Periscope STEM Project Worksheet

Science experiments lesson 28: Mirror periscope · Set 382 · 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) a ruler (b) a pencil (c) an empty juice carton (d) vinegar
2. 2.⚖️ 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 same carton (c) the angle of the mirrors
3. 3.🧺 Do we need a ruler for the periscope? (a) not needed (b) needed
4. 4.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) a ruler (b) an empty juice carton (c) turmeric powder (d) a pencil
5. 5.⚖️ 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 carton (b) the same light (c) the same mirrors (d) the angle of the mirrors
6. 6.🧺 Which of these is needed for the periscope? (a) vinegar (b) a battery cell (c) a magnet (d) an empty juice carton
7. 7.🔭 At what angle are the mirrors set in a simple periscope? (a) 180 degrees (b) 90 degrees (c) 45 degrees (d) 10 degrees
8. 8.🔍 Which is the odd one out? (a) still clear water (b) aluminium foil (c) a mirror (d) dark soil
9. 9.True or false: a mirror reflects light well. (a) True (b) False
10. 10.True or false: a magnet is needed for the periscope. (a) True (b) False
11. 11.⚖️ 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 keep it the same (b) we measure it (c) we change it
12. 12.🧺 Which of these is not needed for the periscope? (a) sticky tape (b) a pencil (c) an empty juice carton (d) a balloon
13. 13.🧺 Do we need two small mirrors for the periscope? (a) needed (b) not needed
14. 14.🧺 Which of these is needed for the periscope? (a) a balloon (b) turmeric powder (c) a magnet (d) two small mirrors
15. 15.True or false: a shiny steel plate reflects light well. (a) False (b) True
16. 16.🔭 How many mirrors does a simple periscope use?
17. 17.🔭 Does a mirror reflect light well or poorly? (a) reflects light poorly (b) reflects light well
18. 18.🔍 Which is the odd one out? (a) a rough wooden board (b) a shiny steel plate (c) a mirror (d) aluminium foil
19. 19.True or false: vinegar is needed for the periscope. (a) False (b) True
20. 20.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) a magnet (b) a ruler (c) two small mirrors (d) a pencil
21. 21.🔭 Which of these reflects light well? (a) a dull brick (b) a rough wooden board (c) aluminium foil (d) black cloth
22. 22.🧺 Do we need turmeric powder for the periscope? (a) needed (b) not needed
23. 23.🔮 Predict: you make the periscope tube twice as tall. You can see over ___. (a) only short walls (b) taller walls (c) nothing at all (d) the ground
24. 24.🔭 What does a periscope let you do? (a) see germs (b) see in the dark (c) see over a wall (d) hear far sounds
25. 25.True or false: dark soil reflects light poorly. (a) False (b) True
26. 26.🛟 You must never point a periscope or a mirror at ___. (a) the Sun (b) a friend’s toy (c) a tree (d) a wall
27. 27.⚖️ 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) how clear the view is (c) the object we look at
28. 28.🧺 Which of these is needed for the periscope? (a) a magnet (b) a balloon (c) turmeric powder (d) a ruler
29. 29.🛟 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
30. 30.True or false: a pencil is needed for the periscope. (a) False (b) True
31. 31.🔭 Does a dull brick reflect light well or poorly? (a) reflects light poorly (b) reflects light well
32. 32.🔮 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
33. 33.🛟 Who should cut the holes in the juice carton? (a) a friend who is running (b) nobody needs to (c) the youngest child (d) a grown-up
34. 34.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) a battery cell (b) two small mirrors (c) sticky tape (d) an empty juice carton
35. 35.🧺 Which of these is not needed for the periscope? (a) two small mirrors (b) an empty juice carton (c) a pencil (d) a battery cell
36. 36.🔍 Which is the odd one out? (a) a rough wooden board (b) black cloth (c) dark soil (d) a shiny steel plate
37. 37.🧺 Do we need a battery cell for the periscope? (a) not needed (b) needed
38. 38.True or false: an empty juice carton is needed for the periscope. (a) False (b) True
39. 39.⚖️ Fair test — does the angle of the mirrors change how clearly you see? True or false: how clear the view is is kept the same. (a) False (b) True
40. 40.⚖️ 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 angle of the mirrors (d) the same mirrors

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