Periscope STEM Project Worksheet

Science experiments lesson 28: Mirror periscope · Set 37 · 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 is not needed for the periscope? (a) two small mirrors (b) a pencil (c) a magnet (d) sticky tape
2. 2.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) two small mirrors (b) vinegar (c) an empty juice carton (d) sticky tape
3. 3.🧺 Which of these is not needed for the periscope? (a) turmeric powder (b) sticky tape (c) an empty juice carton (d) a pencil
4. 4.🔭 Who uses a periscope to look above the water? (a) a farmer (b) a baker (c) a submarine crew (d) a pilot in a plane
5. 5.🔭 Which of these reflects light well? (a) black cloth (b) aluminium foil (c) a dull brick (d) dark soil
6. 6.🔭 Which of these reflects light poorly? (a) aluminium foil (b) still clear water (c) a mirror (d) a dull brick
7. 7.🧺 Do we need a ruler for the periscope? (a) not needed (b) needed
8. 8.🔭 How many times does light bounce off a mirror in a simple periscope?
9. 9.🔭 How many mirrors does a simple periscope use?
10. 10.🔭 Which of these reflects light poorly? (a) aluminium foil (b) black cloth (c) a shiny steel plate (d) a mirror
11. 11.True or false: a mirror reflects light well. (a) True (b) False
12. 12.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) a battery cell (b) an empty juice carton (c) a ruler (d) sticky tape
13. 13.🧺 Which of these is needed for the periscope? (a) a balloon (b) an empty juice carton (c) yeast (d) turmeric powder
14. 14.🔍 Which is the odd one out? (a) a mirror (b) still clear water (c) black cloth (d) aluminium foil
15. 15.⚖️ 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 keep it the same (b) we measure it (c) we change it
16. 16.True or false: a dull brick reflects light well. (a) True (b) False
17. 17.⚖️ 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 object we look at (c) the angle of the mirrors
18. 18.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) a ruler (b) sticky tape (c) two small mirrors (d) yeast
19. 19.True or false: an empty juice carton is not needed for the periscope. (a) False (b) True
20. 20.True or false: yeast is needed for the periscope. (a) False (b) True
21. 21.🧺 Which of these is not needed for the periscope? (a) sticky tape (b) two small mirrors (c) yeast (d) an empty juice carton
22. 22.⚖️ 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
23. 23.🔍 Which is the odd one out? (a) black cloth (b) a rough wooden board (c) a shiny steel plate (d) a dull brick
24. 24.🔭 Which of these reflects light well? (a) still clear water (b) dark soil (c) a dull brick (d) a rough wooden board
25. 25.🧺 Which of these is needed for the periscope? (a) turmeric powder (b) a battery cell (c) a balloon (d) a pencil
26. 26.🔮 Predict: you cover the top mirror with paper. What do you see? (a) a brighter view (b) a rainbow (c) two pictures (d) only darkness
27. 27.🔭 Which of these reflects light well? (a) dark soil (b) black cloth (c) a rough wooden board (d) a mirror
28. 28.📘 Light bouncing off a mirror is called ___. (a) refraction (b) evaporation (c) reflection (d) magnetism
29. 29.🔮 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
30. 30.⚖️ 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
31. 31.🔭 Does a dull brick reflect light well or poorly? (a) reflects light well (b) reflects light poorly
32. 32.⚖️ Fair test — does the angle of the mirrors change how clearly you see? What do we do with “the same light”? (a) we keep it the same (b) we change it (c) we measure it
33. 33.🧺 Do we need a balloon for the periscope? (a) not needed (b) needed
34. 34.🔭 Does dark soil reflect light well or poorly? (a) reflects light poorly (b) reflects light well
35. 35.🧺 Which of these is needed for the periscope? (a) a balloon (b) sticky tape (c) turmeric powder (d) vinegar
36. 36.⚖️ Fair test — does the angle of the mirrors change how clearly you see? True or false: the same mirrors is the one thing we change. (a) True (b) False
37. 37.⚖️ 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
38. 38.🔍 Which is the odd one out? (a) a dull brick (b) aluminium foil (c) dark soil (d) a rough wooden board
39. 39.🔭 At what angle are the mirrors set in a simple periscope? (a) 45 degrees (b) 180 degrees (c) 90 degrees (d) 10 degrees
40. 40.🔍 Which is the odd one out? (a) still clear water (b) dark soil (c) black cloth (d) a dull brick

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