Periscope STEM Project Worksheet

Science experiments lesson 28: Mirror periscope · Set 885 · 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 an empty juice carton for the periscope? (a) not needed (b) needed
2. 2.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) an empty juice carton (b) a pencil (c) a magnet (d) sticky tape
3. 3.🔮 Predict: you cover the top mirror with paper. What do you see? (a) two pictures (b) a brighter view (c) a rainbow (d) only darkness
4. 4.True or false: a magnet is not needed for the periscope. (a) False (b) True
5. 5.⚖️ Fair test — does the angle of the mirrors change how clearly you see? Which of these is kept the same? (a) the angle of the mirrors (b) how clear the view is (c) the object we look at
6. 6.🧺 Which of these is not needed for the periscope? (a) a ruler (b) two small mirrors (c) an empty juice carton (d) a battery cell
7. 7.⚖️ 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 angle of the mirrors (c) the same carton (d) the same light
8. 8.⚖️ Fair test — does the angle of the mirrors change how clearly you see? What do we do with “the same carton”? (a) we measure it (b) we keep it the same (c) we change it
9. 9.🔭 Which of these reflects light poorly? (a) a mirror (b) aluminium foil (c) dark soil (d) still clear water
10. 10.🔭 How many mirrors does a simple periscope use?
11. 11.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) sticky tape (b) a battery cell (c) two small mirrors (d) an empty juice carton
12. 12.🔮 Predict: you make the periscope tube twice as tall. You can see over ___. (a) only short walls (b) the ground (c) taller walls (d) nothing at all
13. 13.⚖️ 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 light (c) the angle of the mirrors (d) the same mirrors
14. 14.True or false: a dull brick reflects light poorly. (a) False (b) True
15. 15.⚖️ 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) True (b) False
16. 16.🧺 Do we need vinegar for the periscope? (a) not needed (b) needed
17. 17.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) an empty juice carton (b) a pencil (c) vinegar (d) a ruler
18. 18.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) yeast (b) a pencil (c) two small mirrors (d) a ruler
19. 19.🔍 Which is the odd one out? (a) still clear water (b) a shiny steel plate (c) a dull brick (d) a mirror
20. 20.🔭 What does a periscope let you do? (a) see over a wall (b) see germs (c) hear far sounds (d) see in the dark
21. 21.🔭 Does a rough wooden board reflect light well or poorly? (a) reflects light poorly (b) reflects light well
22. 22.⚖️ Fair test — does the angle of the mirrors change how clearly you see? True or false: the same carton is what we measure. (a) True (b) False
23. 23.🔍 Which is the odd one out? (a) a shiny steel plate (b) dark soil (c) aluminium foil (d) a mirror
24. 24.True or false: a ruler is needed for the periscope. (a) True (b) False
25. 25.True or false: sticky tape is not needed for the periscope. (a) True (b) False
26. 26.True or false: black cloth reflects light well. (a) True (b) False
27. 27.🧺 Do we need a balloon for the periscope? (a) not needed (b) needed
28. 28.🔮 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
29. 29.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) an empty juice carton (b) turmeric powder (c) a pencil (d) sticky tape
30. 30.🧺 Do we need a magnet for the periscope? (a) needed (b) not needed
31. 31.True or false: aluminium foil reflects light well. (a) False (b) True
32. 32.🔭 Which of these reflects light poorly? (a) a mirror (b) still clear water (c) aluminium foil (d) a dull brick
33. 33.🧺 Do we need a ruler for the periscope? (a) not needed (b) needed
34. 34.🧺 Which of these is needed for the periscope? (a) a balloon (b) a magnet (c) two small mirrors (d) yeast
35. 35.🛟 Which mirrors are safest for a children’s periscope? (a) big wall mirrors (b) plastic safety mirrors (c) broken glass bits (d) loose glass panes
36. 36.🧺 Which of these is not needed for the periscope? (a) two small mirrors (b) a ruler (c) turmeric powder (d) a pencil
37. 37.🧺 Do we need a battery cell 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 object we look at is kept the same. (a) True (b) False
39. 39.⚖️ 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
40. 40.True or false: a rough wooden board reflects light poorly. (a) False (b) True

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