Periscope STEM Project Worksheet

Science experiments lesson 28: Mirror periscope · Set 659 · 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.🧺 Which of these is not needed for the periscope? (a) vinegar (b) sticky tape (c) a ruler (d) a pencil
2. 2.True or false: a magnet is needed for the periscope. (a) True (b) False
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 same carton (c) the angle of the mirrors (d) the object we look at
4. 4.True or false: a pencil is needed for the periscope. (a) True (b) False
5. 5.🧺 Which of these is needed for the periscope? (a) a battery cell (b) a balloon (c) an empty juice carton (d) a magnet
6. 6.🔍 Which is the odd one out? (a) aluminium foil (b) a shiny steel plate (c) still clear water (d) dark soil
7. 7.🧺 Which of these is not needed for the periscope? (a) sticky tape (b) a ruler (c) yeast (d) two small mirrors
8. 8.🔭 Does a shiny steel plate reflect light well or poorly? (a) reflects light well (b) reflects light poorly
9. 9.🔭 Does a dull brick reflect light well or poorly? (a) reflects light poorly (b) reflects light well
10. 10.🔮 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
11. 11.🛟 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
12. 12.⚖️ 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) True (b) False
13. 13.🔮 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
14. 14.True or false: a balloon is needed for the periscope. (a) True (b) False
15. 15.⚖️ 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
16. 16.True or false: sticky tape is needed for the periscope. (a) False (b) True
17. 17.True or false: still clear water reflects light well. (a) False (b) True
18. 18.True or false: vinegar is needed for the periscope. (a) False (b) True
19. 19.🔭 Does a mirror reflect light well or poorly? (a) reflects light well (b) reflects light poorly
20. 20.🧺 Do we need a magnet for the periscope? (a) needed (b) not needed
21. 21.🔭 What does a periscope let you do? (a) hear far sounds (b) see germs (c) see over a wall (d) see in the dark
22. 22.⚖️ 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
23. 23.🔮 Predict: you make the periscope tube twice as tall. You can see over ___. (a) nothing at all (b) the ground (c) only short walls (d) taller walls
24. 24.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) a ruler (b) an empty juice carton (c) a magnet (d) two small mirrors
25. 25.🔍 Which is the odd one out? (a) a rough wooden board (b) a mirror (c) black cloth (d) dark soil
26. 26.⚖️ 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
27. 27.📘 Light bouncing off a mirror is called ___. (a) magnetism (b) evaporation (c) refraction (d) reflection
28. 28.🧺 Which of these is needed for the periscope? (a) a balloon (b) a ruler (c) turmeric powder (d) a magnet
29. 29.True or false: a dull brick reflects light well. (a) True (b) False
30. 30.🔭 Does black cloth reflect light well or poorly? (a) reflects light poorly (b) reflects light well
31. 31.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) a pencil (b) sticky tape (c) turmeric powder (d) two small mirrors
32. 32.🔭 Which of these reflects light well? (a) a dull brick (b) black cloth (c) still clear water (d) a rough wooden board
33. 33.🔍 Which is the odd one out? (a) aluminium foil (b) a shiny steel plate (c) still clear water (d) black cloth
34. 34.🔍 Which is the odd one out? (a) dark soil (b) a dull brick (c) a shiny steel plate (d) black cloth
35. 35.🛟 Who should cut the holes in the juice carton? (a) a friend who is running (b) the youngest child (c) nobody needs to (d) a grown-up
36. 36.True or false: a balloon is not needed for the periscope. (a) False (b) True
37. 37.🔭 Which of these reflects light well? (a) dark soil (b) a dull brick (c) a mirror (d) a rough wooden board
38. 38.True or false: an empty juice carton is needed for the periscope. (a) False (b) True
39. 39.🔍 Which is the odd one out? (a) a shiny steel plate (b) a mirror (c) a dull brick (d) aluminium foil
40. 40.🧺 Which of these is needed for the periscope? (a) a battery cell (b) turmeric powder (c) a pencil (d) a balloon

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