Periscope STEM Project Worksheet

Science experiments lesson 28: Mirror periscope · Set 938 · 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.🔭 Does a mirror reflect light well or poorly? (a) reflects light well (b) reflects light poorly
2. 2.🧺 Do we need sticky tape for the periscope? (a) not needed (b) needed
3. 3.🔮 Predict: you cover the top mirror with paper. What do you see? (a) two pictures (b) a brighter view (c) only darkness (d) a rainbow
4. 4.True or false: a rough wooden board reflects light poorly. (a) False (b) True
5. 5.⚖️ 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
6. 6.True or false: still clear water reflects light well. (a) False (b) True
7. 7.🧺 Which of these is not needed for the periscope? (a) a pencil (b) a ruler (c) a magnet (d) sticky tape
8. 8.⚖️ 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
9. 9.⚖️ Fair test — does the angle of the mirrors change how clearly you see? What do we do with “the angle of the mirrors”? (a) we measure it (b) we change it (c) we keep it the same
10. 10.🔮 Predict: you hold a written word up to a mirror. The letters look ___. (a) upside down only (b) much bigger (c) flipped left to right (d) in colour
11. 11.🧺 Do we need a pencil for the periscope? (a) not needed (b) needed
12. 12.🔭 Which of these reflects light poorly? (a) a mirror (b) aluminium foil (c) black cloth (d) a shiny steel plate
13. 13.True or false: a balloon is not needed for the periscope. (a) True (b) False
14. 14.⚖️ Fair test — does the angle of the mirrors change how clearly you see? True or false: the same carton is what we measure. (a) True (b) False
15. 15.🔍 Which is the odd one out? (a) a shiny steel plate (b) aluminium foil (c) a mirror (d) dark soil
16. 16.🔭 How many mirrors does a simple periscope use?
17. 17.⚖️ 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) how clear the view is (c) the angle of the mirrors (d) the object we look at
18. 18.True or false: dark soil reflects light well. (a) False (b) True
19. 19.🔍 Which is the odd one out? (a) a rough wooden board (b) dark soil (c) a dull brick (d) a mirror
20. 20.True or false: yeast is needed for the periscope. (a) True (b) False
21. 21.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) two small mirrors (b) a ruler (c) an empty juice carton (d) vinegar
22. 22.🧺 Which of these is needed for the periscope? (a) a magnet (b) a battery cell (c) sticky tape (d) a balloon
23. 23.🔭 Does a shiny steel plate reflect light well or poorly? (a) reflects light well (b) reflects light poorly
24. 24.⚖️ Fair test — does the angle of the mirrors change how clearly you see? Which of these is kept the same? (a) the object we look at (b) how clear the view is (c) the angle of the mirrors
25. 25.🔭 Does still clear water reflect light well or poorly? (a) reflects light well (b) reflects light poorly
26. 26.⚖️ Fair test — does the angle of the mirrors change how clearly you see? True or false: the same mirrors is what we measure. (a) True (b) False
27. 27.🔭 Why must the two mirrors face each other and be parallel? (a) so it can float (b) so light reaches the eye (c) to make it heavy (d) so it looks shiny
28. 28.🔭 What does a periscope let you do? (a) see in the dark (b) see over a wall (c) hear far sounds (d) see germs
29. 29.🛟 You must never point a periscope or a mirror at ___. (a) a wall (b) a tree (c) the Sun (d) a friend’s toy
30. 30.🔍 Which is the odd one out? (a) aluminium foil (b) a dull brick (c) a shiny steel plate (d) a mirror
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 measure it (c) we keep it the same
33. 33.🔭 Does a dull brick reflect light well or poorly? (a) reflects light poorly (b) reflects light well
34. 34.🧺 Do we need turmeric powder for the periscope? (a) needed (b) not needed
35. 35.🧺 Which of these is needed for the periscope? (a) a balloon (b) a ruler (c) a magnet (d) yeast
36. 36.⚖️ 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
37. 37.⚖️ 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
38. 38.True or false: a shiny steel plate reflects light well. (a) False (b) True
39. 39.⚖️ Fair test — does the angle of the mirrors change how clearly you see? Which of these is what we measure? (a) how clear the view is (b) the same light (c) the object we look at (d) the angle of the mirrors
40. 40.🧺 Which of these is not needed for the periscope? (a) sticky tape (b) two small mirrors (c) vinegar (d) a ruler

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