Periscope STEM Project Worksheet

Science experiments lesson 28: Mirror periscope · Set 475 · 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: sticky tape is not needed for the periscope. (a) True (b) False
2. 2.🔍 Which is the odd one out? (a) black cloth (b) dark soil (c) a rough wooden board (d) still clear water
3. 3.🔭 Which of these reflects light poorly? (a) a shiny steel plate (b) aluminium foil (c) a mirror (d) dark soil
4. 4.⚖️ Fair test — does the angle of the mirrors change how clearly you see? True or false: the angle of the mirrors is what we measure. (a) False (b) True
5. 5.True or false: a pencil is not needed for the periscope. (a) True (b) False
6. 6.⚖️ 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 same mirrors
7. 7.🔭 What does a periscope let you do? (a) see over a wall (b) see germs (c) see in the dark (d) hear far sounds
8. 8.🛟 Who should cut the holes in the juice carton? (a) the youngest child (b) nobody needs to (c) a friend who is running (d) a grown-up
9. 9.🔭 How many mirrors does a simple periscope use?
10. 10.🔮 Predict: you hold a written word up to a mirror. The letters look ___. (a) upside down only (b) in colour (c) much bigger (d) flipped left to right
11. 11.🔭 Which of these reflects light well? (a) a rough wooden board (b) a mirror (c) black cloth (d) a dull brick
12. 12.⚖️ 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 light (b) the same carton (c) the same mirrors (d) the angle of the mirrors
13. 13.🔭 Which of these reflects light well? (a) dark soil (b) aluminium foil (c) a dull brick (d) a rough wooden board
14. 14.🔭 Who uses a periscope to look above the water? (a) a pilot in a plane (b) a baker (c) a farmer (d) a submarine crew
15. 15.🔭 Does a shiny steel plate reflect light well or poorly? (a) reflects light poorly (b) reflects light well
16. 16.🧺 Which of these is needed for the periscope? (a) vinegar (b) a pencil (c) a balloon (d) a magnet
17. 17.True or false: a battery cell is not needed for the periscope. (a) False (b) True
18. 18.True or false: still clear water reflects light well. (a) True (b) False
19. 19.🧺 Which of these is needed for the periscope? (a) vinegar (b) a balloon (c) a magnet (d) a ruler
20. 20.🔭 Does still clear water reflect light well or poorly? (a) reflects light well (b) reflects light poorly
21. 21.🧺 Which of these is needed for the periscope? (a) an empty juice carton (b) yeast (c) a magnet (d) turmeric powder
22. 22.True or false: a shiny steel plate reflects light well. (a) False (b) True
23. 23.⚖️ Fair test — does the angle of the mirrors change how clearly you see? True or false: how clear the view is is kept the same. (a) True (b) False
24. 24.True or false: still clear water reflects light poorly. (a) False (b) True
25. 25.⚖️ Fair test — does the angle of the mirrors change how clearly you see? True or false: the same mirrors is kept the same. (a) True (b) False
26. 26.🧺 Do we need an empty juice carton for the periscope? (a) not needed (b) needed
27. 27.⚖️ Fair test — does the angle of the mirrors change how clearly you see? What do we do with “the same mirrors”? (a) we measure it (b) we change it (c) we keep it the same
28. 28.⚖️ Fair test — does the angle of the mirrors change how clearly you see? True or false: how clear the view is is what we measure. (a) False (b) True
29. 29.🧺 Which of these is needed for the periscope? (a) yeast (b) a magnet (c) turmeric powder (d) sticky tape
30. 30.True or false: a ruler is needed for the periscope. (a) True (b) False
31. 31.🧺 Do we need a ruler for the periscope? (a) not needed (b) needed
32. 32.🔮 Predict: you cover the top mirror with paper. What do you see? (a) a brighter view (b) only darkness (c) two pictures (d) a rainbow
33. 33.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) a pencil (b) an empty juice carton (c) sticky tape (d) turmeric powder
34. 34.🧺 Which of these is not needed for the periscope? (a) sticky tape (b) a balloon (c) a ruler (d) a pencil
35. 35.🧺 Do we need a magnet for the periscope? (a) needed (b) not needed
36. 36.🔍 Which is the odd one out? (a) a mirror (b) aluminium foil (c) still clear water (d) black cloth
37. 37.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) a ruler (b) vinegar (c) two small mirrors (d) a pencil
38. 38.🛟 You must never point a periscope or a mirror at ___. (a) a friend’s toy (b) a tree (c) the Sun (d) a wall
39. 39.⚖️ Fair test — does the angle of the mirrors change how clearly you see? What do we do with “the same light”? (a) we change it (b) we keep it the same (c) we measure it
40. 40.🧺 Do we need a battery cell for the periscope? (a) not needed (b) needed

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