Periscope STEM Project Worksheet

Science experiments lesson 28: Mirror periscope · Set 862 · 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.⚖️ Fair test — does the angle of the mirrors change how clearly you see? What do we do with “the same light”? (a) we change it (b) we measure it (c) we keep it the same
2. 2.🧺 Do we need a battery cell for the periscope? (a) needed (b) not needed
3. 3.🔭 Why must the two mirrors face each other and be parallel? (a) so it looks shiny (b) so it can float (c) so light reaches the eye (d) to make it heavy
4. 4.🧺 Which of these is not needed for the periscope? (a) two small mirrors (b) yeast (c) an empty juice carton (d) sticky tape
5. 5.🧺 Which of these is needed for the periscope? (a) a balloon (b) turmeric powder (c) an empty juice carton (d) a magnet
6. 6.⚖️ 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) False (b) True
7. 7.⚖️ 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
8. 8.🔮 Predict: you hold a written word up to a mirror. The letters look ___. (a) upside down only (b) in colour (c) flipped left to right (d) much bigger
9. 9.⚖️ 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
10. 10.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) a pencil (b) yeast (c) an empty juice carton (d) two small mirrors
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 object we look at (c) how clear the view is
12. 12.⚖️ Fair test — does the angle of the mirrors change how clearly you see? Which of these is what we measure? (a) how clear the view is (b) the object we look at (c) the same carton (d) the same light
13. 13.🔍 Which is the odd one out? (a) still clear water (b) black cloth (c) a shiny steel plate (d) a mirror
14. 14.🛟 You must never point a periscope or a mirror at ___. (a) a friend’s toy (b) a tree (c) a wall (d) the Sun
15. 15.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) sticky tape (b) two small mirrors (c) a balloon (d) an empty juice carton
16. 16.🔭 Does a mirror reflect light well or poorly? (a) reflects light well (b) reflects light poorly
17. 17.🧺 Do we need an empty juice carton for the periscope? (a) not needed (b) needed
18. 18.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) a magnet (b) a ruler (c) a pencil (d) sticky tape
19. 19.🔮 Predict: you make the periscope tube twice as tall. You can see over ___. (a) nothing at all (b) the ground (c) only short walls (d) taller walls
20. 20.🔭 What does a periscope let you do? (a) see germs (b) see in the dark (c) see over a wall (d) hear far sounds
21. 21.🔮 Predict: you cover the top mirror with paper. What do you see? (a) only darkness (b) a rainbow (c) a brighter view (d) two pictures
22. 22.🔭 Which of these reflects light well? (a) aluminium foil (b) black cloth (c) a dull brick (d) a rough wooden board
23. 23.🛟 Which mirrors are safest for a children’s periscope? (a) loose glass panes (b) plastic safety mirrors (c) big wall mirrors (d) broken glass bits
24. 24.⚖️ Fair test — does the angle of the mirrors change how clearly you see? True or false: the same carton is the one thing we change. (a) True (b) False
25. 25.📘 Light bouncing off a mirror is called ___. (a) refraction (b) magnetism (c) reflection (d) evaporation
26. 26.True or false: an empty juice carton is not needed for the periscope. (a) True (b) False
27. 27.⚖️ Fair test — does the angle of the mirrors change how clearly you see? True or false: the same mirrors is kept the same. (a) True (b) False
28. 28.🔭 Which of these reflects light poorly? (a) a shiny steel plate (b) a rough wooden board (c) still clear water (d) aluminium foil
29. 29.True or false: still clear water reflects light well. (a) True (b) False
30. 30.🔍 Which is the odd one out? (a) a shiny steel plate (b) aluminium foil (c) dark soil (d) still clear water
31. 31.True or false: dark soil reflects light well. (a) True (b) False
32. 32.🔍 Which is the odd one out? (a) a rough wooden board (b) a dull brick (c) black cloth (d) a mirror
33. 33.🧺 Do we need a ruler for the periscope? (a) needed (b) not needed
34. 34.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) a pencil (b) two small mirrors (c) sticky tape (d) a battery cell
35. 35.🛟 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
36. 36.🔍 Which is the odd one out? (a) black cloth (b) dark soil (c) a rough wooden board (d) still clear water
37. 37.🧺 Do we need sticky tape for the periscope? (a) needed (b) not needed
38. 38.🔭 Does a dull brick reflect light well or poorly? (a) reflects light poorly (b) reflects light well
39. 39.🔍 Which is the odd one out? (a) a rough wooden board (b) a shiny steel plate (c) black cloth (d) dark soil
40. 40.🧺 Do we need a pencil for the periscope? (a) needed (b) not needed

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