Periscope STEM Project Worksheet

Science experiments lesson 28: Mirror periscope · Set 607 · 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? Which of these is what we measure? (a) the same carton (b) how clear the view is (c) the same mirrors (d) the angle of the mirrors
2. 2.🔭 Why must the two mirrors face each other and be parallel? (a) so light reaches the eye (b) to make it heavy (c) so it looks shiny (d) so it can float
3. 3.True or false: turmeric powder is needed for the periscope. (a) True (b) False
4. 4.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) a balloon (b) a ruler (c) an empty juice carton (d) two small mirrors
5. 5.🔭 Does a mirror reflect light well or poorly? (a) reflects light well (b) reflects light poorly
6. 6.🛟 Which mirrors are safest for a children’s periscope? (a) loose glass panes (b) broken glass bits (c) big wall mirrors (d) plastic safety mirrors
7. 7.🔭 What does a periscope let you do? (a) see in the dark (b) see germs (c) see over a wall (d) hear far sounds
8. 8.True or false: a balloon is needed for the periscope. (a) True (b) False
9. 9.🔍 Which is the odd one out? (a) a dull brick (b) dark soil (c) a rough wooden board (d) a mirror
10. 10.🔭 Does a shiny steel plate reflect light well or poorly? (a) reflects light well (b) reflects light poorly
11. 11.⚖️ Fair test — does the angle of the mirrors change how clearly you see? True or false: how clear the view is is the one thing we change. (a) False (b) True
12. 12.⚖️ Fair test — does the angle of the mirrors change how clearly you see? What do we do with “the same carton”? (a) we measure it (b) we change it (c) we keep it the same
13. 13.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) a magnet (b) an empty juice carton (c) two small mirrors (d) a pencil
14. 14.🧺 Do we need a balloon for the periscope? (a) not needed (b) needed
15. 15.🛟 You must never point a periscope or a mirror at ___. (a) a friend’s toy (b) the Sun (c) a wall (d) a tree
16. 16.⚖️ Fair test — does the angle of the mirrors change how clearly you see? What do we do with “the same mirrors”? (a) we change it (b) we keep it the same (c) we measure it
17. 17.True or false: a balloon is not needed for the periscope. (a) True (b) False
18. 18.🧺 Which of these is not needed for the periscope? (a) an empty juice carton (b) a ruler (c) a magnet (d) two small mirrors
19. 19.⚖️ Fair test — does the angle of the mirrors change how clearly you see? True or false: the same carton is what we measure. (a) True (b) False
20. 20.🧺 Do we need sticky tape for the periscope? (a) not needed (b) needed
21. 21.⚖️ 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
22. 22.True or false: dark soil reflects light poorly. (a) True (b) False
23. 23.📘 Light bouncing off a mirror is called ___. (a) refraction (b) evaporation (c) magnetism (d) reflection
24. 24.🔍 Which is the odd one out? (a) black cloth (b) still clear water (c) dark soil (d) a rough wooden board
25. 25.🔭 Which of these reflects light well? (a) black cloth (b) a dull brick (c) dark soil (d) aluminium foil
26. 26.🧺 Do we need turmeric powder for the periscope? (a) needed (b) not needed
27. 27.🧺 Do we need a magnet for the periscope? (a) not needed (b) needed
28. 28.🧺 Do we need vinegar for the periscope? (a) not needed (b) needed
29. 29.True or false: vinegar is not needed for the periscope. (a) True (b) False
30. 30.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) two small mirrors (b) sticky tape (c) vinegar (d) an empty juice carton
31. 31.🧺 Do we need yeast for the periscope? (a) needed (b) not needed
32. 32.True or false: yeast is not needed for the periscope. (a) True (b) False
33. 33.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) an empty juice carton (b) a ruler (c) sticky tape (d) turmeric powder
34. 34.🔍 Which is the odd one out? (a) dark soil (b) aluminium foil (c) a dull brick (d) a rough wooden board
35. 35.⚖️ Fair test — does the angle of the mirrors change how clearly you see? Which of these is kept the same? (a) the same carton (b) the angle of the mirrors (c) how clear the view is
36. 36.🔭 Who uses a periscope to look above the water? (a) a farmer (b) a submarine crew (c) a baker (d) a pilot in a plane
37. 37.⚖️ 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) the angle of the mirrors (c) the same carton (d) the object we look at
38. 38.🔮 Predict: you cover the top mirror with paper. What do you see? (a) only darkness (b) a brighter view (c) a rainbow (d) two pictures
39. 39.🔭 Which of these reflects light poorly? (a) aluminium foil (b) a shiny steel plate (c) a mirror (d) a dull brick
40. 40.True or false: sticky tape is not needed for the periscope. (a) True (b) False

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