Periscope STEM Project Worksheet

Science experiments lesson 28: Mirror periscope · Set 343 · 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 ruler (d) sticky tape
2. 2.True or false: vinegar is not needed for the periscope. (a) True (b) False
3. 3.⚖️ 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 same mirrors (c) the object we look at (d) how clear the view is
4. 4.🔍 Which is the odd one out? (a) still clear water (b) black cloth (c) a mirror (d) a shiny steel plate
5. 5.True or false: still clear water reflects light poorly. (a) True (b) False
6. 6.🔭 Which of these reflects light well? (a) black cloth (b) a mirror (c) a dull brick (d) a rough wooden board
7. 7.🔭 How many mirrors does a simple periscope use?
8. 8.⚖️ 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 keep it the same (c) we measure it
9. 9.🔭 Which of these reflects light well? (a) a rough wooden board (b) dark soil (c) black cloth (d) a shiny steel plate
10. 10.🧺 Do we need two small mirrors for the periscope? (a) needed (b) not needed
11. 11.⚖️ 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 carton (c) how clear the view is
12. 12.🔭 How many times does light bounce off a mirror in a simple periscope?
13. 13.True or false: dark soil reflects light poorly. (a) False (b) True
14. 14.🛟 Which mirrors are safest for a children’s periscope? (a) broken glass bits (b) loose glass panes (c) big wall mirrors (d) plastic safety mirrors
15. 15.🔭 Does a dull brick reflect light well or poorly? (a) reflects light poorly (b) reflects light well
16. 16.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) a ruler (b) two small mirrors (c) sticky tape (d) a magnet
17. 17.🧺 Which of these is needed for the periscope? (a) a magnet (b) a battery cell (c) sticky tape (d) yeast
18. 18.🔍 Which is the odd one out? (a) a rough wooden board (b) black cloth (c) dark soil (d) a shiny steel plate
19. 19.🔭 Which of these reflects light well? (a) black cloth (b) a rough wooden board (c) a dull brick (d) still clear water
20. 20.🔮 Predict: you cover the top mirror with paper. What do you see? (a) only darkness (b) a brighter view (c) a rainbow (d) two pictures
21. 21.⚖️ Fair test — does the angle of the mirrors change how clearly you see? True or false: how clear the view is is the one thing we change. (a) False (b) True
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) how clear the view is (b) the object we look at (c) the angle of the mirrors (d) the same mirrors
23. 23.🔭 Does a shiny steel plate reflect light well or poorly? (a) reflects light well (b) reflects light poorly
24. 24.True or false: turmeric powder is needed for the periscope. (a) False (b) True
25. 25.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) yeast (b) sticky tape (c) a pencil (d) a ruler
26. 26.🔭 Which of these reflects light poorly? (a) a shiny steel plate (b) a mirror (c) aluminium foil (d) a dull brick
27. 27.🛟 Who should cut the holes in the juice carton? (a) the youngest child (b) a friend who is running (c) nobody needs to (d) a grown-up
28. 28.True or false: still clear water reflects light well. (a) True (b) False
29. 29.True or false: a shiny steel plate reflects light well. (a) True (b) False
30. 30.True or false: sticky tape is not needed for the periscope. (a) False (b) True
31. 31.🔍 Which is the odd one out? (a) aluminium foil (b) a dull brick (c) black cloth (d) a rough wooden board
32. 32.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) a balloon (b) two small mirrors (c) a ruler (d) a pencil
33. 33.True or false: a battery cell is needed for the periscope. (a) True (b) False
34. 34.🔮 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
35. 35.⚖️ Fair test — does the angle of the mirrors change how clearly you see? Which of these is kept the same? (a) the object we look at (b) the angle of the mirrors (c) how clear the view is
36. 36.🔮 Predict: you make the periscope tube twice as tall. You can see over ___. (a) the ground (b) nothing at all (c) only short walls (d) taller walls
37. 37.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) vinegar (b) a pencil (c) an empty juice carton (d) sticky tape
38. 38.🛟 You must never point a periscope or a mirror at ___. (a) a wall (b) a friend’s toy (c) the Sun (d) a tree
39. 39.🔭 Which of these reflects light well? (a) a rough wooden board (b) black cloth (c) aluminium foil (d) a dull brick
40. 40.⚖️ 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

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