Periscope STEM Project Worksheet

Science experiments lesson 28: Mirror periscope · Set 747 · 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.⚖️ 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
2. 2.🔭 Which of these reflects light poorly? (a) still clear water (b) a mirror (c) a shiny steel plate (d) a dull brick
3. 3.🧺 Do we need sticky tape for the periscope? (a) not needed (b) needed
4. 4.⚖️ 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
5. 5.🔮 Predict: you cover the top mirror with paper. What do you see? (a) a rainbow (b) a brighter view (c) two pictures (d) only darkness
6. 6.🧺 Do we need a magnet for the periscope? (a) not needed (b) needed
7. 7.🔭 Does still clear water reflect light well or poorly? (a) reflects light well (b) reflects light poorly
8. 8.True or false: two small mirrors is needed for the periscope. (a) True (b) False
9. 9.⚖️ Fair test — does the angle of the mirrors change how clearly you see? Which of these is what we measure? (a) the same carton (b) the object we look at (c) the same mirrors (d) how clear the view is
10. 10.🔍 Which is the odd one out? (a) a dull brick (b) a mirror (c) a shiny steel plate (d) aluminium foil
11. 11.🔮 Predict: you hold a written word up to a mirror. The letters look ___. (a) flipped left to right (b) in colour (c) upside down only (d) much bigger
12. 12.🛟 Which mirrors are safest for a children’s periscope? (a) plastic safety mirrors (b) big wall mirrors (c) loose glass panes (d) broken glass bits
13. 13.True or false: sticky tape is needed for the periscope. (a) False (b) True
14. 14.⚖️ 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 object we look at (c) the angle of the mirrors (d) the same mirrors
15. 15.⚖️ Fair test — does the angle of the mirrors change how clearly you see? What do we do with “the same carton”? (a) we measure it (b) we keep it the same (c) we change it
16. 16.🔍 Which is the odd one out? (a) a dull brick (b) black cloth (c) a rough wooden board (d) a shiny steel plate
17. 17.🧺 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) a magnet
18. 18.🧺 Which of these is not needed for the periscope? (a) sticky tape (b) a pencil (c) two small mirrors (d) yeast
19. 19.🔭 How many mirrors does a simple periscope use?
20. 20.🔭 How many times does light bounce off a mirror in a simple periscope?
21. 21.🧺 Do we need a battery cell for the periscope? (a) not needed (b) needed
22. 22.🔭 Who uses a periscope to look above the water? (a) a submarine crew (b) a farmer (c) a baker (d) a pilot in a plane
23. 23.⚖️ 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 keep it the same (b) we change it (c) we measure it
24. 24.🛟 You must never point a periscope or a mirror at ___. (a) the Sun (b) a tree (c) a friend’s toy (d) a wall
25. 25.⚖️ 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
26. 26.🔭 Does black cloth reflect light well or poorly? (a) reflects light well (b) reflects light poorly
27. 27.⚖️ Fair test — does the angle of the mirrors change how clearly you see? True or false: the same carton is kept the same. (a) False (b) True
28. 28.True or false: vinegar is not needed for the periscope. (a) False (b) True
29. 29.🔭 Which of these reflects light well? (a) black cloth (b) dark soil (c) a shiny steel plate (d) a dull brick
30. 30.⚖️ 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
31. 31.🔍 Which is the odd one out? (a) dark soil (b) still clear water (c) a shiny steel plate (d) aluminium foil
32. 32.True or false: a ruler is not needed for the periscope. (a) True (b) False
33. 33.⚖️ Fair test — does the angle of the mirrors change how clearly you see? What do we do with “the same light”? (a) we measure it (b) we keep it the same (c) we change it
34. 34.True or false: vinegar is needed for the periscope. (a) True (b) False
35. 35.⚖️ 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) False (b) True
36. 36.🛟 Who should cut the holes in the juice carton? (a) a friend who is running (b) the youngest child (c) nobody needs to (d) a grown-up
37. 37.🔭 Which of these reflects light well? (a) dark soil (b) a dull brick (c) black cloth (d) aluminium foil
38. 38.⚖️ 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
39. 39.🧺 Which of these is not needed for the periscope? (a) an empty juice carton (b) a balloon (c) sticky tape (d) a ruler
40. 40.🔭 Does a dull brick reflect light well or poorly? (a) reflects light well (b) reflects light poorly

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