Periscope STEM Project Worksheet

Science experiments lesson 28: Mirror periscope · Set 506 · 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 a pencil for the periscope? (a) not needed (b) needed
2. 2.🔍 Which is the odd one out? (a) a mirror (b) dark soil (c) aluminium foil (d) still clear water
3. 3.🧺 Do we need yeast for the periscope? (a) not needed (b) needed
4. 4.🧺 Which of these is needed for the periscope? (a) a ruler (b) a battery cell (c) yeast (d) a magnet
5. 5.🛟 Who should cut the holes in the juice carton? (a) a friend who is running (b) the youngest child (c) a grown-up (d) nobody needs to
6. 6.True or false: a battery cell is not needed for the periscope. (a) True (b) False
7. 7.🛟 You must never point a periscope or a mirror at ___. (a) a friend’s toy (b) the Sun (c) a wall (d) a tree
8. 8.⚖️ 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) the angle of the mirrors (c) how clear the view is
9. 9.⚖️ 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
10. 10.⚖️ 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 change it (c) we measure it
11. 11.⚖️ 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
12. 12.True or false: two small mirrors is not needed for the periscope. (a) True (b) False
13. 13.⚖️ 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
14. 14.True or false: a ruler is not needed for the periscope. (a) True (b) False
15. 15.⚖️ 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 change it (b) we keep it the same (c) we measure it
16. 16.🔭 Which of these reflects light well? (a) a rough wooden board (b) aluminium foil (c) dark soil (d) black cloth
17. 17.🔭 Does black cloth reflect light well or poorly? (a) reflects light poorly (b) reflects light well
18. 18.⚖️ 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 carton
19. 19.🔭 Who uses a periscope to look above the water? (a) a submarine crew (b) a farmer (c) a baker (d) a pilot in a plane
20. 20.🧺 Do we need a ruler for the periscope? (a) needed (b) not needed
21. 21.⚖️ Fair test — does the angle of the mirrors change how clearly you see? What do we do with “the same light”? (a) we keep it the same (b) we change it (c) we measure it
22. 22.True or false: a mirror reflects light poorly. (a) True (b) False
23. 23.🧺 Which of these is not needed for the periscope? (a) sticky tape (b) turmeric powder (c) a ruler (d) two small mirrors
24. 24.True or false: black cloth reflects light well. (a) True (b) False
25. 25.🔭 What does a periscope let you do? (a) see in the dark (b) hear far sounds (c) see germs (d) see over a wall
26. 26.🧺 Which of these is needed for the periscope? (a) turmeric powder (b) vinegar (c) yeast (d) sticky tape
27. 27.True or false: sticky tape is not needed for the periscope. (a) True (b) False
28. 28.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) a pencil (b) two small mirrors (c) a ruler (d) a balloon
29. 29.🧺 Do we need two small mirrors for the periscope? (a) not needed (b) needed
30. 30.🔭 How many mirrors does a simple periscope use?
31. 31.🔭 Why must the two mirrors face each other and be parallel? (a) to make it heavy (b) so light reaches the eye (c) so it looks shiny (d) so it can float
32. 32.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) a ruler (b) two small mirrors (c) an empty juice carton (d) a battery cell
33. 33.🔮 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
34. 34.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) a pencil (b) two small mirrors (c) a ruler (d) yeast
35. 35.True or false: vinegar is not needed for the periscope. (a) True (b) False
36. 36.🧺 Do we need turmeric powder for the periscope? (a) needed (b) not needed
37. 37.🔭 Which of these reflects light well? (a) a mirror (b) black cloth (c) a rough wooden board (d) a dull brick
38. 38.True or false: two small mirrors is needed for the periscope. (a) False (b) True
39. 39.🧺 Do we need an empty juice carton for the periscope? (a) needed (b) not needed
40. 40.🔮 Predict: you cover the top mirror with paper. What do you see? (a) a rainbow (b) two pictures (c) a brighter view (d) only darkness

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