Periscope STEM Project Worksheet

Science experiments lesson 28: Mirror periscope · Set 698 · 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) sticky tape (b) a battery cell (c) an empty juice carton (d) a ruler
2. 2.⚖️ 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 measure it (c) we change it
3. 3.🔮 Predict: you make the periscope tube twice as tall. You can see over ___. (a) nothing at all (b) the ground (c) only short walls (d) taller walls
4. 4.True or false: a shiny steel plate reflects light poorly. (a) False (b) True
5. 5.🔮 Predict: you hold a written word up to a mirror. The letters look ___. (a) in colour (b) much bigger (c) upside down only (d) flipped left to right
6. 6.🔮 Predict: you cover the top mirror with paper. What do you see? (a) a rainbow (b) only darkness (c) a brighter view (d) two pictures
7. 7.⚖️ Fair test — does the angle of the mirrors change how clearly you see? True or false: the same light is kept the same. (a) True (b) False
8. 8.🔭 How many mirrors does a simple periscope use?
9. 9.🔭 What does a periscope let you do? (a) see over a wall (b) see germs (c) see in the dark (d) hear far sounds
10. 10.🧺 Which of these is needed for the periscope? (a) an empty juice carton (b) vinegar (c) turmeric powder (d) a balloon
11. 11.🛟 Who should cut the holes in the juice carton? (a) the youngest child (b) a friend who is running (c) nobody needs to (d) a grown-up
12. 12.🔭 At what angle are the mirrors set in a simple periscope? (a) 10 degrees (b) 45 degrees (c) 180 degrees (d) 90 degrees
13. 13.🔭 Does still clear water reflect light well or poorly? (a) reflects light well (b) reflects light poorly
14. 14.⚖️ 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 carton
15. 15.🔭 How many times does light bounce off a mirror in a simple periscope?
16. 16.True or false: a shiny steel plate reflects light well. (a) True (b) False
17. 17.🔍 Which is the odd one out? (a) black cloth (b) aluminium foil (c) still clear water (d) a shiny steel plate
18. 18.True or false: aluminium foil reflects light poorly. (a) True (b) False
19. 19.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) a ruler (b) two small mirrors (c) sticky tape (d) a balloon
20. 20.🔭 Which of these reflects light poorly? (a) a mirror (b) dark soil (c) still clear water (d) aluminium foil
21. 21.⚖️ 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) the angle of the mirrors (c) the same mirrors (d) the same light
22. 22.🔍 Which is the odd one out? (a) a mirror (b) a shiny steel plate (c) aluminium foil (d) a dull brick
23. 23.⚖️ 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 change it (c) we measure it
24. 24.🔭 Does black cloth reflect light well or poorly? (a) reflects light well (b) reflects light poorly
25. 25.⚖️ 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
26. 26.🛟 Which mirrors are safest for a children’s periscope? (a) big wall mirrors (b) plastic safety mirrors (c) loose glass panes (d) broken glass bits
27. 27.⚖️ 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 same mirrors (c) the angle of the mirrors
28. 28.🧺 Do we need a battery cell for the periscope? (a) not needed (b) needed
29. 29.🧺 Do we need yeast for the periscope? (a) needed (b) not needed
30. 30.True or false: an empty juice carton is not needed for the periscope. (a) True (b) False
31. 31.🔭 Which of these reflects light well? (a) black cloth (b) dark soil (c) a dull brick (d) aluminium foil
32. 32.🔭 Which of these reflects light well? (a) a dull brick (b) a rough wooden board (c) black cloth (d) a shiny steel plate
33. 33.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) a ruler (b) a magnet (c) two small mirrors (d) an empty juice carton
34. 34.True or false: dark soil reflects light well. (a) True (b) False
35. 35.🔭 Which of these reflects light poorly? (a) a dull brick (b) a shiny steel plate (c) aluminium foil (d) a mirror
36. 36.True or false: black cloth reflects light poorly. (a) False (b) True
37. 37.True or false: an empty juice carton is needed for the periscope. (a) False (b) True
38. 38.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) vinegar (b) a ruler (c) a pencil (d) an empty juice carton
39. 39.🔭 Which of these reflects light well? (a) a rough wooden board (b) black cloth (c) a dull brick (d) a mirror
40. 40.🛟 You must never point a periscope or a mirror at ___. (a) a tree (b) the Sun (c) a friend’s toy (d) a wall

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