Periscope STEM Project Worksheet

Science experiments lesson 28: Mirror periscope · Set 738 · 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.🔍 Which is the odd one out? (a) still clear water (b) aluminium foil (c) black cloth (d) a mirror
2. 2.🔍 Which is the odd one out? (a) aluminium foil (b) a mirror (c) still clear water (d) a rough wooden board
3. 3.🔮 Predict: you make the periscope tube twice as tall. You can see over ___. (a) taller walls (b) only short walls (c) nothing at all (d) the ground
4. 4.🔭 Does a shiny steel plate reflect light well or poorly? (a) reflects light well (b) reflects light poorly
5. 5.🔭 Does dark soil reflect light well or poorly? (a) reflects light well (b) reflects light poorly
6. 6.🔭 Does still clear water reflect light well or poorly? (a) reflects light poorly (b) reflects light well
7. 7.⚖️ Fair test — does the angle of the mirrors change how clearly you see? What do we do with “the same carton”? (a) we keep it the same (b) we change it (c) we measure it
8. 8.🛟 Who should cut the holes in the juice carton? (a) nobody needs to (b) a friend who is running (c) the youngest child (d) a grown-up
9. 9.🧺 Which of these is not needed for the periscope? (a) sticky tape (b) an empty juice carton (c) a magnet (d) a ruler
10. 10.⚖️ 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
11. 11.⚖️ 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
12. 12.🧺 Which of these is not needed for the periscope? (a) a balloon (b) sticky tape (c) a ruler (d) an empty juice carton
13. 13.True or false: an empty juice carton is not needed for the periscope. (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 object we look at”? (a) we keep it the same (b) we measure it (c) we change it
15. 15.True or false: sticky tape is needed for the periscope. (a) True (b) False
16. 16.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) a pencil (b) a battery cell (c) a ruler (d) sticky tape
17. 17.🔭 Which of these reflects light poorly? (a) a shiny steel plate (b) black cloth (c) still clear water (d) a mirror
18. 18.True or false: a rough wooden board reflects light poorly. (a) False (b) True
19. 19.True or false: a battery cell is not needed for the periscope. (a) True (b) False
20. 20.🛟 You must never point a periscope or a mirror at ___. (a) a tree (b) a wall (c) the Sun (d) a friend’s toy
21. 21.⚖️ 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) how clear the view is (c) the same mirrors
22. 22.🔭 Which of these reflects light well? (a) black cloth (b) a dull brick (c) still clear water (d) dark soil
23. 23.🧺 Which of these is needed for the periscope? (a) a battery cell (b) a balloon (c) a ruler (d) vinegar
24. 24.⚖️ 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
25. 25.🧺 Do we need a balloon for the periscope? (a) needed (b) not needed
26. 26.🧺 Which of these is needed for the periscope? (a) a battery cell (b) an empty juice carton (c) a balloon (d) a magnet
27. 27.🧺 Do we need a magnet for the periscope? (a) not needed (b) needed
28. 28.🔭 Does a dull brick reflect light well or poorly? (a) reflects light well (b) reflects light poorly
29. 29.🧺 Do we need vinegar for the periscope? (a) not needed (b) needed
30. 30.True or false: a shiny steel plate reflects light well. (a) True (b) False
31. 31.⚖️ Fair test — does the angle of the mirrors change how clearly you see? True or false: the same carton is the one thing we change. (a) False (b) True
32. 32.🔭 How many mirrors does a simple periscope use?
33. 33.⚖️ Fair test — does the angle of the mirrors change how clearly you see? Which of these is what we measure? (a) the same carton (b) how clear the view is (c) the same light (d) the angle of the mirrors
34. 34.True or false: yeast is not needed for the periscope. (a) False (b) True
35. 35.True or false: sticky tape is not needed for the periscope. (a) False (b) True
36. 36.True or false: a dull brick reflects light well. (a) True (b) False
37. 37.True or false: yeast is needed for the periscope. (a) True (b) False
38. 38.🔭 How many times does light bounce off a mirror in a simple periscope?
39. 39.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) sticky tape (b) vinegar (c) a pencil (d) a ruler
40. 40.⚖️ Fair test — does the angle of the mirrors change how clearly you see? True or false: the same light is the one thing we change. (a) True (b) False

Free science experiments lessons, practice and worksheets at talentjr.in/science-experiments-for-kids