Periscope STEM Project Worksheet

Science experiments lesson 28: Mirror periscope · Set 852 · 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.True or false: turmeric powder is not needed for the periscope. (a) True (b) False
2. 2.⚖️ Fair test — does the angle of the mirrors change how clearly you see? What do we do with “the same carton”? (a) we change it (b) we keep it the same (c) we measure it
3. 3.🔭 Which of these reflects light well? (a) a dull brick (b) a rough wooden board (c) dark soil (d) aluminium foil
4. 4.🔭 How many times does light bounce off a mirror in a simple periscope?
5. 5.True or false: turmeric powder is needed for the periscope. (a) False (b) True
6. 6.⚖️ Fair test — does the angle of the mirrors change how clearly you see? What do we do with “the same mirrors”? (a) we change it (b) we measure it (c) we keep it the same
7. 7.🔮 Predict: you hold a written word up to a mirror. The letters look ___. (a) flipped left to right (b) much bigger (c) upside down only (d) in colour
8. 8.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) a pencil (b) a ruler (c) two small mirrors (d) a magnet
9. 9.🛟 Who should cut the holes in the juice carton? (a) the youngest child (b) a grown-up (c) nobody needs to (d) a friend who is running
10. 10.🔮 Predict: you cover the top mirror with paper. What do you see? (a) two pictures (b) only darkness (c) a brighter view (d) a rainbow
11. 11.🔍 Which is the odd one out? (a) a dull brick (b) a rough wooden board (c) a shiny steel plate (d) black cloth
12. 12.🔭 What does a periscope let you do? (a) see over a wall (b) hear far sounds (c) see germs (d) see in the dark
13. 13.🧺 Do we need a pencil for the periscope? (a) not needed (b) needed
14. 14.🔭 How many mirrors does a simple periscope use?
15. 15.🧺 Which of these is not needed for the periscope? (a) an empty juice carton (b) a ruler (c) two small mirrors (d) a battery cell
16. 16.🔍 Which is the odd one out? (a) still clear water (b) black cloth (c) a dull brick (d) a rough wooden board
17. 17.⚖️ Fair test — does the angle of the mirrors change how clearly you see? True or false: the same carton is kept the same. (a) True (b) False
18. 18.🔭 Which of these reflects light well? (a) a mirror (b) a rough wooden board (c) black cloth (d) a dull brick
19. 19.⚖️ 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 change it (c) we keep it the same
20. 20.🔭 Does dark soil reflect light well or poorly? (a) reflects light poorly (b) reflects light well
21. 21.🔍 Which is the odd one out? (a) a mirror (b) a dull brick (c) aluminium foil (d) still clear water
22. 22.⚖️ Fair test — does the angle of the mirrors change how clearly you see? True or false: the same mirrors is what we measure. (a) True (b) False
23. 23.🧺 Do we need a balloon for the periscope? (a) not needed (b) needed
24. 24.🔭 Which of these reflects light poorly? (a) a shiny steel plate (b) a mirror (c) dark soil (d) aluminium foil
25. 25.🔍 Which is the odd one out? (a) black cloth (b) a rough wooden board (c) dark soil (d) a mirror
26. 26.⚖️ 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) the same carton (c) how clear the view is
27. 27.🧺 Which of these is needed for the periscope? (a) vinegar (b) a magnet (c) two small mirrors (d) turmeric powder
28. 28.🛟 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
29. 29.⚖️ 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 measure it (b) we change it (c) we keep it the same
30. 30.🔭 Which of these reflects light well? (a) black cloth (b) a shiny steel plate (c) a dull brick (d) dark soil
31. 31.True or false: still clear water reflects light well. (a) False (b) True
32. 32.True or false: still clear water reflects light poorly. (a) False (b) True
33. 33.True or false: a magnet is needed for the periscope. (a) True (b) False
34. 34.🧺 Which of these is needed for the periscope? (a) a balloon (b) yeast (c) a ruler (d) turmeric powder
35. 35.🧺 Do we need a ruler for the periscope? (a) not needed (b) needed
36. 36.⚖️ 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) how clear the view is (c) the same mirrors (d) the same light
37. 37.🔍 Which is the odd one out? (a) a mirror (b) still clear water (c) a rough wooden board (d) a shiny steel plate
38. 38.🔭 Which of these reflects light poorly? (a) a shiny steel plate (b) a mirror (c) still clear water (d) black cloth
39. 39.🔭 Does a mirror reflect light well or poorly? (a) reflects light poorly (b) reflects light well
40. 40.⚖️ 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) the object we look at (c) how clear the view is

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