Periscope STEM Project Worksheet

Science experiments lesson 28: Mirror periscope · Set 643 · 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: an empty juice carton is needed for the periscope. (a) True (b) False
2. 2.🔮 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
3. 3.🔭 Which of these reflects light poorly? (a) aluminium foil (b) a shiny steel plate (c) a rough wooden board (d) still clear water
4. 4.True or false: two small mirrors is not needed for the periscope. (a) True (b) False
5. 5.🧺 Which of these is not needed for the periscope? (a) a battery cell (b) a pencil (c) an empty juice carton (d) sticky tape
6. 6.🧺 Which of these is not needed for the periscope? (a) a pencil (b) a ruler (c) turmeric powder (d) an empty juice carton
7. 7.🔭 Does a dull brick reflect light well or poorly? (a) reflects light poorly (b) reflects light well
8. 8.🧺 Which of these is needed for the periscope? (a) a magnet (b) vinegar (c) turmeric powder (d) a pencil
9. 9.🔭 Which of these reflects light poorly? (a) a shiny steel plate (b) dark soil (c) still clear water (d) aluminium foil
10. 10.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) vinegar (b) an empty juice carton (c) sticky tape (d) a pencil
11. 11.🧺 Which of these is needed for the periscope? (a) yeast (b) a magnet (c) a battery cell (d) a ruler
12. 12.🧺 Which of these is not needed for the periscope? (a) vinegar (b) an empty juice carton (c) a ruler (d) two small mirrors
13. 13.🔭 Which of these reflects light poorly? (a) a shiny steel plate (b) a dull brick (c) a mirror (d) still clear water
14. 14.🔍 Which is the odd one out? (a) a mirror (b) a shiny steel plate (c) still clear water (d) black cloth
15. 15.🔮 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
16. 16.True or false: a battery cell is needed for the periscope. (a) False (b) True
17. 17.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) an empty juice carton (b) a ruler (c) a pencil (d) a balloon
18. 18.🧺 Do we need a ruler for the periscope? (a) needed (b) not needed
19. 19.True or false: a rough wooden board reflects light poorly. (a) True (b) False
20. 20.🔭 How many mirrors does a simple periscope use?
21. 21.🔭 Does a rough wooden board reflect light well or poorly? (a) reflects light well (b) reflects light poorly
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) the angle of the mirrors (b) how clear the view is (c) the same light (d) the object we look at
23. 23.🧺 Do we need sticky tape for the periscope? (a) not needed (b) needed
24. 24.🔭 What does a periscope let you do? (a) see germs (b) see over a wall (c) see in the dark (d) hear far sounds
25. 25.True or false: a ruler is needed for the periscope. (a) False (b) True
26. 26.🛟 Which mirrors are safest for a children’s periscope? (a) plastic safety mirrors (b) big wall mirrors (c) broken glass bits (d) loose glass panes
27. 27.⚖️ 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
28. 28.🔭 At what angle are the mirrors set in a simple periscope? (a) 10 degrees (b) 90 degrees (c) 45 degrees (d) 180 degrees
29. 29.True or false: black cloth reflects light poorly. (a) True (b) False
30. 30.True or false: a rough wooden board reflects light well. (a) True (b) False
31. 31.🔍 Which is the odd one out? (a) a dull brick (b) a mirror (c) still clear water (d) aluminium foil
32. 32.🛟 Who should cut the holes in the juice carton? (a) nobody needs to (b) the youngest child (c) a friend who is running (d) a grown-up
33. 33.🔭 Does black cloth reflect light well or poorly? (a) reflects light poorly (b) reflects light well
34. 34.🔮 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
35. 35.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) a pencil (b) a ruler (c) an empty juice carton (d) a battery cell
36. 36.🧺 Do we need yeast for the periscope? (a) needed (b) not needed
37. 37.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) two small mirrors (b) a ruler (c) an empty juice carton (d) a magnet
38. 38.🧺 Do we need an empty juice carton for the periscope? (a) not needed (b) needed
39. 39.⚖️ Fair test — does the angle of the mirrors change how clearly you see? True or false: the same light is the one thing we change. (a) False (b) True
40. 40.⚖️ 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

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