Periscope STEM Project Worksheet

Science experiments lesson 28: Mirror periscope · Set 547 · 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) turmeric powder (b) an empty juice carton (c) a pencil (d) a ruler
2. 2.🔍 Which is the odd one out? (a) aluminium foil (b) a shiny steel plate (c) a mirror (d) a dull brick
3. 3.🧺 Do we need a magnet for the periscope? (a) not needed (b) needed
4. 4.🔭 How many mirrors does a simple periscope use?
5. 5.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) sticky tape (b) a pencil (c) yeast (d) two small mirrors
6. 6.⚖️ Fair test — does the angle of the mirrors change how clearly you see? True or false: the same light is kept the same. (a) False (b) True
7. 7.⚖️ Fair test — does the angle of the mirrors change how clearly you see? Which of these is what we measure? (a) the angle of the mirrors (b) the object we look at (c) the same carton (d) how clear the view is
8. 8.🔭 Which of these reflects light poorly? (a) aluminium foil (b) a mirror (c) black cloth (d) a shiny steel plate
9. 9.🔮 Predict: you make the periscope tube twice as tall. You can see over ___. (a) nothing at all (b) only short walls (c) the ground (d) taller walls
10. 10.⚖️ Fair test — does the angle of the mirrors change how clearly you see? True or false: how clear the view is is what we measure. (a) True (b) False
11. 11.🔮 Predict: you cover the top mirror with paper. What do you see? (a) a brighter view (b) only darkness (c) a rainbow (d) two pictures
12. 12.🔭 At what angle are the mirrors set in a simple periscope? (a) 10 degrees (b) 90 degrees (c) 180 degrees (d) 45 degrees
13. 13.True or false: still clear water reflects light poorly. (a) False (b) True
14. 14.🛟 Who should cut the holes in the juice carton? (a) nobody needs to (b) a friend who is running (c) a grown-up (d) the youngest child
15. 15.⚖️ 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 keep it the same (c) we change it
16. 16.🔭 Which of these reflects light well? (a) dark soil (b) still clear water (c) a rough wooden board (d) a dull brick
17. 17.🛟 Which mirrors are safest for a children’s periscope? (a) loose glass panes (b) big wall mirrors (c) broken glass bits (d) plastic safety mirrors
18. 18.🔍 Which is the odd one out? (a) a rough wooden board (b) aluminium foil (c) black cloth (d) dark soil
19. 19.🔭 Does black cloth reflect light well or poorly? (a) reflects light well (b) reflects light poorly
20. 20.True or false: a shiny steel plate reflects light poorly. (a) True (b) False
21. 21.🧺 Which of these is needed for the periscope? (a) vinegar (b) turmeric powder (c) a pencil (d) a battery cell
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) how clear the view is (c) the angle of the mirrors (d) the same mirrors
23. 23.True or false: two small mirrors is needed for the periscope. (a) False (b) True
24. 24.🔍 Which is the odd one out? (a) still clear water (b) aluminium foil (c) a rough wooden board (d) a shiny steel plate
25. 25.🔮 Predict: you hold a written word up to a mirror. The letters look ___. (a) in colour (b) flipped left to right (c) much bigger (d) upside down only
26. 26.🔭 What does a periscope let you do? (a) hear far sounds (b) see over a wall (c) see in the dark (d) see germs
27. 27.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) a battery cell (b) sticky tape (c) a ruler (d) a pencil
28. 28.🔍 Which is the odd one out? (a) a dull brick (b) black cloth (c) dark soil (d) a shiny steel plate
29. 29.True or false: an empty juice carton is not needed for the periscope. (a) True (b) False
30. 30.🔍 Which is the odd one out? (a) still clear water (b) a rough wooden board (c) black cloth (d) a dull brick
31. 31.True or false: a shiny steel plate reflects light well. (a) True (b) False
32. 32.🔭 How many times does light bounce off a mirror in a simple periscope?
33. 33.🔭 Why must the two mirrors face each other and be parallel? (a) to make it heavy (b) so it can float (c) so it looks shiny (d) so light reaches the eye
34. 34.🧺 Which of these is needed for the periscope? (a) a magnet (b) two small mirrors (c) vinegar (d) yeast
35. 35.🔭 Does a mirror reflect light well or poorly? (a) reflects light well (b) reflects light poorly
36. 36.True or false: a ruler is needed for the periscope. (a) False (b) True
37. 37.True or false: a mirror reflects light well. (a) False (b) True
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) the same light (c) how clear the view is
39. 39.🧺 Do we need a pencil for the periscope? (a) not needed (b) needed
40. 40.🧺 Which of these is needed for the periscope? (a) a battery cell (b) sticky tape (c) a balloon (d) yeast

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