Periscope STEM Project Worksheet

Science experiments lesson 28: Mirror periscope · Set 399 · 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 angle of the mirrors”? (a) we change it (b) we keep it the same (c) we measure it
2. 2.🔭 Does dark soil reflect light well or poorly? (a) reflects light well (b) reflects light poorly
3. 3.True or false: sticky tape is not needed for the periscope. (a) False (b) True
4. 4.⚖️ 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) the same carton (c) the object we look at (d) the angle of the mirrors
5. 5.True or false: an empty juice carton is not needed for the periscope. (a) True (b) False
6. 6.⚖️ 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 angle of the mirrors (c) the same light (d) how clear the view is
7. 7.🔍 Which is the odd one out? (a) dark soil (b) a shiny steel plate (c) aluminium foil (d) still clear water
8. 8.🔭 Does a dull brick reflect light well or poorly? (a) reflects light well (b) reflects light poorly
9. 9.🔍 Which is the odd one out? (a) a rough wooden board (b) aluminium foil (c) dark soil (d) black cloth
10. 10.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) an empty juice carton (b) vinegar (c) two small mirrors (d) sticky tape
11. 11.⚖️ Fair test — does the angle of the mirrors change how clearly you see? True or false: the object we look at is the one thing we change. (a) True (b) False
12. 12.⚖️ 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
13. 13.🧺 Which of these is needed for the periscope? (a) a pencil (b) a battery cell (c) a magnet (d) turmeric powder
14. 14.🛟 You must never point a periscope or a mirror at ___. (a) a tree (b) a friend’s toy (c) a wall (d) the Sun
15. 15.🔭 How many times does light bounce off a mirror in a simple periscope?
16. 16.True or false: a ruler is not needed for the periscope. (a) False (b) True
17. 17.🧺 Do we need a magnet for the periscope? (a) needed (b) not needed
18. 18.🔍 Which is the odd one out? (a) still clear water (b) a shiny steel plate (c) black cloth (d) aluminium foil
19. 19.⚖️ Fair test — does the angle of the mirrors change how clearly you see? What do we do with “how clear the view is”? (a) we keep it the same (b) we measure it (c) we change it
20. 20.True or false: a mirror reflects light well. (a) False (b) True
21. 21.🧺 Do we need sticky tape for the periscope? (a) not needed (b) needed
22. 22.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) sticky tape (b) turmeric powder (c) two small mirrors (d) a ruler
23. 23.True or false: a dull brick reflects light well. (a) False (b) True
24. 24.🔮 Predict: you make the periscope tube twice as tall. You can see over ___. (a) nothing at all (b) only short walls (c) taller walls (d) the ground
25. 25.🔮 Predict: you cover the top mirror with paper. What do you see? (a) a rainbow (b) two pictures (c) a brighter view (d) only darkness
26. 26.🔮 Predict: you hold a written word up to a mirror. The letters look ___. (a) much bigger (b) flipped left to right (c) upside down only (d) in colour
27. 27.🧺 Which of these is not needed for the periscope? (a) turmeric powder (b) a pencil (c) two small mirrors (d) a ruler
28. 28.True or false: still clear water reflects light poorly. (a) True (b) False
29. 29.🔍 Which is the odd one out? (a) black cloth (b) dark soil (c) still clear water (d) a rough wooden board
30. 30.🔍 Which is the odd one out? (a) a mirror (b) a dull brick (c) a shiny steel plate (d) aluminium foil
31. 31.🛟 Which mirrors are safest for a children’s periscope? (a) big wall mirrors (b) broken glass bits (c) loose glass panes (d) plastic safety mirrors
32. 32.True or false: dark soil reflects light well. (a) True (b) False
33. 33.🔭 What does a periscope let you do? (a) see over a wall (b) hear far sounds (c) see germs (d) see in the dark
34. 34.🧺 Do we need turmeric powder for the periscope? (a) not needed (b) needed
35. 35.🛟 Who should cut the holes in the juice carton? (a) the youngest child (b) nobody needs to (c) a friend who is running (d) a grown-up
36. 36.🔭 How many mirrors does a simple periscope use?
37. 37.⚖️ Fair test — does the angle of the mirrors change how clearly you see? True or false: the object we look at is what we measure. (a) True (b) False
38. 38.🧺 Which of these is not needed for the periscope? (a) an empty juice carton (b) sticky tape (c) a ruler (d) a magnet
39. 39.🔭 Which of these reflects light poorly? (a) a shiny steel plate (b) a mirror (c) dark soil (d) still clear water
40. 40.🧺 Which of these is needed for the periscope? (a) yeast (b) two small mirrors (c) a battery cell (d) a magnet

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