Periscope STEM Project Worksheet

Science experiments lesson 28: Mirror periscope · Set 707 · 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 needed for the periscope? (a) a magnet (b) turmeric powder (c) vinegar (d) two small mirrors
2. 2.🔍 Which is the odd one out? (a) still clear water (b) a dull brick (c) a mirror (d) a shiny steel plate
3. 3.🔮 Predict: you hold a written word up to a mirror. The letters look ___. (a) in colour (b) upside down only (c) much bigger (d) flipped left to right
4. 4.🔭 Which of these reflects light well? (a) a rough wooden board (b) aluminium foil (c) black cloth (d) a dull brick
5. 5.⚖️ Fair test — does the angle of the mirrors change how clearly you see? True or false: how clear the view is is kept the same. (a) True (b) False
6. 6.True or false: a ruler is needed for the periscope. (a) True (b) False
7. 7.📘 Light bouncing off a mirror is called ___. (a) reflection (b) refraction (c) evaporation (d) magnetism
8. 8.⚖️ 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 angle of the mirrors (c) the object we look at (d) the same carton
9. 9.⚖️ 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 keep it the same (c) we measure it
10. 10.🔮 Predict: you cover the top mirror with paper. What do you see? (a) a brighter view (b) only darkness (c) a rainbow (d) two pictures
11. 11.🔮 Predict: you make the periscope tube twice as tall. You can see over ___. (a) nothing at all (b) the ground (c) taller walls (d) only short walls
12. 12.True or false: a magnet is needed for the periscope. (a) True (b) False
13. 13.True or false: vinegar is needed for the periscope. (a) False (b) True
14. 14.⚖️ Fair test — does the angle of the mirrors change how clearly you see? True or false: the object we look at is the one thing we change. (a) False (b) True
15. 15.🧺 Do we need two small mirrors for the periscope? (a) not needed (b) needed
16. 16.🧺 Which of these is needed for the periscope? (a) a pencil (b) turmeric powder (c) a balloon (d) a battery cell
17. 17.⚖️ 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
18. 18.True or false: a dull brick reflects light well. (a) True (b) False
19. 19.🔭 How many mirrors does a simple periscope use?
20. 20.⚖️ 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
21. 21.🛟 Which mirrors are safest for a children’s periscope? (a) broken glass bits (b) loose glass panes (c) plastic safety mirrors (d) big wall mirrors
22. 22.⚖️ Fair test — does the angle of the mirrors change how clearly you see? Which of these is what we measure? (a) the same light (b) how clear the view is (c) the same mirrors (d) the object we look at
23. 23.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) a balloon (b) sticky tape (c) an empty juice carton (d) two small mirrors
24. 24.🔭 What does a periscope let you do? (a) hear far sounds (b) see over a wall (c) see in the dark (d) see germs
25. 25.🧺 Do we need a battery cell for the periscope? (a) needed (b) not needed
26. 26.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) sticky tape (b) a ruler (c) a magnet (d) an empty juice carton
27. 27.🔭 Does black cloth reflect light well or poorly? (a) reflects light well (b) reflects light poorly
28. 28.True or false: dark soil reflects light poorly. (a) False (b) True
29. 29.⚖️ Fair test — does the angle of the mirrors change how clearly you see? What do we do with “the same light”? (a) we change it (b) we keep it the same (c) we measure it
30. 30.⚖️ 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
31. 31.🔭 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
32. 32.🧺 Which of these is not needed for the periscope? (a) an empty juice carton (b) sticky tape (c) vinegar (d) two small mirrors
33. 33.⚖️ Fair test — does the angle of the mirrors change how clearly you see? Which of these is kept the same? (a) the same mirrors (b) how clear the view is (c) the angle of the mirrors
34. 34.🔭 Does a dull brick reflect light well or poorly? (a) reflects light well (b) reflects light poorly
35. 35.True or false: aluminium foil reflects light poorly. (a) False (b) True
36. 36.🧺 Do we need turmeric powder for the periscope? (a) not needed (b) needed
37. 37.True or false: a ruler is not needed for the periscope. (a) True (b) False
38. 38.🔍 Which is the odd one out? (a) a rough wooden board (b) dark soil (c) black cloth (d) a shiny steel plate
39. 39.🔭 Which of these reflects light well? (a) black cloth (b) dark soil (c) a mirror (d) a rough wooden board
40. 40.🧺 Do we need a balloon for the periscope? (a) needed (b) not needed

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