Periscope STEM Project Worksheet

Science experiments lesson 28: Mirror periscope · Set 963 · 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.⚖️ Fair test — does the angle of the mirrors change how clearly you see? Which of these is the one thing we change? (a) the angle of the mirrors (b) how clear the view is (c) the same mirrors (d) the object we look at
3. 3.🔭 How many mirrors does a simple periscope use?
4. 4.🔮 Predict: you hold a written word up to a mirror. The letters look ___. (a) in colour (b) much bigger (c) upside down only (d) flipped left to right
5. 5.🔍 Which is the odd one out? (a) still clear water (b) a dull brick (c) dark soil (d) black cloth
6. 6.⚖️ 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 change it (b) we measure it (c) we keep it the same
7. 7.🔭 Does a shiny steel plate reflect light well or poorly? (a) reflects light well (b) reflects light poorly
8. 8.🔭 What does a periscope let you do? (a) see germs (b) see over a wall (c) see in the dark (d) hear far sounds
9. 9.🔭 Who uses a periscope to look above the water? (a) a farmer (b) a baker (c) a pilot in a plane (d) a submarine crew
10. 10.🧺 Which of these is not needed for the periscope? (a) an empty juice carton (b) a pencil (c) turmeric powder (d) a ruler
11. 11.🔍 Which is the odd one out? (a) a shiny steel plate (b) aluminium foil (c) a mirror (d) a rough wooden board
12. 12.🔍 Which is the odd one out? (a) a dull brick (b) dark soil (c) black cloth (d) a shiny steel plate
13. 13.🛟 You must never point a periscope or a mirror at ___. (a) the Sun (b) a tree (c) a wall (d) a friend’s toy
14. 14.🔭 Does a rough wooden board reflect light well or poorly? (a) reflects light well (b) reflects light poorly
15. 15.True or false: a battery cell is needed for the periscope. (a) False (b) True
16. 16.🛟 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
17. 17.🔍 Which is the odd one out? (a) a dull brick (b) black cloth (c) aluminium foil (d) a rough wooden board
18. 18.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) sticky tape (b) a balloon (c) an empty juice carton (d) a ruler
19. 19.🔭 Which of these reflects light well? (a) still clear water (b) a dull brick (c) black cloth (d) a rough wooden board
20. 20.🔮 Predict: you cover the top mirror with paper. What do you see? (a) a brighter view (b) a rainbow (c) two pictures (d) only darkness
21. 21.🔭 Which of these reflects light poorly? (a) still clear water (b) a mirror (c) a shiny steel plate (d) black cloth
22. 22.🔭 Which of these reflects light well? (a) black cloth (b) a rough wooden board (c) a dull brick (d) aluminium foil
23. 23.🔮 Predict: you make the periscope tube twice as tall. You can see over ___. (a) the ground (b) only short walls (c) taller walls (d) nothing at all
24. 24.🔭 Which of these reflects light poorly? (a) a shiny steel plate (b) a rough wooden board (c) still clear water (d) aluminium foil
25. 25.True or false: sticky tape is needed for the periscope. (a) False (b) True
26. 26.True or false: a mirror reflects light poorly. (a) False (b) True
27. 27.🧺 Which of these is needed for the periscope? (a) a ruler (b) a battery cell (c) a magnet (d) turmeric powder
28. 28.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) a magnet (b) a ruler (c) an empty juice carton (d) a pencil
29. 29.⚖️ Fair test — does the angle of the mirrors change how clearly you see? Which of these is what we measure? (a) the angle of the mirrors (b) the same light (c) how clear the view is (d) the same mirrors
30. 30.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) a pencil (b) a ruler (c) sticky tape (d) yeast
31. 31.⚖️ 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 change it (c) we keep it the same
32. 32.⚖️ Fair test — does the angle of the mirrors change how clearly you see? What do we do with “how clear the view is”? (a) we change it (b) we keep it the same (c) we measure it
33. 33.🔭 Which of these reflects light poorly? (a) a dull brick (b) a mirror (c) aluminium foil (d) still clear water
34. 34.🔍 Which is the odd one out? (a) a dull brick (b) a shiny steel plate (c) a mirror (d) aluminium foil
35. 35.⚖️ Fair test — does the angle of the mirrors change how clearly you see? True or false: the same carton is kept the same. (a) False (b) True
36. 36.🧺 Do we need a ruler for the periscope? (a) needed (b) not needed
37. 37.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) turmeric powder (b) sticky tape (c) an empty juice carton (d) a pencil
38. 38.🧺 Which of these is needed for the periscope? (a) turmeric powder (b) vinegar (c) sticky tape (d) a magnet
39. 39.📘 Light bouncing off a mirror is called ___. (a) reflection (b) evaporation (c) refraction (d) magnetism
40. 40.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) a pencil (b) two small mirrors (c) a battery cell (d) an empty juice carton

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