Periscope STEM Project Worksheet

Science experiments lesson 28: Mirror periscope · Set 495 · 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) nobody needs to (b) a friend who is running (c) a grown-up (d) the youngest child
2. 2.🔭 Why must the two mirrors face each other and be parallel? (a) to make it heavy (b) so it looks shiny (c) so it can float (d) so light reaches the eye
3. 3.🔍 Which is the odd one out? (a) still clear water (b) dark soil (c) a dull brick (d) black cloth
4. 4.🧺 Do we need an empty juice carton for the periscope? (a) not needed (b) needed
5. 5.🔭 Which of these reflects light well? (a) a dull brick (b) dark soil (c) black cloth (d) still clear water
6. 6.🔭 Who uses a periscope to look above the water? (a) a farmer (b) a submarine crew (c) a baker (d) a pilot in a plane
7. 7.True or false: dark soil reflects light well. (a) True (b) False
8. 8.🔭 How many times does light bounce off a mirror in a simple periscope?
9. 9.⚖️ Fair test — does the angle of the mirrors change how clearly you see? True or false: the object we look at is the one thing we change. (a) True (b) False
10. 10.🧺 Do we need a pencil for the periscope? (a) not needed (b) needed
11. 11.🧺 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
12. 12.🧺 Which of these is not needed for the periscope? (a) sticky tape (b) a balloon (c) a ruler (d) a pencil
13. 13.🔮 Predict: you cover the top mirror with paper. What do you see? (a) two pictures (b) a rainbow (c) a brighter view (d) only darkness
14. 14.⚖️ Fair test — does the angle of the mirrors change how clearly you see? True or false: the angle of the mirrors is what we measure. (a) False (b) True
15. 15.⚖️ Fair test — does the angle of the mirrors change how clearly you see? Which of these is what we measure? (a) the same mirrors (b) how clear the view is (c) the same light (d) the angle of the mirrors
16. 16.🧺 Which of these is not needed for the periscope? (a) a pencil (b) two small mirrors (c) an empty juice carton (d) vinegar
17. 17.🧺 Do we need a magnet for the periscope? (a) needed (b) not needed
18. 18.🔭 Does dark soil reflect light well or poorly? (a) reflects light well (b) reflects light poorly
19. 19.🧺 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
20. 20.🛟 You must never point a periscope or a mirror at ___. (a) a friend’s toy (b) the Sun (c) a tree (d) a wall
21. 21.⚖️ 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
22. 22.🔭 What does a periscope let you do? (a) see germs (b) hear far sounds (c) see over a wall (d) see in the dark
23. 23.⚖️ Fair test — does the angle of the mirrors change how clearly you see? True or false: the same mirrors is kept the same. (a) False (b) True
24. 24.⚖️ 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
25. 25.True or false: still clear water reflects light poorly. (a) True (b) False
26. 26.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) sticky tape (b) yeast (c) an empty juice carton (d) a ruler
27. 27.🔭 Does a rough wooden board reflect light well or poorly? (a) reflects light poorly (b) reflects light well
28. 28.⚖️ Fair test — does the angle of the mirrors change how clearly you see? What do we do with “the same mirrors”? (a) we keep it the same (b) we measure it (c) we change it
29. 29.🔮 Predict: you hold a written word up to a mirror. The letters look ___. (a) in colour (b) much bigger (c) flipped left to right (d) upside down only
30. 30.🔭 How many mirrors does a simple periscope use?
31. 31.🔭 Which of these reflects light well? (a) a dull brick (b) dark soil (c) a shiny steel plate (d) a rough wooden board
32. 32.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) a pencil (b) an empty juice carton (c) vinegar (d) sticky tape
33. 33.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) an empty juice carton (b) a magnet (c) a pencil (d) sticky tape
34. 34.True or false: a balloon is not needed for the periscope. (a) True (b) False
35. 35.🧺 Do we need a ruler for the periscope? (a) not needed (b) needed
36. 36.🧺 Do we need turmeric powder for the periscope? (a) needed (b) not needed
37. 37.⚖️ 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
38. 38.🔭 Which of these reflects light poorly? (a) a shiny steel plate (b) a rough wooden board (c) still clear water (d) a mirror
39. 39.⚖️ 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 object we look at (c) the angle of the mirrors
40. 40.⚖️ 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

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