.🧺 Which of these is needed for the periscope? (a) a magnet (b) a battery cell (c) vinegar (d) a ruler
33. 33.True or false: two small mirrors is not needed for the periscope. (a) True (b) False
34. 34.🔍 Which is the odd one out? (a) a dull brick (b) dark soil (c) still clear water (d) a rough wooden board
35. 35.⚖️ 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
36. 36.🔍 Which is the odd one out? (a) a mirror (b) still clear water (c) a rough wooden board (d) aluminium foil
37. 37.🧺 Do we need sticky tape for the periscope? (a) not needed (b) needed
38. 38.⚖️ Fair test — does the angle of the mirrors change how clearly you see? True or false: the same carton is kept the same. (a) True (b) False
39. 39.🛟 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
40. 40.🧺 Which of these is needed for the periscope? (a) a magnet (b) a battery cell (c) a balloon (d) two small mirrors

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