Periscope STEM Project Worksheet

Science experiments lesson 28: Mirror periscope · Set 706 · 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) two small mirrors (b) an empty juice carton (c) a pencil (d) a magnet
2. 2.True or false: sticky tape is needed for the periscope. (a) True (b) False
3. 3.🔭 Who uses a periscope to look above the water? (a) a farmer (b) a baker (c) a pilot in a plane (d) a submarine crew
4. 4.🔍 Which is the odd one out? (a) dark soil (b) a shiny steel plate (c) a dull brick (d) a rough wooden board
5. 5.True or false: yeast is needed for the periscope. (a) False (b) True
6. 6.🔭 Which of these reflects light well? (a) a dull brick (b) aluminium foil (c) a rough wooden board (d) black cloth
7. 7.⚖️ 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
8. 8.🔮 Predict: you make the periscope tube twice as tall. You can see over ___. (a) nothing at all (b) only short walls (c) the ground (d) taller walls
9. 9.🛟 Who should cut the holes in the juice carton? (a) nobody needs to (b) a friend who is running (c) a grown-up (d) the youngest child
10. 10.True or false: a balloon is needed for the periscope. (a) True (b) False
11. 11.🔍 Which is the odd one out? (a) a dull brick (b) a mirror (c) still clear water (d) a shiny steel plate
12. 12.True or false: vinegar is not needed for the periscope. (a) True (b) False
13. 13.🔮 Predict: you hold a written word up to a mirror. The letters look ___. (a) in colour (b) much bigger (c) flipped left to right (d) upside down only
14. 14.🧺 Which of these is needed for the periscope? (a) a balloon (b) an empty juice carton (c) turmeric powder (d) a battery cell
15. 15.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) sticky tape (b) two small mirrors (c) a pencil (d) vinegar
16. 16.🛟 You must never point a periscope or a mirror at ___. (a) the Sun (b) a wall (c) a tree (d) a friend’s toy
17. 17.True or false: a mirror reflects light well. (a) True (b) False
18. 18.🧺 Which of these is needed for the periscope? (a) vinegar (b) a pencil (c) yeast (d) a magnet
19. 19.⚖️ 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) False (b) True
20. 20.⚖️ 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 same carton (c) the object we look at (d) the angle of the mirrors
21. 21.⚖️ 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 light (b) how clear the view is (c) the same carton (d) the angle of the mirrors
22. 22.🔭 How many times does light bounce off a mirror in a simple periscope?
23. 23.True or false: a rough wooden board reflects light well. (a) True (b) False
24. 24.🔭 Does black cloth reflect light well or poorly? (a) reflects light well (b) reflects light poorly
25. 25.True or false: a battery cell is needed for the periscope. (a) False (b) True
26. 26.True or false: a ruler is not needed for the periscope. (a) False (b) True
27. 27.⚖️ 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 measure it (b) we change it (c) we keep it the same
28. 28.🧺 Which of these is needed for the periscope? (a) a magnet (b) two small mirrors (c) yeast (d) vinegar
29. 29.🔭 At what angle are the mirrors set in a simple periscope? (a) 10 degrees (b) 90 degrees (c) 180 degrees (d) 45 degrees
30. 30.🔭 What does a periscope let you do? (a) see in the dark (b) hear far sounds (c) see germs (d) see over a wall
31. 31.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) a ruler (b) an empty juice carton (c) a pencil (d) a balloon
32. 32.⚖️ Fair test — does the angle of the mirrors change how clearly you see? True or false: the same light is kept the same. (a) False (b) True
33. 33.🧺 Do we need an empty juice carton for the periscope? (a) not needed (b) needed
34. 34.🛟 Which mirrors are safest for a children’s periscope? (a) broken glass bits (b) plastic safety mirrors (c) loose glass panes (d) big wall mirrors
35. 35.🧺 Which of these is not needed for the periscope? (a) sticky tape (b) turmeric powder (c) a pencil (d) an empty juice carton
36. 36.🔭 Does dark soil reflect light well or poorly? (a) reflects light poorly (b) reflects light well
37. 37.True or false: a pencil is not needed for the periscope. (a) True (b) False
38. 38.🧺 Do we need a pencil for the periscope? (a) needed (b) not needed
39. 39.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) sticky tape (b) turmeric powder (c) an empty juice carton (d) two small mirrors
40. 40.🔭 Which of these reflects light poorly? (a) a mirror (b) aluminium foil (c) a dull brick (d) still clear water

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