Periscope STEM Project Worksheet

Science experiments lesson 28: Mirror periscope · Set 278 · 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 of these reflects light poorly? (a) aluminium foil (b) a mirror (c) a dull brick (d) still clear water
2. 2.⚖️ 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 change it (c) we measure it
3. 3.⚖️ 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 angle of the mirrors (c) the same mirrors
4. 4.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) two small mirrors (b) an empty juice carton (c) sticky tape (d) a battery cell
5. 5.⚖️ 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
6. 6.🧺 Which of these is needed for the periscope? (a) vinegar (b) two small mirrors (c) a battery cell (d) a balloon
7. 7.True or false: an empty juice carton is not needed for the periscope. (a) True (b) False
8. 8.🔮 Predict: you make the periscope tube twice as tall. You can see over ___. (a) only short walls (b) nothing at all (c) the ground (d) taller walls
9. 9.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) sticky tape (b) a magnet (c) a ruler (d) two small mirrors
10. 10.🔭 Does a rough wooden board reflect light well or poorly? (a) reflects light well (b) reflects light poorly
11. 11.🛟 You must never point a periscope or a mirror at ___. (a) a tree (b) a friend’s toy (c) the Sun (d) a wall
12. 12.True or false: a shiny steel plate reflects light well. (a) False (b) True
13. 13.🔭 How many times does light bounce off a mirror in a simple periscope?
14. 14.🔍 Which is the odd one out? (a) a dull brick (b) aluminium foil (c) still clear water (d) a mirror
15. 15.True or false: dark soil reflects light well. (a) True (b) False
16. 16.⚖️ Fair test — does the angle of the mirrors change how clearly you see? What do we do with “the same mirrors”? (a) we measure it (b) we keep it the same (c) we change it
17. 17.True or false: vinegar is needed for the periscope. (a) True (b) False
18. 18.True or false: sticky tape is not needed for the periscope. (a) False (b) True
19. 19.🧺 Which of these is needed for the periscope? (a) sticky tape (b) yeast (c) a magnet (d) vinegar
20. 20.🔭 Does a mirror reflect light well or poorly? (a) reflects light poorly (b) reflects light well
21. 21.True or false: a mirror reflects light poorly. (a) False (b) True
22. 22.⚖️ 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 angle of the mirrors (c) the object we look at
23. 23.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) sticky tape (b) a ruler (c) a balloon (d) an empty juice carton
24. 24.🔭 Which of these reflects light well? (a) a dull brick (b) a mirror (c) dark soil (d) a rough wooden board
25. 25.True or false: a ruler is needed for the periscope. (a) True (b) False
26. 26.⚖️ 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
27. 27.🛟 Who should cut the holes in the juice carton? (a) a friend who is running (b) a grown-up (c) nobody needs to (d) the youngest child
28. 28.🔭 At what angle are the mirrors set in a simple periscope? (a) 45 degrees (b) 90 degrees (c) 10 degrees (d) 180 degrees
29. 29.True or false: a balloon is needed for the periscope. (a) True (b) False
30. 30.🧺 Which of these is needed for the periscope? (a) a battery cell (b) a pencil (c) yeast (d) a magnet
31. 31.⚖️ Fair test — does the angle of the mirrors change how clearly you see? True or false: the same carton is what we measure. (a) True (b) False
32. 32.🧺 Which of these is needed for the periscope? (a) a ruler (b) a magnet (c) vinegar (d) a battery cell
33. 33.🔭 Does still clear water reflect light well or poorly? (a) reflects light well (b) reflects light poorly
34. 34.🧺 Do we need a battery cell for the periscope? (a) needed (b) not needed
35. 35.🔮 Predict: you hold a written word up to a mirror. The letters look ___. (a) flipped left to right (b) upside down only (c) much bigger (d) in colour
36. 36.⚖️ Fair test — does the angle of the mirrors change how clearly you see? Which of these is the one thing we change? (a) the same light (b) the object we look at (c) the angle of the mirrors (d) the same carton
37. 37.⚖️ Fair test — does the angle of the mirrors change how clearly you see? Which of these is kept the same? (a) the same light (b) how clear the view is (c) the angle of the mirrors
38. 38.True or false: a dull brick reflects light poorly. (a) False (b) True
39. 39.🔮 Predict: you cover the top mirror with paper. What do you see? (a) a rainbow (b) a brighter view (c) only darkness (d) two pictures
40. 40.True or false: dark soil reflects light poorly. (a) False (b) True

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