Periscope STEM Project Worksheet

Science experiments lesson 28: Mirror periscope · Set 365 · 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 magnet (c) two small mirrors (d) an empty juice carton
2. 2.🧺 Which of these is not needed for the periscope? (a) vinegar (b) a pencil (c) two small mirrors (d) an empty juice carton
3. 3.🧺 Which of these is needed for the periscope? (a) vinegar (b) sticky tape (c) a magnet (d) yeast
4. 4.🧺 Do we need turmeric powder for the periscope? (a) not needed (b) needed
5. 5.🔍 Which is the odd one out? (a) black cloth (b) a mirror (c) a shiny steel plate (d) still clear water
6. 6.🔍 Which is the odd one out? (a) a dull brick (b) a rough wooden board (c) still clear water (d) black cloth
7. 7.🧺 Do we need a pencil for the periscope? (a) needed (b) not needed
8. 8.🔭 Does still clear water reflect light well or poorly? (a) reflects light well (b) reflects light poorly
9. 9.⚖️ Fair test — does the angle of the mirrors change how clearly you see? True or false: the same mirrors is what we measure. (a) True (b) False
10. 10.🧺 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
11. 11.True or false: a battery cell is needed for the periscope. (a) True (b) False
12. 12.⚖️ Fair test — does the angle of the mirrors change how clearly you see? Which of these is kept the same? (a) the same light (b) how clear the view is (c) the angle of the mirrors
13. 13.🔭 How many times does light bounce off a mirror in a simple periscope?
14. 14.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) sticky tape (b) a pencil (c) an empty juice carton (d) vinegar
15. 15.⚖️ 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 measure it (c) we change it
16. 16.🧺 Which of these is not needed for the periscope? (a) two small mirrors (b) a ruler (c) an empty juice carton (d) a balloon
17. 17.🔮 Predict: you make the periscope tube twice as tall. You can see over ___. (a) only short walls (b) the ground (c) taller walls (d) nothing at all
18. 18.🔮 Predict: you hold a written word up to a mirror. The letters look ___. (a) much bigger (b) flipped left to right (c) upside down only (d) in colour
19. 19.🧺 Which of these is needed for the periscope? (a) a battery cell (b) vinegar (c) a magnet (d) an empty juice carton
20. 20.🔭 What does a periscope let you do? (a) see in the dark (b) see germs (c) hear far sounds (d) see over a wall
21. 21.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) a battery cell (b) two small mirrors (c) an empty juice carton (d) a pencil
22. 22.⚖️ 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 same light (c) the same mirrors (d) the angle of the mirrors
23. 23.🔭 Does a mirror reflect light well or poorly? (a) reflects light poorly (b) reflects light well
24. 24.🔭 Does aluminium foil reflect light well or poorly? (a) reflects light poorly (b) reflects light well
25. 25.🧺 Do we need yeast for the periscope? (a) needed (b) not needed
26. 26.True or false: aluminium foil reflects light poorly. (a) True (b) False
27. 27.True or false: turmeric powder is not needed for the periscope. (a) True (b) False
28. 28.True or false: a shiny steel plate reflects light poorly. (a) True (b) False
29. 29.🧺 Do we need a magnet for the periscope? (a) needed (b) not needed
30. 30.⚖️ Fair test — does the angle of the mirrors change how clearly you see? True or false: the same light is what we measure. (a) True (b) False
31. 31.🧺 Do we need an empty juice carton for the periscope? (a) needed (b) not needed
32. 32.🛟 Who should cut the holes in the juice carton? (a) the youngest child (b) nobody needs to (c) a friend who is running (d) a grown-up
33. 33.🔭 Which of these reflects light poorly? (a) a shiny steel plate (b) a mirror (c) still clear water (d) a dull brick
34. 34.🛟 Which mirrors are safest for a children’s periscope? (a) loose glass panes (b) plastic safety mirrors (c) broken glass bits (d) big wall mirrors
35. 35.🔭 How many mirrors does a simple periscope use?
36. 36.🔭 Does a shiny steel plate reflect light well or poorly? (a) reflects light well (b) reflects light poorly
37. 37.True or false: a shiny steel plate reflects light well. (a) False (b) True
38. 38.⚖️ 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
39. 39.🔍 Which is the odd one out? (a) a mirror (b) still clear water (c) a rough wooden board (d) a shiny steel plate
40. 40.⚖️ Fair test — does the angle of the mirrors change how clearly you see? Which of these is what we measure? (a) the same light (b) the object we look at (c) the same mirrors (d) how clear the view is

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