Periscope STEM Project Worksheet

Science experiments lesson 28: Mirror periscope · Set 333 · 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 sticky tape for the periscope? (a) not needed (b) needed
2. 2.🔭 Does a mirror reflect light well or poorly? (a) reflects light poorly (b) reflects light well
3. 3.🔭 What does a periscope let you do? (a) see in the dark (b) hear far sounds (c) see over a wall (d) see germs
4. 4.🔮 Predict: you cover the top mirror with paper. What do you see? (a) only darkness (b) two pictures (c) a brighter view (d) a rainbow
5. 5.🧺 Which of these is needed for the periscope? (a) a magnet (b) a balloon (c) vinegar (d) a pencil
6. 6.⚖️ Fair test — does the angle of the mirrors change how clearly you see? Which of these is the one thing we change? (a) the object we look at (b) how clear the view is (c) the same carton (d) the angle of the mirrors
7. 7.🧺 Do we need a ruler for the periscope? (a) needed (b) not needed
8. 8.🧺 Which of these is needed for the periscope? (a) a magnet (b) a battery cell (c) a ruler (d) yeast
9. 9.🔭 Does still clear water reflect light well or poorly? (a) reflects light well (b) reflects light poorly
10. 10.📘 Light bouncing off a mirror is called ___. (a) refraction (b) evaporation (c) magnetism (d) reflection
11. 11.🔍 Which is the odd one out? (a) black cloth (b) a dull brick (c) a mirror (d) a rough wooden board
12. 12.🛟 Who should cut the holes in the juice carton? (a) the youngest child (b) nobody needs to (c) a grown-up (d) a friend who is running
13. 13.True or false: turmeric powder is needed for the periscope. (a) True (b) False
14. 14.True or false: a pencil is not needed for the periscope. (a) True (b) False
15. 15.True or false: turmeric powder is not needed for the periscope. (a) False (b) True
16. 16.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) two small mirrors (b) a pencil (c) a balloon (d) a ruler
17. 17.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) a magnet (b) two small mirrors (c) a pencil (d) a ruler
18. 18.True or false: a magnet is needed for the periscope. (a) True (b) False
19. 19.🛟 You must never point a periscope or a mirror at ___. (a) a tree (b) the Sun (c) a wall (d) a friend’s toy
20. 20.🔍 Which is the odd one out? (a) a dull brick (b) a rough wooden board (c) dark soil (d) a shiny steel plate
21. 21.⚖️ 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) False (b) True
22. 22.⚖️ Fair test — does the angle of the mirrors change how clearly you see? What do we do with “the same carton”? (a) we keep it the same (b) we measure it (c) we change it
23. 23.🔭 How many mirrors does a simple periscope use?
24. 24.True or false: two small mirrors is not needed for the periscope. (a) True (b) False
25. 25.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) two small mirrors (b) vinegar (c) a pencil (d) a ruler
26. 26.🧺 Do we need an empty juice carton for the periscope? (a) needed (b) not needed
27. 27.🔭 At what angle are the mirrors set in a simple periscope? (a) 180 degrees (b) 10 degrees (c) 45 degrees (d) 90 degrees
28. 28.⚖️ 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) False (b) True
29. 29.⚖️ 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 measure it (b) we keep it the same (c) we change it
30. 30.True or false: a shiny steel plate reflects light well. (a) False (b) True
31. 31.🔍 Which is the odd one out? (a) aluminium foil (b) dark soil (c) a rough wooden board (d) black cloth
32. 32.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) a ruler (b) sticky tape (c) turmeric powder (d) an empty juice carton
33. 33.🔮 Predict: you hold a written word up to a mirror. The letters look ___. (a) much bigger (b) flipped left to right (c) in colour (d) upside down only
34. 34.⚖️ Fair test — does the angle of the mirrors change how clearly you see? True or false: how clear the view is is the one thing we change. (a) False (b) True
35. 35.🔭 Which of these reflects light well? (a) dark soil (b) black cloth (c) a dull brick (d) a shiny steel plate
36. 36.🔭 Which of these reflects light well? (a) black cloth (b) dark soil (c) a mirror (d) a dull brick
37. 37.🧺 Do we need turmeric powder for the periscope? (a) not needed (b) needed
38. 38.⚖️ 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
39. 39.True or false: a mirror reflects light poorly. (a) True (b) False
40. 40.🔭 How many times does light bounce off a mirror in a simple periscope?

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