Periscope STEM Project Worksheet

Science experiments lesson 28: Mirror periscope · Set 175 · 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 yeast for the periscope? (a) not needed (b) needed
2. 2.🧺 Do we need an empty juice carton for the periscope? (a) not needed (b) needed
3. 3.🧺 Do we need turmeric powder for the periscope? (a) needed (b) not needed
4. 4.True or false: a ruler is not needed for the periscope. (a) True (b) False
5. 5.⚖️ Fair test — does the angle of the mirrors change how clearly you see? True or false: the same mirrors is kept the same. (a) True (b) False
6. 6.⚖️ Fair test — does the angle of the mirrors change how clearly you see? True or false: how clear the view is is what we measure. (a) True (b) False
7. 7.🛟 Who should cut the holes in the juice carton? (a) a friend who is running (b) a grown-up (c) nobody needs to (d) the youngest child
8. 8.⚖️ 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
9. 9.⚖️ 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 keep it the same (c) we measure it
10. 10.🧺 Which of these is needed for the periscope? (a) a magnet (b) an empty juice carton (c) a balloon (d) vinegar
11. 11.🛟 You must never point a periscope or a mirror at ___. (a) a friend’s toy (b) a wall (c) a tree (d) the Sun
12. 12.True or false: black cloth reflects light poorly. (a) False (b) True
13. 13.⚖️ 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 light (b) the same mirrors (c) the object we look at (d) the angle of the mirrors
14. 14.🛟 Which mirrors are safest for a children’s periscope? (a) broken glass bits (b) loose glass panes (c) big wall mirrors (d) plastic safety mirrors
15. 15.🔭 How many mirrors does a simple periscope use?
16. 16.⚖️ 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) True (b) False
17. 17.⚖️ 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) True (b) False
18. 18.🧺 Which of these is needed for the periscope? (a) vinegar (b) a balloon (c) a battery cell (d) sticky tape
19. 19.🧺 Do we need vinegar for the periscope? (a) not needed (b) needed
20. 20.🔭 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
21. 21.True or false: sticky tape is not needed for the periscope. (a) False (b) True
22. 22.True or false: a dull brick reflects light poorly. (a) False (b) True
23. 23.🔭 Why must the two mirrors face each other and be parallel? (a) so it can float (b) to make it heavy (c) so it looks shiny (d) so light reaches the eye
24. 24.⚖️ Fair test — does the angle of the mirrors change how clearly you see? True or false: the angle of the mirrors is kept the same. (a) True (b) False
25. 25.🔭 Does a mirror 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? Which of these is kept the same? (a) how clear the view is (b) the angle of the mirrors (c) the same carton
27. 27.🔭 Which of these reflects light well? (a) dark soil (b) a mirror (c) a dull brick (d) a rough wooden board
28. 28.🔮 Predict: you cover the top mirror with paper. What do you see? (a) a rainbow (b) two pictures (c) only darkness (d) a brighter view
29. 29.True or false: a mirror reflects light poorly. (a) False (b) True
30. 30.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) two small mirrors (b) a magnet (c) a ruler (d) a pencil
31. 31.🔍 Which is the odd one out? (a) a rough wooden board (b) a dull brick (c) dark soil (d) aluminium foil
32. 32.🔭 What does a periscope let you do? (a) hear far sounds (b) see in the dark (c) see germs (d) see over a wall
33. 33.🧺 Which of these is needed for the periscope? (a) vinegar (b) a battery cell (c) a ruler (d) a balloon
34. 34.🧺 Which of these is needed for the periscope? (a) two small mirrors (b) vinegar (c) turmeric powder (d) a balloon
35. 35.🧺 Do we need a battery cell for the periscope? (a) not needed (b) needed
36. 36.📘 Light bouncing off a mirror is called ___. (a) reflection (b) evaporation (c) magnetism (d) refraction
37. 37.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) a balloon (b) sticky tape (c) a pencil (d) two small mirrors
38. 38.⚖️ 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
39. 39.⚖️ Fair test — does the angle of the mirrors change how clearly you see? True or false: the same light is what we measure. (a) False (b) True
40. 40.🧺 Which of these is not needed for the periscope? (a) a ruler (b) an empty juice carton (c) a battery cell (d) sticky tape

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