Periscope STEM Project Worksheet

Science experiments lesson 28: Mirror periscope · Set 53 · 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.🔮 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
3. 3.🔍 Which is the odd one out? (a) a rough wooden board (b) aluminium foil (c) a mirror (d) a shiny steel plate
4. 4.🛟 Which mirrors are safest for a children’s periscope? (a) loose glass panes (b) plastic safety mirrors (c) broken glass bits (d) big wall mirrors
5. 5.⚖️ Fair test — does the angle of the mirrors change how clearly you see? Which of these is what we measure? (a) the object we look at (b) the same light (c) the same mirrors (d) how clear the view is
6. 6.⚖️ 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
7. 7.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) a pencil (b) two small mirrors (c) turmeric powder (d) a ruler
8. 8.True or false: sticky tape is not needed for the periscope. (a) False (b) True
9. 9.🛟 Who should cut the holes in the juice carton? (a) the youngest child (b) a grown-up (c) a friend who is running (d) nobody needs to
10. 10.🧺 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 pencil
11. 11.True or false: a shiny steel plate reflects light well. (a) True (b) False
12. 12.🧺 Do we need sticky tape for the periscope? (a) needed (b) not needed
13. 13.🔍 Which is the odd one out? (a) still clear water (b) a dull brick (c) black cloth (d) dark soil
14. 14.True or false: a mirror reflects light poorly. (a) True (b) False
15. 15.⚖️ Fair test — does the angle of the mirrors change how clearly you see? Which of these is the one thing we change? (a) the angle of the mirrors (b) the object we look at (c) the same light (d) the same carton
16. 16.🛟 You must never point a periscope or a mirror at ___. (a) a tree (b) a wall (c) a friend’s toy (d) the Sun
17. 17.🔭 Does black cloth reflect light well or poorly? (a) reflects light well (b) reflects light poorly
18. 18.🔭 How many mirrors does a simple periscope use?
19. 19.🧺 Do we need turmeric powder for the periscope? (a) needed (b) not needed
20. 20.⚖️ 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
21. 21.🔍 Which is the odd one out? (a) black cloth (b) a shiny steel plate (c) dark soil (d) a dull brick
22. 22.🧺 Do we need two small mirrors for the periscope? (a) needed (b) not needed
23. 23.🔍 Which is the odd one out? (a) a dull brick (b) dark soil (c) black cloth (d) a mirror
24. 24.🔍 Which is the odd one out? (a) dark soil (b) a mirror (c) still clear water (d) a shiny steel plate
25. 25.True or false: a ruler is needed for the periscope. (a) False (b) True
26. 26.🧺 Which of these is needed for the periscope? (a) a battery cell (b) vinegar (c) a ruler (d) turmeric powder
27. 27.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) a ruler (b) a magnet (c) an empty juice carton (d) two small mirrors
28. 28.🧺 Do we need a balloon for the periscope? (a) needed (b) not needed
29. 29.🧺 Do we need yeast for the periscope? (a) not needed (b) needed
30. 30.🔮 Predict: you make the periscope tube twice as tall. You can see over ___. (a) taller walls (b) nothing at all (c) only short walls (d) the ground
31. 31.⚖️ Fair test — does the angle of the mirrors change how clearly you see? True or false: the same light is kept the same. (a) False (b) True
32. 32.🔭 Which of these reflects light well? (a) a dull brick (b) a rough wooden board (c) aluminium foil (d) black cloth
33. 33.🔭 Does a mirror reflect light well or poorly? (a) reflects light well (b) reflects light poorly
34. 34.🔭 Does still clear water reflect light well or poorly? (a) reflects light poorly (b) reflects light well
35. 35.🔮 Predict: you cover the top mirror with paper. What do you see? (a) a brighter view (b) a rainbow (c) only darkness (d) two pictures
36. 36.⚖️ 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 keep it the same (c) we measure it
37. 37.🧺 Which of these is not needed for the periscope? (a) sticky tape (b) a ruler (c) a battery cell (d) two small mirrors
38. 38.🔭 Which of these reflects light poorly? (a) a mirror (b) still clear water (c) a rough wooden board (d) a shiny steel plate
39. 39.True or false: still clear water reflects light poorly. (a) False (b) True
40. 40.True or false: vinegar is needed for the periscope. (a) True (b) False

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