Periscope STEM Project Worksheet

Science experiments lesson 28: Mirror periscope · Set 935 · 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.True or false: a dull brick reflects light well. (a) False (b) True
2. 2.⚖️ Fair test — does the angle of the mirrors change how clearly you see? True or false: the same mirrors is the one thing we change. (a) False (b) True
3. 3.🔮 Predict: you cover the top mirror with paper. What do you see? (a) two pictures (b) a brighter view (c) a rainbow (d) only darkness
4. 4.🔭 Does still clear water reflect light well or poorly? (a) reflects light poorly (b) reflects light well
5. 5.⚖️ Fair test — does the angle of the mirrors change how clearly you see? Which of these is what we measure? (a) the same mirrors (b) how clear the view is (c) the same carton (d) the same light
6. 6.🧺 Do we need a battery cell for the periscope? (a) needed (b) not needed
7. 7.🔭 Does a shiny steel plate reflect light well or poorly? (a) reflects light well (b) reflects light poorly
8. 8.⚖️ Fair test — does the angle of the mirrors change how clearly you see? True or false: the same light is what we measure. (a) False (b) True
9. 9.🔭 How many times does light bounce off a mirror in a simple periscope?
10. 10.True or false: a shiny steel plate reflects light poorly. (a) False (b) True
11. 11.🔭 Why must the two mirrors face each other and be parallel? (a) to make it heavy (b) so it looks shiny (c) so light reaches the eye (d) so it can float
12. 12.⚖️ 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 measure it (b) we change it (c) we keep it the same
13. 13.🧺 Which of these is needed for the periscope? (a) a balloon (b) a magnet (c) a battery cell (d) a pencil
14. 14.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) a ruler (b) an empty juice carton (c) a magnet (d) two small mirrors
15. 15.🧺 Do we need a magnet for the periscope? (a) not needed (b) needed
16. 16.🔭 At what angle are the mirrors set in a simple periscope? (a) 90 degrees (b) 180 degrees (c) 10 degrees (d) 45 degrees
17. 17.🧺 Do we need yeast for the periscope? (a) not needed (b) needed
18. 18.🔭 How many mirrors does a simple periscope use?
19. 19.True or false: a mirror reflects light well. (a) False (b) True
20. 20.🧺 Do we need a ruler for the periscope? (a) needed (b) not needed
21. 21.🧺 Do we need two small mirrors for the periscope? (a) needed (b) not needed
22. 22.🔍 Which is the odd one out? (a) dark soil (b) a dull brick (c) aluminium foil (d) black cloth
23. 23.🛟 Who should cut the holes in the juice carton? (a) nobody needs to (b) a friend who is running (c) the youngest child (d) a grown-up
24. 24.🧺 Do we need sticky tape for the periscope? (a) needed (b) not needed
25. 25.🧺 Which of these is needed for the periscope? (a) a balloon (b) vinegar (c) a ruler (d) a magnet
26. 26.True or false: a rough wooden board reflects light poorly. (a) True (b) False
27. 27.⚖️ Fair test — does the angle of the mirrors change how clearly you see? True or false: the angle of the mirrors is what we measure. (a) False (b) True
28. 28.🔭 Does dark soil reflect light well or poorly? (a) reflects light poorly (b) reflects light well
29. 29.🔭 Which of these reflects light well? (a) black cloth (b) a dull brick (c) a rough wooden board (d) a shiny steel plate
30. 30.True or false: turmeric powder is needed for the periscope. (a) False (b) True
31. 31.🔭 Which of these reflects light well? (a) dark soil (b) black cloth (c) a rough wooden board (d) aluminium foil
32. 32.🧺 Do we need a balloon for the periscope? (a) not needed (b) needed
33. 33.⚖️ 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 light (b) the angle of the mirrors (c) the object we look at (d) the same carton
34. 34.🧺 Which of these is needed for the periscope? (a) a battery cell (b) yeast (c) a balloon (d) an empty juice carton
35. 35.⚖️ 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
36. 36.⚖️ 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) the angle of the mirrors (c) how clear the view is
37. 37.🔭 Does black cloth reflect light well or poorly? (a) reflects light poorly (b) reflects light well
38. 38.🔭 Does a mirror reflect light well or poorly? (a) reflects light poorly (b) reflects light well
39. 39.🔍 Which is the odd one out? (a) aluminium foil (b) a rough wooden board (c) a mirror (d) a shiny steel plate
40. 40.🔍 Which is the odd one out? (a) aluminium foil (b) dark soil (c) a shiny steel plate (d) still clear water

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