Periscope STEM Project Worksheet

Science experiments lesson 28: Mirror periscope · Set 120 · 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.🔍 Which is the odd one out? (a) black cloth (b) a shiny steel plate (c) still clear water (d) a mirror
2. 2.⚖️ 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
3. 3.⚖️ 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) False (b) True
4. 4.🛟 Who should cut the holes in the juice carton? (a) the youngest child (b) a grown-up (c) a friend who is running (d) nobody needs to
5. 5.True or false: a balloon is not needed for the periscope. (a) True (b) False
6. 6.🛟 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
7. 7.True or false: a dull brick reflects light well. (a) True (b) False
8. 8.True or false: still clear water reflects light well. (a) False (b) True
9. 9.🔭 Does a mirror reflect light well or poorly? (a) reflects light poorly (b) reflects light well
10. 10.🛟 You must never point a periscope or a mirror at ___. (a) a friend’s toy (b) the Sun (c) a wall (d) a tree
11. 11.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) a ruler (b) two small mirrors (c) a pencil (d) a balloon
12. 12.⚖️ 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 change it (b) we measure it (c) we keep it the same
13. 13.🔭 Does a shiny steel plate reflect light well or poorly? (a) reflects light well (b) reflects light poorly
14. 14.🧺 Which of these is needed for the periscope? (a) an empty juice carton (b) a balloon (c) a battery cell (d) a magnet
15. 15.⚖️ 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
16. 16.🔭 Does still clear water reflect light well or poorly? (a) reflects light well (b) reflects light poorly
17. 17.🔮 Predict: you cover the top mirror with paper. What do you see? (a) a rainbow (b) two pictures (c) a brighter view (d) only darkness
18. 18.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) two small mirrors (b) a pencil (c) an empty juice carton (d) a battery cell
19. 19.True or false: a battery cell is not needed for the periscope. (a) False (b) True
20. 20.🧺 Do we need an empty juice carton for the periscope? (a) not needed (b) needed
21. 21.🔭 How many mirrors does a simple periscope use?
22. 22.⚖️ Fair test — does the angle of the mirrors change how clearly you see? True or false: the object we look at is what we measure. (a) False (b) True
23. 23.🧺 Which of these is not needed for the periscope? (a) an empty juice carton (b) sticky tape (c) two small mirrors (d) vinegar
24. 24.🔭 Which of these reflects light poorly? (a) a shiny steel plate (b) a rough wooden board (c) aluminium foil (d) still clear water
25. 25.🔭 How many times does light bounce off a mirror in a simple periscope?
26. 26.True or false: vinegar is needed for the periscope. (a) False (b) True
27. 27.True or false: a shiny steel plate reflects light poorly. (a) False (b) True
28. 28.⚖️ 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
29. 29.🔭 Does a rough wooden board reflect light well or poorly? (a) reflects light well (b) reflects light poorly
30. 30.True or false: a pencil is not needed for the periscope. (a) True (b) False
31. 31.⚖️ 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 angle of the mirrors (c) the same light
32. 32.⚖️ 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
33. 33.True or false: a ruler is not needed for the periscope. (a) False (b) True
34. 34.🔮 Predict: you hold a written word up to a mirror. The letters look ___. (a) flipped left to right (b) upside down only (c) much bigger (d) in colour
35. 35.🔭 At what angle are the mirrors set in a simple periscope? (a) 45 degrees (b) 180 degrees (c) 90 degrees (d) 10 degrees
36. 36.True or false: a rough wooden board reflects light well. (a) True (b) False
37. 37.True or false: a magnet is needed for the periscope. (a) True (b) False
38. 38.🔭 Which of these reflects light well? (a) black cloth (b) a dull brick (c) dark soil (d) a mirror
39. 39.🧺 Do we need two small mirrors for the periscope? (a) needed (b) not needed
40. 40.🔭 Which of these reflects light poorly? (a) a dull brick (b) a mirror (c) a shiny steel plate (d) aluminium foil

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