Periscope STEM Project Worksheet

Science experiments lesson 28: Mirror periscope · Set 993 · 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.🧺 Which of these is needed for the periscope? (a) a balloon (b) a magnet (c) a battery cell (d) sticky tape
2. 2.🔭 Does a mirror reflect light well or poorly? (a) reflects light poorly (b) reflects light well
3. 3.🔮 Predict: you hold a written word up to a mirror. The letters look ___. (a) much bigger (b) in colour (c) flipped left to right (d) upside down only
4. 4.True or false: a balloon is needed for the periscope. (a) False (b) True
5. 5.🔍 Which is the odd one out? (a) still clear water (b) black cloth (c) a dull brick (d) dark soil
6. 6.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) a pencil (b) yeast (c) a ruler (d) sticky tape
7. 7.🧺 Do we need two small mirrors for the periscope? (a) needed (b) not needed
8. 8.🧺 Do we need sticky tape for the periscope? (a) needed (b) not needed
9. 9.🔭 At what angle are the mirrors set in a simple periscope? (a) 180 degrees (b) 90 degrees (c) 10 degrees (d) 45 degrees
10. 10.🧺 Which of these is needed for the periscope? (a) a battery cell (b) a balloon (c) turmeric powder (d) two small mirrors
11. 11.🔭 Which of these reflects light well? (a) a dull brick (b) dark soil (c) black cloth (d) still clear water
12. 12.🔮 Predict: you cover the top mirror with paper. What do you see? (a) a brighter view (b) two pictures (c) a rainbow (d) only darkness
13. 13.🧺 Do we need a magnet for the periscope? (a) not needed (b) needed
14. 14.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) a magnet (b) sticky tape (c) a ruler (d) an empty juice carton
15. 15.🔭 How many mirrors does a simple periscope use?
16. 16.⚖️ Fair test — does the angle of the mirrors change how clearly you see? True or false: the angle of the mirrors is kept the same. (a) True (b) False
17. 17.🔍 Which is the odd one out? (a) aluminium foil (b) still clear water (c) a shiny steel plate (d) a dull brick
18. 18.🔭 How many times does light bounce off a mirror in a simple periscope?
19. 19.🛟 Who should cut the holes in the juice carton? (a) nobody needs to (b) a grown-up (c) a friend who is running (d) the youngest child
20. 20.🔮 Predict: you make the periscope tube twice as tall. You can see over ___. (a) nothing at all (b) taller walls (c) the ground (d) only short walls
21. 21.🧺 Do we need a balloon for the periscope? (a) not needed (b) needed
22. 22.🔍 Which is the odd one out? (a) a rough wooden board (b) dark soil (c) black cloth (d) aluminium foil
23. 23.True or false: an empty juice carton is needed for the periscope. (a) False (b) True
24. 24.⚖️ 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 light (c) how clear the view is (d) the angle of the mirrors
25. 25.True or false: a pencil is needed for the periscope. (a) True (b) False
26. 26.🔭 Which of these reflects light well? (a) dark soil (b) a rough wooden board (c) a dull brick (d) a mirror
27. 27.⚖️ Fair test — does the angle of the mirrors change how clearly you see? Which of these is what we measure? (a) the angle of the mirrors (b) the same carton (c) how clear the view is (d) the same mirrors
28. 28.True or false: yeast is needed for the periscope. (a) False (b) True
29. 29.🧺 Which of these is not needed for the periscope? (a) yeast (b) two small mirrors (c) a ruler (d) sticky tape
30. 30.🔭 Does black cloth reflect light well or poorly? (a) reflects light poorly (b) reflects light well
31. 31.🧺 Do we need vinegar for the periscope? (a) not needed (b) needed
32. 32.🧺 Which of these is not needed for the periscope? (a) a magnet (b) a pencil (c) a ruler (d) two small mirrors
33. 33.True or false: vinegar is needed for the periscope. (a) False (b) True
34. 34.🔭 Does aluminium foil reflect light well or poorly? (a) reflects light well (b) reflects light poorly
35. 35.🔭 Which of these reflects light well? (a) a rough wooden board (b) a shiny steel plate (c) black cloth (d) dark soil
36. 36.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) a ruler (b) two small mirrors (c) turmeric powder (d) an empty juice carton
37. 37.🧺 Which of these is needed for the periscope? (a) a battery cell (b) yeast (c) a balloon (d) an empty juice carton
38. 38.🔭 Why must the two mirrors face each other and be parallel? (a) so it can float (b) so light reaches the eye (c) to make it heavy (d) so it looks shiny
39. 39.🔭 Which of these reflects light poorly? (a) still clear water (b) a dull brick (c) aluminium foil (d) a shiny steel plate
40. 40.🔍 Which is the odd one out? (a) aluminium foil (b) still clear water (c) dark soil (d) a mirror

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