Periscope STEM Project Worksheet

Science experiments lesson 28: Mirror periscope · Set 44 · 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.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) a ruler (b) turmeric powder (c) a pencil (d) an empty juice carton
2. 2.🧺 Which of these is not needed for the periscope? (a) a pencil (b) a ruler (c) sticky tape (d) turmeric powder
3. 3.🔭 Who uses a periscope to look above the water? (a) a farmer (b) a submarine crew (c) a baker (d) a pilot in a plane
4. 4.🔍 Which is the odd one out? (a) a shiny steel plate (b) still clear water (c) a rough wooden board (d) a mirror
5. 5.⚖️ Fair test — does the angle of the mirrors change how clearly you see? Which of these is the one thing we change? (a) how clear the view is (b) the same carton (c) the angle of the mirrors (d) the same mirrors
6. 6.🛟 Which mirrors are safest for a children’s periscope? (a) broken glass bits (b) plastic safety mirrors (c) big wall mirrors (d) loose glass panes
7. 7.🔭 How many times does light bounce off a mirror in a simple periscope?
8. 8.True or false: a rough wooden board reflects light well. (a) False (b) True
9. 9.🔭 Does a shiny steel plate reflect light well or poorly? (a) reflects light poorly (b) reflects light well
10. 10.⚖️ 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
11. 11.🔭 Does a mirror reflect light well or poorly? (a) reflects light poorly (b) reflects light well
12. 12.⚖️ Fair test — does the angle of the mirrors change how clearly you see? Which of these is what we measure? (a) the object we look at (b) how clear the view is (c) the angle of the mirrors (d) the same light
13. 13.🧺 Which of these is not needed for the periscope? (a) an empty juice carton (b) sticky tape (c) a pencil (d) yeast
14. 14.🔭 How many mirrors does a simple periscope use?
15. 15.🧺 Do we need a ruler for the periscope? (a) not needed (b) needed
16. 16.🔭 Which of these reflects light well? (a) a dull brick (b) a rough wooden board (c) a mirror (d) black cloth
17. 17.🔭 At what angle are the mirrors set in a simple periscope? (a) 180 degrees (b) 45 degrees (c) 90 degrees (d) 10 degrees
18. 18.⚖️ 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
19. 19.🛟 You must never point a periscope or a mirror at ___. (a) a tree (b) a friend’s toy (c) the Sun (d) a wall
20. 20.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) an empty juice carton (b) two small mirrors (c) a ruler (d) vinegar
21. 21.🧺 Which of these is needed for the periscope? (a) a balloon (b) vinegar (c) turmeric powder (d) a pencil
22. 22.🔮 Predict: you make the periscope tube twice as tall. You can see over ___. (a) nothing at all (b) taller walls (c) only short walls (d) the ground
23. 23.🧺 Do we need yeast for the periscope? (a) needed (b) not needed
24. 24.🔭 Which of these reflects light well? (a) a shiny steel plate (b) a rough wooden board (c) a dull brick (d) black cloth
25. 25.True or false: a shiny steel plate reflects light poorly. (a) False (b) True
26. 26.🧺 Which of these is needed for the periscope? (a) two small mirrors (b) turmeric powder (c) a balloon (d) a battery cell
27. 27.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) two small mirrors (b) a magnet (c) sticky tape (d) an empty juice carton
28. 28.🧺 Do we need sticky tape for the periscope? (a) not needed (b) needed
29. 29.🛟 Who should cut the holes in the juice carton? (a) a grown-up (b) the youngest child (c) nobody needs to (d) a friend who is running
30. 30.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) a pencil (b) sticky tape (c) a ruler (d) yeast
31. 31.🔍 Which is the odd one out? (a) aluminium foil (b) a shiny steel plate (c) still clear water (d) black cloth
32. 32.🔭 Does a dull brick reflect light well or poorly? (a) reflects light poorly (b) reflects light well
33. 33.🔍 Which is the odd one out? (a) dark soil (b) aluminium foil (c) a rough wooden board (d) a dull brick
34. 34.🔭 Which of these reflects light poorly? (a) still clear water (b) a mirror (c) a shiny steel plate (d) a rough wooden board
35. 35.⚖️ Fair test — does the angle of the mirrors change how clearly you see? True or false: the same carton is what we measure. (a) True (b) False
36. 36.⚖️ 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 object we look at
37. 37.🔭 Does a rough wooden board reflect light well or poorly? (a) reflects light well (b) reflects light poorly
38. 38.📘 Light bouncing off a mirror is called ___. (a) refraction (b) evaporation (c) magnetism (d) reflection
39. 39.True or false: a balloon is not needed for the periscope. (a) False (b) True
40. 40.⚖️ Fair test — does the angle of the mirrors change how clearly you see? True or false: the angle of the mirrors is the one thing we change. (a) True (b) False

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