Periscope STEM Project Worksheet

Science experiments lesson 28: Mirror periscope · Set 571 · 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 balloon is not needed for the periscope. (a) False (b) True
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) the object we look at (b) the angle of the mirrors (c) how clear the view is (d) the same carton
3. 3.🔍 Which is the odd one out? (a) dark soil (b) a shiny steel plate (c) a mirror (d) aluminium foil
4. 4.🧺 Which of these is needed for the periscope? (a) vinegar (b) turmeric powder (c) a magnet (d) sticky tape
5. 5.🛟 You must never point a periscope or a mirror at ___. (a) a wall (b) a tree (c) the Sun (d) a friend’s toy
6. 6.True or false: dark soil reflects light well. (a) True (b) False
7. 7.🔭 At what angle are the mirrors set in a simple periscope? (a) 90 degrees (b) 45 degrees (c) 10 degrees (d) 180 degrees
8. 8.True or false: a mirror reflects light well. (a) False (b) True
9. 9.True or false: a magnet is needed for the periscope. (a) True (b) False
10. 10.True or false: aluminium foil reflects light well. (a) False (b) True
11. 11.🔮 Predict: you cover the top mirror with paper. What do you see? (a) a brighter view (b) a rainbow (c) two pictures (d) only darkness
12. 12.🧺 Which of these is needed for the periscope? (a) a balloon (b) a battery cell (c) turmeric powder (d) two small mirrors
13. 13.🔍 Which is the odd one out? (a) dark soil (b) a mirror (c) a dull brick (d) a rough wooden board
14. 14.⚖️ 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) True (b) False
15. 15.True or false: a balloon is needed for the periscope. (a) False (b) True
16. 16.⚖️ 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
17. 17.🔭 How many mirrors does a simple periscope use?
18. 18.🔮 Predict: you make the periscope tube twice as tall. You can see over ___. (a) nothing at all (b) taller walls (c) only short walls (d) the ground
19. 19.True or false: a rough wooden board reflects light poorly. (a) True (b) False
20. 20.🔮 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
21. 21.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) a ruler (b) two small mirrors (c) yeast (d) sticky tape
22. 22.⚖️ 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) False (b) True
23. 23.⚖️ 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 object we look at (c) how clear the view is
24. 24.🧺 Which of these is not needed for the periscope? (a) vinegar (b) an empty juice carton (c) a pencil (d) a ruler
25. 25.🛟 Who should cut the holes in the juice carton? (a) a friend who is running (b) the youngest child (c) a grown-up (d) nobody needs to
26. 26.⚖️ 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
27. 27.🧺 Do we need vinegar for the periscope? (a) not needed (b) needed
28. 28.🧺 Do we need sticky tape for the periscope? (a) not needed (b) needed
29. 29.🔭 Which of these reflects light well? (a) a dull brick (b) black cloth (c) dark soil (d) a shiny steel plate
30. 30.🧺 Do we need a battery cell for the periscope? (a) needed (b) not needed
31. 31.📘 Light bouncing off a mirror is called ___. (a) refraction (b) reflection (c) evaporation (d) magnetism
32. 32.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) a magnet (b) an empty juice carton (c) two small mirrors (d) sticky tape
33. 33.🧺 Which of these is not needed for the periscope? (a) a balloon (b) a ruler (c) an empty juice carton (d) sticky tape
34. 34.🧺 Do we need a balloon for the periscope? (a) not needed (b) needed
35. 35.🛟 Which mirrors are safest for a children’s periscope? (a) loose glass panes (b) big wall mirrors (c) plastic safety mirrors (d) broken glass bits
36. 36.⚖️ 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) how clear the view is (c) the object we look at (d) the same mirrors
37. 37.🔭 How many times does light bounce off a mirror in a simple periscope?
38. 38.🔭 Which of these reflects light well? (a) black cloth (b) aluminium foil (c) dark soil (d) a rough wooden board
39. 39.⚖️ Fair test — does the angle of the mirrors change how clearly you see? What do we do with “the same light”? (a) we measure it (b) we keep it the same (c) we change it
40. 40.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) a ruler (b) a battery cell (c) sticky tape (d) a pencil

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