Periscope STEM Project Worksheet

Science experiments lesson 28: Mirror periscope · Set 374 · 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.True or false: two small mirrors is needed for the periscope. (a) False (b) True
2. 2.🧺 Do we need an empty juice carton for the periscope? (a) not needed (b) needed
3. 3.⚖️ 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 mirrors (b) the object we look at (c) the same light (d) the angle of the mirrors
4. 4.🧺 Which of these is needed for the periscope? (a) a balloon (b) vinegar (c) turmeric powder (d) two small mirrors
5. 5.🧺 Do we need a pencil for the periscope? (a) needed (b) not needed
6. 6.🔭 Which of these reflects light poorly? (a) black cloth (b) a mirror (c) a shiny steel plate (d) still clear water
7. 7.⚖️ 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 angle of the mirrors (c) the same light (d) the object we look at
8. 8.🔭 Does aluminium foil reflect light well or poorly? (a) reflects light poorly (b) reflects light well
9. 9.🛟 Who should cut the holes in the juice carton? (a) nobody needs to (b) a grown-up (c) a friend who is running (d) the youngest child
10. 10.🧺 Which of these is not needed for the periscope? (a) a ruler (b) sticky tape (c) an empty juice carton (d) a magnet
11. 11.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) a pencil (b) vinegar (c) a ruler (d) an empty juice carton
12. 12.🔭 Why must the two mirrors face each other and be parallel? (a) so it looks shiny (b) to make it heavy (c) so it can float (d) so light reaches the eye
13. 13.⚖️ 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 change it (c) we keep it the same
14. 14.🧺 Do we need sticky tape for the periscope? (a) not needed (b) needed
15. 15.🔭 Which of these reflects light well? (a) black cloth (b) a mirror (c) dark soil (d) a rough wooden board
16. 16.🔭 Which of these reflects light poorly? (a) still clear water (b) a dull brick (c) a mirror (d) aluminium foil
17. 17.⚖️ 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
18. 18.🛟 Which mirrors are safest for a children’s periscope? (a) plastic safety mirrors (b) loose glass panes (c) broken glass bits (d) big wall mirrors
19. 19.🧺 Which of these is not needed for the periscope? (a) two small mirrors (b) a ruler (c) sticky tape (d) a battery cell
20. 20.🔭 Which of these reflects light poorly? (a) a shiny steel plate (b) dark soil (c) still clear water (d) a mirror
21. 21.🔭 Does a rough wooden board reflect light well or poorly? (a) reflects light well (b) reflects light poorly
22. 22.🧺 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
23. 23.🔮 Predict: you cover the top mirror with paper. What do you see? (a) a brighter view (b) a rainbow (c) only darkness (d) two pictures
24. 24.True or false: sticky tape is needed for the periscope. (a) False (b) True
25. 25.True or false: turmeric powder is not needed for the periscope. (a) True (b) False
26. 26.True or false: a magnet is needed for the periscope. (a) False (b) True
27. 27.🧺 Which of these is not needed for the periscope? (a) a balloon (b) a ruler (c) sticky tape (d) an empty juice carton
28. 28.True or false: aluminium foil reflects light well. (a) False (b) True
29. 29.True or false: still clear water reflects light well. (a) False (b) True
30. 30.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) a pencil (b) a balloon (c) sticky tape (d) an empty juice carton
31. 31.🔭 What does a periscope let you do? (a) hear far sounds (b) see in the dark (c) see germs (d) see over a wall
32. 32.⚖️ Fair test — does the angle of the mirrors change how clearly you see? Which of these is kept the same? (a) the same mirrors (b) how clear the view is (c) the angle of the mirrors
33. 33.🔍 Which is the odd one out? (a) a shiny steel plate (b) still clear water (c) black cloth (d) aluminium foil
34. 34.🔍 Which is the odd one out? (a) still clear water (b) dark soil (c) a mirror (d) a shiny steel plate
35. 35.🔮 Predict: you hold a written word up to a mirror. The letters look ___. (a) much bigger (b) upside down only (c) in colour (d) flipped left to right
36. 36.🧺 Do we need a battery cell for the periscope? (a) needed (b) not needed
37. 37.🧺 Do we need a magnet for the periscope? (a) needed (b) not needed
38. 38.True or false: a shiny steel plate reflects light well. (a) False (b) True
39. 39.🔭 Which of these reflects light well? (a) a rough wooden board (b) aluminium foil (c) dark soil (d) black cloth
40. 40.🔭 At what angle are the mirrors set in a simple periscope? (a) 45 degrees (b) 90 degrees (c) 10 degrees (d) 180 degrees

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