Periscope STEM Project Worksheet

Science experiments lesson 28: Mirror periscope · Set 855 · 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 cover the top mirror with paper. What do you see? (a) a brighter view (b) two pictures (c) a rainbow (d) only darkness
2. 2.🔭 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
3. 3.🧺 Do we need yeast for the periscope? (a) needed (b) not needed
4. 4.True or false: aluminium foil reflects light well. (a) False (b) True
5. 5.True or false: sticky tape is not needed for the periscope. (a) False (b) True
6. 6.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) sticky tape (b) turmeric powder (c) two small mirrors (d) an empty juice carton
7. 7.🔭 Why must the two mirrors face each other and be parallel? (a) so light reaches the eye (b) so it looks shiny (c) to make it heavy (d) so it can float
8. 8.🔭 Which of these reflects light well? (a) dark soil (b) a rough wooden board (c) a dull brick (d) aluminium foil
9. 9.🔭 Does still clear water reflect light well or poorly? (a) reflects light poorly (b) reflects light well
10. 10.🧺 Do we need vinegar for the periscope? (a) needed (b) not needed
11. 11.🔭 Does a mirror reflect light well or poorly? (a) reflects light well (b) reflects light poorly
12. 12.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) a ruler (b) an empty juice carton (c) two small mirrors (d) a balloon
13. 13.⚖️ 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
14. 14.⚖️ 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) False (b) True
15. 15.🧺 Do we need sticky tape for the periscope? (a) needed (b) not needed
16. 16.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) a ruler (b) vinegar (c) a pencil (d) two small mirrors
17. 17.🔭 How many times does light bounce off a mirror in a simple periscope?
18. 18.⚖️ 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) the same mirrors (c) the angle of the mirrors (d) how clear the view is
19. 19.🧺 Which of these is not needed for the periscope? (a) a pencil (b) an empty juice carton (c) vinegar (d) two small mirrors
20. 20.🧺 Do we need a pencil for the periscope? (a) needed (b) not needed
21. 21.🔍 Which is the odd one out? (a) a rough wooden board (b) dark soil (c) a dull brick (d) a shiny steel plate
22. 22.🔭 How many mirrors does a simple periscope use?
23. 23.⚖️ 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 measure it (b) we keep it the same (c) we change it
24. 24.🔍 Which is the odd one out? (a) a rough wooden board (b) a dull brick (c) black cloth (d) a mirror
25. 25.🔍 Which is the odd one out? (a) still clear water (b) aluminium foil (c) a mirror (d) a rough wooden board
26. 26.🔍 Which is the odd one out? (a) a mirror (b) dark soil (c) still clear water (d) aluminium foil
27. 27.🧺 Which of these is not needed for the periscope? (a) an empty juice carton (b) sticky tape (c) a pencil (d) a magnet
28. 28.True or false: a dull brick reflects light well. (a) True (b) False
29. 29.🔭 Which of these reflects light well? (a) black cloth (b) a rough wooden board (c) dark soil (d) still clear water
30. 30.🛟 Which mirrors are safest for a children’s periscope? (a) plastic safety mirrors (b) big wall mirrors (c) broken glass bits (d) loose glass panes
31. 31.⚖️ Fair test — does the angle of the mirrors change how clearly you see? What do we do with “the same light”? (a) we keep it the same (b) we change it (c) we measure it
32. 32.🔭 Which of these reflects light poorly? (a) black cloth (b) aluminium foil (c) a mirror (d) still clear water
33. 33.🔍 Which is the odd one out? (a) still clear water (b) aluminium foil (c) black cloth (d) a shiny steel plate
34. 34.🔭 Does a rough wooden board reflect light well or poorly? (a) reflects light poorly (b) reflects light well
35. 35.🧺 Which of these is not needed for the periscope? (a) a ruler (b) sticky tape (c) an empty juice carton (d) yeast
36. 36.True or false: a mirror reflects light well. (a) False (b) True
37. 37.True or false: a ruler is not needed for the periscope. (a) True (b) False
38. 38.🛟 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
39. 39.🔮 Predict: you hold a written word up to a mirror. The letters look ___. (a) in colour (b) upside down only (c) flipped left to right (d) much bigger
40. 40.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) an empty juice carton (b) a ruler (c) a magnet (d) a pencil

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