Periscope STEM Project Worksheet

Science experiments lesson 28: Mirror periscope · Set 583 · 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.🔮 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
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 keep it the same (b) we measure it (c) we change it
3. 3.True or false: a shiny steel plate reflects light well. (a) False (b) True
4. 4.🔭 Does a mirror reflect light well or poorly? (a) reflects light poorly (b) reflects light well
5. 5.🔭 Does black cloth reflect light well or poorly? (a) reflects light poorly (b) reflects light well
6. 6.🔍 Which is the odd one out? (a) dark soil (b) a mirror (c) aluminium foil (d) a shiny steel plate
7. 7.🛟 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
8. 8.🔭 Which of these reflects light well? (a) a rough wooden board (b) a dull brick (c) dark soil (d) a shiny steel plate
9. 9.⚖️ 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 keep it the same (b) we measure it (c) we change it
10. 10.🔭 At what angle are the mirrors set in a simple periscope? (a) 10 degrees (b) 45 degrees (c) 90 degrees (d) 180 degrees
11. 11.🔭 Which of these reflects light well? (a) a mirror (b) a rough wooden board (c) black cloth (d) dark soil
12. 12.True or false: sticky tape is not needed for the periscope. (a) True (b) False
13. 13.🔭 What does a periscope let you do? (a) see in the dark (b) hear far sounds (c) see germs (d) see over a wall
14. 14.⚖️ 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 carton
15. 15.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) a battery cell (b) a ruler (c) two small mirrors (d) a pencil
16. 16.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) a balloon (b) an empty juice carton (c) a ruler (d) sticky tape
17. 17.📘 Light bouncing off a mirror is called ___. (a) refraction (b) evaporation (c) reflection (d) magnetism
18. 18.⚖️ 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 change it (c) we measure it
19. 19.True or false: still clear water reflects light poorly. (a) False (b) True
20. 20.🔭 Which of these reflects light well? (a) aluminium foil (b) dark soil (c) a dull brick (d) black cloth
21. 21.🛟 You must never point a periscope or a mirror at ___. (a) a wall (b) a tree (c) the Sun (d) a friend’s toy
22. 22.True or false: dark soil reflects light well. (a) False (b) True
23. 23.⚖️ 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 change it (b) we measure it (c) we keep it the same
24. 24.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) turmeric powder (b) sticky tape (c) an empty juice carton (d) two small mirrors
25. 25.True or false: a magnet is not needed for the periscope. (a) True (b) False
26. 26.🧺 Do we need sticky tape for the periscope? (a) not needed (b) needed
27. 27.True or false: turmeric powder is needed for the periscope. (a) True (b) False
28. 28.🔮 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
29. 29.⚖️ Fair test — does the angle of the mirrors change how clearly you see? Which of these is the one thing we change? (a) the object we look at (b) the angle of the mirrors (c) the same mirrors (d) the same carton
30. 30.🔭 Who uses a periscope to look above the water? (a) a pilot in a plane (b) a baker (c) a submarine crew (d) a farmer
31. 31.True or false: an empty juice carton is not needed for the periscope. (a) True (b) False
32. 32.🧺 Which of these is needed for the periscope? (a) a magnet (b) a balloon (c) yeast (d) a ruler
33. 33.🔍 Which is the odd one out? (a) still clear water (b) a rough wooden board (c) aluminium foil (d) a shiny steel plate
34. 34.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) sticky tape (b) two small mirrors (c) yeast (d) an empty juice carton
35. 35.🔭 How many times does light bounce off a mirror in a simple periscope?
36. 36.⚖️ 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) the angle of the mirrors (c) how clear the view is
37. 37.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) two small mirrors (b) a ruler (c) vinegar (d) an empty juice carton
38. 38.🔭 Does aluminium foil reflect light well or poorly? (a) reflects light poorly (b) reflects light well
39. 39.True or false: a shiny steel plate reflects light poorly. (a) True (b) False
40. 40.True or false: aluminium foil reflects light well. (a) True (b) False

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