Periscope STEM Project Worksheet

Science experiments lesson 28: Mirror periscope · Set 841 · 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.🛟 Who should cut the holes in the juice carton? (a) a friend who is running (b) nobody needs to (c) the youngest child (d) a grown-up
2. 2.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) turmeric powder (b) sticky tape (c) an empty juice carton (d) a pencil
3. 3.🔭 How many mirrors does a simple periscope use?
4. 4.📘 Light bouncing off a mirror is called ___. (a) refraction (b) magnetism (c) reflection (d) evaporation
5. 5.🔭 At what angle are the mirrors set in a simple periscope? (a) 90 degrees (b) 10 degrees (c) 180 degrees (d) 45 degrees
6. 6.⚖️ 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 carton (c) the angle of the mirrors
7. 7.⚖️ 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
8. 8.🔍 Which is the odd one out? (a) a dull brick (b) dark soil (c) aluminium foil (d) a rough wooden board
9. 9.🛟 You must never point a periscope or a mirror at ___. (a) a wall (b) a friend’s toy (c) a tree (d) the Sun
10. 10.True or false: sticky tape is not needed for the periscope. (a) False (b) True
11. 11.🔍 Which is the odd one out? (a) a dull brick (b) dark soil (c) a rough wooden board (d) still clear water
12. 12.True or false: vinegar is needed for the periscope. (a) False (b) True
13. 13.True or false: aluminium foil reflects light poorly. (a) True (b) False
14. 14.⚖️ 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 keep it the same (c) we change it
15. 15.True or false: black cloth reflects light poorly. (a) False (b) True
16. 16.🔭 Does a mirror reflect light well or poorly? (a) reflects light poorly (b) reflects light well
17. 17.🧺 Which of these is needed for the periscope? (a) turmeric powder (b) vinegar (c) sticky tape (d) a balloon
18. 18.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) a balloon (b) a ruler (c) two small mirrors (d) sticky tape
19. 19.🧺 Which of these is not needed for the periscope? (a) a ruler (b) a pencil (c) a balloon (d) two small mirrors
20. 20.🛟 Which mirrors are safest for a children’s periscope? (a) loose glass panes (b) big wall mirrors (c) broken glass bits (d) plastic safety mirrors
21. 21.🧺 Which of these is needed for the periscope? (a) two small mirrors (b) turmeric powder (c) vinegar (d) a magnet
22. 22.🧺 Which of these is needed for the periscope? (a) an empty juice carton (b) yeast (c) a magnet (d) turmeric powder
23. 23.True or false: a mirror reflects light poorly. (a) True (b) False
24. 24.⚖️ Fair test — does the angle of the mirrors change how clearly you see? True or false: how clear the view is is kept the same. (a) True (b) False
25. 25.🔍 Which is the odd one out? (a) a shiny steel plate (b) a rough wooden board (c) aluminium foil (d) a mirror
26. 26.🧺 Which of these is not needed for the periscope? (a) sticky tape (b) a pencil (c) vinegar (d) a ruler
27. 27.🔭 Does a dull brick reflect light well or poorly? (a) reflects light poorly (b) reflects light well
28. 28.🔭 Does a rough wooden board reflect light well or poorly? (a) reflects light well (b) reflects light poorly
29. 29.True or false: a rough wooden board reflects light poorly. (a) True (b) False
30. 30.🔭 Which of these reflects light well? (a) still clear water (b) a rough wooden board (c) black cloth (d) a dull brick
31. 31.🧺 Do we need vinegar for the periscope? (a) needed (b) not needed
32. 32.🔮 Predict: you cover the top mirror with paper. What do you see? (a) a rainbow (b) a brighter view (c) two pictures (d) only darkness
33. 33.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) an empty juice carton (b) a pencil (c) a magnet (d) a ruler
34. 34.🔭 Does a shiny steel plate reflect light well or poorly? (a) reflects light poorly (b) reflects light well
35. 35.🔮 Predict: you make the periscope tube twice as tall. You can see over ___. (a) the ground (b) taller walls (c) nothing at all (d) only short walls
36. 36.🔭 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
37. 37.🧺 Do we need a balloon for the periscope? (a) not needed (b) needed
38. 38.True or false: turmeric powder is needed for the periscope. (a) False (b) True
39. 39.🔭 Which of these reflects light poorly? (a) aluminium foil (b) a shiny steel plate (c) a dull brick (d) a mirror
40. 40.🔮 Predict: you hold a written word up to a mirror. The letters look ___. (a) upside down only (b) flipped left to right (c) much bigger (d) in colour

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