Periscope STEM Project Worksheet

Science experiments lesson 28: Mirror periscope · Set 264 · 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.True or false: a battery cell is not needed for the periscope. (a) False (b) True
2. 2.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) a ruler (b) a pencil (c) a battery cell (d) two small mirrors
3. 3.True or false: a mirror reflects light poorly. (a) True (b) False
4. 4.⚖️ Fair test — does the angle of the mirrors change how clearly you see? True or false: the object we look at is what we measure. (a) False (b) True
5. 5.🔍 Which is the odd one out? (a) aluminium foil (b) a mirror (c) a shiny steel plate (d) a dull brick
6. 6.⚖️ 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
7. 7.🔭 Which of these reflects light well? (a) black cloth (b) a mirror (c) dark soil (d) a dull brick
8. 8.🔭 How many times does light bounce off a mirror in a simple periscope?
9. 9.🧺 Do we need vinegar for the periscope? (a) not needed (b) needed
10. 10.🔭 Does a rough wooden board reflect light well or poorly? (a) reflects light poorly (b) reflects light well
11. 11.⚖️ 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 measure it (c) we change it
12. 12.🧺 Which of these is needed for the periscope? (a) a battery cell (b) yeast (c) vinegar (d) two small mirrors
13. 13.⚖️ 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 change it (c) we measure it
14. 14.🧺 Which of these is needed for the periscope? (a) yeast (b) an empty juice carton (c) turmeric powder (d) a magnet
15. 15.⚖️ 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 same light (c) the angle of the mirrors (d) the same carton
16. 16.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) vinegar (b) an empty juice carton (c) a ruler (d) a pencil
17. 17.🧺 Do we need an empty juice carton for the periscope? (a) not needed (b) needed
18. 18.🧺 Do we need a magnet for the periscope? (a) needed (b) not needed
19. 19.⚖️ 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 measure it (b) we keep it the same (c) we change it
20. 20.🔭 Who uses a periscope to look above the water? (a) a baker (b) a farmer (c) a pilot in a plane (d) a submarine crew
21. 21.🧺 Do we need a pencil for the periscope? (a) not needed (b) needed
22. 22.🔭 How many mirrors does a simple periscope use?
23. 23.True or false: a ruler is needed for the periscope. (a) True (b) False
24. 24.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) a balloon (b) a pencil (c) two small mirrors (d) a ruler
25. 25.🔭 Which of these reflects light well? (a) dark soil (b) a dull brick (c) still clear water (d) a rough wooden board
26. 26.⚖️ 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) False (b) True
27. 27.🛟 You must never point a periscope or a mirror at ___. (a) a wall (b) a friend’s toy (c) a tree (d) the Sun
28. 28.⚖️ 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
29. 29.🔍 Which is the odd one out? (a) aluminium foil (b) a mirror (c) dark soil (d) a shiny steel plate
30. 30.🔭 Does a dull brick reflect light well or poorly? (a) reflects light well (b) reflects light poorly
31. 31.🧺 Do we need yeast for the periscope? (a) needed (b) not needed
32. 32.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) turmeric powder (b) a pencil (c) two small mirrors (d) sticky tape
33. 33.⚖️ 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
34. 34.True or false: still clear water reflects light well. (a) False (b) True
35. 35.True or false: a magnet is needed for the periscope. (a) False (b) True
36. 36.⚖️ 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
37. 37.🔍 Which is the odd one out? (a) a dull brick (b) a rough wooden board (c) black cloth (d) aluminium foil
38. 38.🧺 Which of these is not needed for the periscope? (a) a ruler (b) two small mirrors (c) vinegar (d) an empty juice carton
39. 39.🧺 Which of these is not needed for the periscope? (a) sticky tape (b) a ruler (c) two small mirrors (d) yeast
40. 40.⚖️ Fair test — does the angle of the mirrors change how clearly you see? True or false: how clear the view is is the one thing we change. (a) False (b) True

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