Periscope STEM Project Worksheet

Science experiments lesson 28: Mirror periscope · Set 559 · 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.🔭 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
2. 2.🔭 How many mirrors does a simple periscope use?
3. 3.🔭 Does aluminium foil reflect light well or poorly? (a) reflects light well (b) reflects light poorly
4. 4.🛟 Which mirrors are safest for a children’s periscope? (a) loose glass panes (b) big wall mirrors (c) plastic safety mirrors (d) broken glass bits
5. 5.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) an empty juice carton (b) two small mirrors (c) a pencil (d) vinegar
6. 6.True or false: a shiny steel plate reflects light well. (a) False (b) True
7. 7.⚖️ 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 measure it (b) we keep it the same (c) we change it
8. 8.⚖️ Fair test — does the angle of the mirrors change how clearly you see? What do we do with “the same carton”? (a) we change it (b) we measure it (c) we keep it the same
9. 9.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) sticky tape (b) a ruler (c) two small mirrors (d) a balloon
10. 10.True or false: sticky tape is not needed for the periscope. (a) False (b) True
11. 11.🛟 Who should cut the holes in the juice carton? (a) nobody needs to (b) a grown-up (c) a friend who is running (d) the youngest child
12. 12.🧺 Do we need vinegar for the periscope? (a) needed (b) not needed
13. 13.True or false: a ruler is not needed for the periscope. (a) False (b) True
14. 14.🔭 How many times does light bounce off a mirror in a simple periscope?
15. 15.🔍 Which is the odd one out? (a) aluminium foil (b) a shiny steel plate (c) black cloth (d) a mirror
16. 16.🧺 Do we need an empty juice carton for the periscope? (a) not needed (b) needed
17. 17.True or false: still clear water reflects light well. (a) True (b) False
18. 18.🔭 Does a rough wooden board reflect light well or poorly? (a) reflects light poorly (b) reflects light well
19. 19.⚖️ Fair test — does the angle of the mirrors change how clearly you see? Which of these is the one thing we change? (a) the object we look at (b) how clear the view is (c) the angle of the mirrors (d) the same mirrors
20. 20.🧺 Do we need a ruler for the periscope? (a) not needed (b) needed
21. 21.🧺 Which of these is needed for the periscope? (a) a balloon (b) yeast (c) turmeric powder (d) two small mirrors
22. 22.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) sticky tape (b) a battery cell (c) an empty juice carton (d) two small mirrors
23. 23.⚖️ 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
24. 24.True or false: a pencil is not needed for the periscope. (a) False (b) True
25. 25.🔭 Does dark soil reflect light well or poorly? (a) reflects light poorly (b) reflects light well
26. 26.🔮 Predict: you cover the top mirror with paper. What do you see? (a) only darkness (b) a brighter view (c) a rainbow (d) two pictures
27. 27.⚖️ 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 change it (c) we measure it
28. 28.⚖️ Fair test — does the angle of the mirrors change how clearly you see? True or false: the same light is what we measure. (a) False (b) True
29. 29.🧺 Which of these is not needed for the periscope? (a) a ruler (b) sticky tape (c) a battery cell (d) a pencil
30. 30.🧺 Which of these is needed for the periscope? (a) a balloon (b) vinegar (c) turmeric powder (d) sticky tape
31. 31.🧺 Do we need two small mirrors for the periscope? (a) not needed (b) needed
32. 32.🛟 You must never point a periscope or a mirror at ___. (a) the Sun (b) a tree (c) a wall (d) a friend’s toy
33. 33.🔍 Which is the odd one out? (a) a dull brick (b) black cloth (c) a rough wooden board (d) aluminium foil
34. 34.🔭 Which of these reflects light poorly? (a) still clear water (b) aluminium foil (c) a shiny steel plate (d) black cloth
35. 35.🧺 Do we need a balloon for the periscope? (a) not needed (b) needed
36. 36.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) two small mirrors (b) a ruler (c) an empty juice carton (d) yeast
37. 37.🧺 Which of these is needed for the periscope? (a) yeast (b) a battery cell (c) a pencil (d) a magnet
38. 38.🔭 Which of these reflects light well? (a) dark soil (b) still clear water (c) black cloth (d) a rough wooden board
39. 39.🧺 Which of these is not needed for the periscope? (a) a pencil (b) a ruler (c) sticky tape (d) a balloon
40. 40.🔍 Which is the odd one out? (a) a shiny steel plate (b) aluminium foil (c) a rough wooden board (d) still clear water

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