Periscope STEM Project Worksheet

Science experiments lesson 28: Mirror periscope · Set 695 · 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 of these is needed for the periscope? (a) a ruler (b) a magnet (c) a balloon (d) yeast
3. 3.🔍 Which is the odd one out? (a) dark soil (b) a rough wooden board (c) a dull brick (d) aluminium foil
4. 4.⚖️ 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 keep it the same (b) we measure it (c) we change it
5. 5.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) two small mirrors (b) vinegar (c) a pencil (d) sticky tape
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 measure it (b) we change it (c) we keep it the same
7. 7.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) a pencil (b) an empty juice carton (c) turmeric powder (d) a ruler
8. 8.🧺 Which of these is needed for the periscope? (a) a magnet (b) a balloon (c) a battery cell (d) two small mirrors
9. 9.🔭 Who uses a periscope to look above the water? (a) a baker (b) a pilot in a plane (c) a submarine crew (d) a farmer
10. 10.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) a magnet (b) a pencil (c) an empty juice carton (d) two small mirrors
11. 11.⚖️ Fair test — does the angle of the mirrors change how clearly you see? Which of these is what we measure? (a) the same light (b) how clear the view is (c) the same carton (d) the object we look at
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 carton (b) the same light (c) how clear the view is (d) the angle of the mirrors
13. 13.True or false: dark soil reflects light poorly. (a) True (b) False
14. 14.🧺 Which of these is not needed for the periscope? (a) two small mirrors (b) yeast (c) sticky tape (d) an empty juice carton
15. 15.🔭 Does still clear water reflect light well or poorly? (a) reflects light well (b) reflects light poorly
16. 16.🔭 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
17. 17.True or false: a mirror reflects light poorly. (a) True (b) False
18. 18.🔍 Which is the odd one out? (a) dark soil (b) a dull brick (c) a mirror (d) black cloth
19. 19.True or false: a magnet is not needed for the periscope. (a) False (b) True
20. 20.🧺 Which of these is needed for the periscope? (a) a battery cell (b) yeast (c) an empty juice carton (d) a magnet
21. 21.🔮 Predict: you hold a written word up to a mirror. The letters look ___. (a) much bigger (b) flipped left to right (c) upside down only (d) in colour
22. 22.🔭 At what angle are the mirrors set in a simple periscope? (a) 10 degrees (b) 90 degrees (c) 180 degrees (d) 45 degrees
23. 23.🧺 Do we need vinegar for the periscope? (a) needed (b) not needed
24. 24.True or false: turmeric powder is not needed for the periscope. (a) False (b) True
25. 25.True or false: a balloon is needed for the periscope. (a) False (b) True
26. 26.🔭 How many mirrors does a simple periscope use?
27. 27.⚖️ Fair test — does the angle of the mirrors change how clearly you see? Which of these is kept the same? (a) how clear the view is (b) the same light (c) the angle of the mirrors
28. 28.🔮 Predict: you cover the top mirror with paper. What do you see? (a) a rainbow (b) only darkness (c) a brighter view (d) two pictures
29. 29.🔍 Which is the odd one out? (a) black cloth (b) a dull brick (c) a shiny steel plate (d) a rough wooden board
30. 30.📘 Light bouncing off a mirror is called ___. (a) refraction (b) reflection (c) magnetism (d) evaporation
31. 31.True or false: a shiny steel plate reflects light well. (a) False (b) True
32. 32.🧺 Do we need sticky tape for the periscope? (a) not needed (b) needed
33. 33.⚖️ 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) False (b) True
34. 34.⚖️ Fair test — does the angle of the mirrors change how clearly you see? True or false: the same carton is the one thing we change. (a) True (b) False
35. 35.⚖️ Fair test — does the angle of the mirrors change how clearly you see? True or false: the same mirrors is the one thing we change. (a) True (b) False
36. 36.🧺 Which of these is needed for the periscope? (a) a magnet (b) a balloon (c) sticky tape (d) turmeric powder
37. 37.🔮 Predict: you make the periscope tube twice as tall. You can see over ___. (a) nothing at all (b) taller walls (c) only short walls (d) the ground
38. 38.🛟 Who should cut the holes in the juice carton? (a) nobody needs to (b) the youngest child (c) a friend who is running (d) a grown-up
39. 39.🔍 Which is the odd one out? (a) a dull brick (b) black cloth (c) dark soil (d) still clear water
40. 40.🔭 Does aluminium foil reflect light well or poorly? (a) reflects light poorly (b) reflects light well

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