Periscope STEM Project Worksheet

Science experiments lesson 28: Mirror periscope · Set 845 · 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.🧺 Do we need two small mirrors for the periscope? (a) needed (b) not needed
2. 2.🧺 Do we need turmeric powder for the periscope? (a) needed (b) not needed
3. 3.🧺 Do we need sticky tape for the periscope? (a) not needed (b) needed
4. 4.True or false: black cloth reflects light well. (a) True (b) False
5. 5.⚖️ Fair test — does the angle of the mirrors change how clearly you see? What do we do with “the same light”? (a) we keep it the same (b) we change it (c) we measure it
6. 6.🔭 Which of these reflects light well? (a) dark soil (b) a shiny steel plate (c) black cloth (d) a rough wooden board
7. 7.True or false: turmeric powder is needed for the periscope. (a) False (b) True
8. 8.🔭 Does a rough wooden board reflect light well or poorly? (a) reflects light well (b) reflects light poorly
9. 9.True or false: yeast is needed for the periscope. (a) True (b) False
10. 10.🔍 Which is the odd one out? (a) a dull brick (b) a shiny steel plate (c) still clear water (d) aluminium foil
11. 11.🧺 Do we need a battery cell for the periscope? (a) not needed (b) needed
12. 12.⚖️ Fair test — does the angle of the mirrors change how clearly you see? Which of these is what we measure? (a) the object we look at (b) the same mirrors (c) how clear the view is (d) the angle of the mirrors
13. 13.🛟 Which mirrors are safest for a children’s periscope? (a) plastic safety mirrors (b) loose glass panes (c) broken glass bits (d) big wall mirrors
14. 14.🛟 Who should cut the holes in the juice carton? (a) the youngest child (b) a friend who is running (c) a grown-up (d) nobody needs to
15. 15.🧺 Do we need an empty juice carton for the periscope? (a) not needed (b) needed
16. 16.🔭 How many times does light bounce off a mirror in a simple periscope?
17. 17.🔮 Predict: you hold a written word up to a mirror. The letters look ___. (a) much bigger (b) upside down only (c) flipped left to right (d) in colour
18. 18.🧺 Which of these is needed for the periscope? (a) vinegar (b) a balloon (c) a battery cell (d) two small mirrors
19. 19.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) a pencil (b) a ruler (c) yeast (d) two small mirrors
20. 20.🧺 Which of these is not needed for the periscope? (a) a magnet (b) an empty juice carton (c) a pencil (d) two small mirrors
21. 21.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) two small mirrors (b) a pencil (c) a ruler (d) a magnet
22. 22.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) two small mirrors (b) vinegar (c) an empty juice carton (d) a ruler
23. 23.⚖️ 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 change it (c) we measure it
24. 24.⚖️ Fair test — does the angle of the mirrors change how clearly you see? True or false: the same carton is kept the same. (a) True (b) False
25. 25.True or false: a shiny steel plate reflects light well. (a) False (b) True
26. 26.🔍 Which is the odd one out? (a) a dull brick (b) a shiny steel plate (c) dark soil (d) a rough wooden board
27. 27.🔭 At what angle are the mirrors set in a simple periscope? (a) 90 degrees (b) 180 degrees (c) 45 degrees (d) 10 degrees
28. 28.⚖️ 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 mirrors (b) how clear the view is (c) the object we look at (d) the angle of the mirrors
29. 29.🔭 Which of these reflects light well? (a) a rough wooden board (b) a dull brick (c) black cloth (d) a mirror
30. 30.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) a ruler (b) turmeric powder (c) an empty juice carton (d) sticky tape
31. 31.📘 Light bouncing off a mirror is called ___. (a) evaporation (b) refraction (c) magnetism (d) reflection
32. 32.🔭 Why must the two mirrors face each other and be parallel? (a) to make it heavy (b) so it can float (c) so light reaches the eye (d) so it looks shiny
33. 33.🔮 Predict: you cover the top mirror with paper. What do you see? (a) a brighter view (b) two pictures (c) only darkness (d) a rainbow
34. 34.🧺 Which of these is needed for the periscope? (a) vinegar (b) yeast (c) turmeric powder (d) a ruler
35. 35.🧺 Which of these is not needed for the periscope? (a) a ruler (b) a pencil (c) a battery cell (d) two small mirrors
36. 36.⚖️ Fair test — does the angle of the mirrors change how clearly you see? What do we do with “the same mirrors”? (a) we measure it (b) we keep it the same (c) we change it
37. 37.⚖️ 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
38. 38.⚖️ 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) True (b) False
39. 39.🧺 Which of these is not needed for the periscope? (a) a ruler (b) vinegar (c) an empty juice carton (d) sticky tape
40. 40.🧺 Which of these is needed for the periscope? (a) a battery cell (b) turmeric powder (c) a magnet (d) an empty juice carton

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