Periscope STEM Project Worksheet

Science experiments lesson 28: Mirror periscope · Set 328 · 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? What do we do with “the same light”? (a) we keep it the same (b) we measure it (c) we change it
2. 2.🔍 Which is the odd one out? (a) dark soil (b) a mirror (c) aluminium foil (d) still clear water
3. 3.📘 Light bouncing off a mirror is called ___. (a) magnetism (b) refraction (c) reflection (d) evaporation
4. 4.🔭 Does black cloth reflect light well or poorly? (a) reflects light well (b) reflects light poorly
5. 5.🧺 Do we need two small mirrors for the periscope? (a) needed (b) not needed
6. 6.🔭 How many times does light bounce off a mirror in a simple periscope?
7. 7.🔍 Which is the odd one out? (a) black cloth (b) still clear water (c) a mirror (d) a shiny steel plate
8. 8.🔭 Which of these reflects light well? (a) still clear water (b) black cloth (c) a rough wooden board (d) a dull brick
9. 9.🧺 Which of these is not needed for the periscope? (a) an empty juice carton (b) a pencil (c) two small mirrors (d) vinegar
10. 10.🛟 You must never point a periscope or a mirror at ___. (a) a tree (b) the Sun (c) a wall (d) a friend’s toy
11. 11.True or false: turmeric powder is needed for the periscope. (a) True (b) False
12. 12.🔭 Does a shiny steel plate reflect light well or poorly? (a) reflects light well (b) reflects light poorly
13. 13.⚖️ 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
14. 14.🧺 Do we need a pencil for the periscope? (a) not needed (b) needed
15. 15.⚖️ 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
16. 16.⚖️ Fair test — does the angle of the mirrors change how clearly you see? True or false: the angle of the mirrors is kept the same. (a) False (b) True
17. 17.🔮 Predict: you hold a written word up to a mirror. The letters look ___. (a) flipped left to right (b) upside down only (c) in colour (d) much bigger
18. 18.🔍 Which is the odd one out? (a) still clear water (b) aluminium foil (c) a rough wooden board (d) a mirror
19. 19.🔮 Predict: you cover the top mirror with paper. What do you see? (a) only darkness (b) two pictures (c) a rainbow (d) a brighter view
20. 20.⚖️ Fair test — does the angle of the mirrors change how clearly you see? True or false: how clear the view is is what we measure. (a) True (b) False
21. 21.🔭 Does a dull brick reflect light well or poorly? (a) reflects light poorly (b) reflects light well
22. 22.🔮 Predict: you make the periscope tube twice as tall. You can see over ___. (a) taller walls (b) the ground (c) only short walls (d) nothing at all
23. 23.🔍 Which is the odd one out? (a) a dull brick (b) a mirror (c) a shiny steel plate (d) still clear water
24. 24.True or false: a balloon is needed for the periscope. (a) False (b) True
25. 25.⚖️ 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 mirrors (b) the angle of the mirrors (c) the same carton (d) the object we look at
26. 26.⚖️ Fair test — does the angle of the mirrors change how clearly you see? Which of these is what we measure? (a) how clear the view is (b) the same light (c) the same mirrors (d) the angle of the mirrors
27. 27.🧺 Do we need yeast for the periscope? (a) needed (b) not needed
28. 28.⚖️ 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 change it (b) we measure it (c) we keep it the same
29. 29.🧺 Which of these is not needed for the periscope? (a) two small mirrors (b) a ruler (c) a balloon (d) sticky tape
30. 30.🛟 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
31. 31.🧺 Which of these is needed for the periscope? (a) an empty juice carton (b) a battery cell (c) a magnet (d) a balloon
32. 32.True or false: a dull brick reflects light well. (a) False (b) True
33. 33.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) an empty juice carton (b) a ruler (c) a pencil (d) yeast
34. 34.🔍 Which is the odd one out? (a) a dull brick (b) a shiny steel plate (c) dark soil (d) black cloth
35. 35.🔭 What does a periscope let you do? (a) see over a wall (b) see in the dark (c) see germs (d) hear far sounds
36. 36.🔭 Does a rough wooden board reflect light well or poorly? (a) reflects light poorly (b) reflects light well
37. 37.True or false: a pencil is needed for the periscope. (a) True (b) False
38. 38.True or false: dark soil reflects light well. (a) True (b) False
39. 39.⚖️ Fair test — does the angle of the mirrors change how clearly you see? What do we do with “the same carton”? (a) we measure it (b) we change it (c) we keep it the same
40. 40.🔭 At what angle are the mirrors set in a simple periscope? (a) 180 degrees (b) 10 degrees (c) 90 degrees (d) 45 degrees

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