Periscope STEM Project Worksheet

Science experiments lesson 28: Mirror periscope · Set 266 · 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.⚖️ 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) True (b) False
2. 2.🔮 Predict: you hold a written word up to a mirror. The letters look ___. (a) in colour (b) much bigger (c) flipped left to right (d) upside down only
3. 3.🧺 Do we need turmeric powder for the periscope? (a) needed (b) not needed
4. 4.True or false: vinegar is needed for the periscope. (a) True (b) False
5. 5.⚖️ 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
6. 6.🔮 Predict: you make the periscope tube twice as tall. You can see over ___. (a) taller walls (b) nothing at all (c) the ground (d) only short walls
7. 7.True or false: two small mirrors is not needed for the periscope. (a) True (b) False
8. 8.🧺 Which of these is not needed for the periscope? (a) an empty juice carton (b) sticky tape (c) a pencil (d) a balloon
9. 9.📘 Light bouncing off a mirror is called ___. (a) refraction (b) evaporation (c) reflection (d) magnetism
10. 10.True or false: a magnet is needed for the periscope. (a) True (b) False
11. 11.🔍 Which is the odd one out? (a) black cloth (b) a shiny steel plate (c) a rough wooden board (d) a dull brick
12. 12.⚖️ 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) True (b) False
13. 13.🔭 How many times does light bounce off a mirror in a simple periscope?
14. 14.🔭 Which of these reflects light poorly? (a) aluminium foil (b) a rough wooden board (c) a mirror (d) a shiny steel plate
15. 15.🔭 Which of these reflects light poorly? (a) aluminium foil (b) still clear water (c) a shiny steel plate (d) a dull brick
16. 16.⚖️ 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
17. 17.🧺 Do we need two small mirrors for the periscope? (a) not needed (b) needed
18. 18.True or false: a shiny steel plate reflects light poorly. (a) False (b) True
19. 19.True or false: a ruler is not needed for the periscope. (a) True (b) False
20. 20.🧺 Which of these is needed for the periscope? (a) an empty juice carton (b) yeast (c) a balloon (d) turmeric powder
21. 21.🔭 Who uses a periscope to look above the water? (a) a submarine crew (b) a baker (c) a pilot in a plane (d) a farmer
22. 22.⚖️ Fair test — does the angle of the mirrors change how clearly you see? What do we do with “the same light”? (a) we measure it (b) we change it (c) we keep it the same
23. 23.🛟 You must never point a periscope or a mirror at ___. (a) the Sun (b) a friend’s toy (c) a tree (d) a wall
24. 24.🔍 Which is the odd one out? (a) still clear water (b) black cloth (c) a rough wooden board (d) dark soil
25. 25.🔭 How many mirrors does a simple periscope use?
26. 26.🔍 Which is the odd one out? (a) dark soil (b) black cloth (c) a rough wooden board (d) aluminium foil
27. 27.True or false: a balloon is needed for the periscope. (a) True (b) False
28. 28.⚖️ 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) False (b) True
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 same carton (b) how clear the view is (c) the angle of the mirrors (d) the same light
30. 30.🔍 Which is the odd one out? (a) a shiny steel plate (b) a mirror (c) still clear water (d) a dull brick
31. 31.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) two small mirrors (b) an empty juice carton (c) a battery cell (d) a ruler
32. 32.🔍 Which is the odd one out? (a) a mirror (b) black cloth (c) a shiny steel plate (d) aluminium foil
33. 33.🧺 Which of these is needed for the periscope? (a) turmeric powder (b) two small mirrors (c) a magnet (d) a balloon
34. 34.🧺 Do we need sticky tape for the periscope? (a) needed (b) not needed
35. 35.⚖️ Fair test — does the angle of the mirrors change how clearly you see? True or false: the same carton is kept the same. (a) False (b) True
36. 36.🔭 Does aluminium foil reflect light well or poorly? (a) reflects light poorly (b) reflects light well
37. 37.⚖️ Fair test — does the angle of the mirrors change how clearly you see? True or false: the same light is kept the same. (a) False (b) True
38. 38.🔍 Which is the odd one out? (a) aluminium foil (b) a shiny steel plate (c) a mirror (d) a rough wooden board
39. 39.🔭 Why must the two mirrors face each other and be parallel? (a) so it can float (b) to make it heavy (c) so light reaches the eye (d) so it looks shiny
40. 40.True or false: black cloth reflects light well. (a) False (b) True

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