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Shadow and Sundial Experiment Worksheet

Science experiments lesson 27: Shadows and a sundial · Set 735 · 40 questions
TalentJR

What you do (Shadows point away from the Sun): 1. Stand the stick upright in the ground in an open sunny place. 2. Every hour, mark the tip of the shadow with chalk and write the time. 3. Measure the length of each shadow. 4. Wear a cap and never look straight at the Sun.

NameDateTime takenScore ___ / 40
  1. 1.True or false: clear plastic film is transparent. (a) True (b) False
  2. 2.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a magnet (b) a straight stick (c) a clock to check (d) a sunny open place
  3. 3.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) yeast (b) a sunny open place (c) chalk to mark shadows (d) a straight stick
  4. 4.🔦 Which of these is translucent? (a) clear plastic film (b) clear glass (c) tissue paper (d) a wooden board
  5. 5.🧺 Do we need a straight stick for the shadow clock? (a) not needed (b) needed
  6. 6.🛟 While watching shadows outdoors, what must you never do? (a) sit in the shade (b) look straight at the Sun (c) wear a cap (d) mark with chalk
  7. 7.True or false: a book is translucent. (a) False (b) True
  8. 8.🔦 Is clear plastic film opaque, translucent or transparent? (a) transparent (b) translucent (c) opaque
  9. 9.True or false: tissue paper is translucent. (a) True (b) False
  10. 10.True or false: a balloon is not needed for the shadow clock. (a) False (b) True
  11. 11.🔦 Which of these is opaque? (a) tissue paper (b) oily paper (c) clear plastic film (d) a wooden board
  12. 12.🔦 Which of these is opaque? (a) a book (b) clean water (c) frosted glass (d) clear glass
  13. 13.🧺 Which of these is not needed for the shadow clock? (a) chalk to mark shadows (b) yeast (c) a clock to check (d) a straight stick
  14. 14.🧺 Which of these is needed for the shadow clock? (a) a mirror (b) a battery cell (c) a magnet (d) chalk to mark shadows
  15. 15.🧺 Which of these is needed for the shadow clock? (a) a sunny open place (b) a battery cell (c) a magnet (d) turmeric powder
  16. 16.⚖️ Fair test — how does the shadow of a stick change through the day? Which of these is the one thing we change? (a) the time of day (b) the same stick (c) shadow length (d) the same spot
  17. 17.True or false: a wooden board is opaque. (a) False (b) True
  18. 18.⚖️ Fair test — how does the shadow of a stick change through the day? What do we do with “the time of day”? (a) we keep it the same (b) we measure it (c) we change it
  19. 19.🔍 Which is the odd one out? (a) a wooden board (b) a brick (c) a steel plate (d) clear glass
  20. 20.🔦 Is oily paper opaque, translucent or transparent? (a) opaque (b) translucent (c) transparent
  21. 21.🔦 Is frosted glass opaque, translucent or transparent? (a) transparent (b) opaque (c) translucent
  22. 22.⚖️ Fair test — how does the shadow of a stick change through the day? What do we do with “the same stick”? (a) we measure it (b) we change it (c) we keep it the same
  23. 23.⚖️ Fair test — how does the shadow of a stick change through the day? What do we do with “the same spot”? (a) we keep it the same (b) we change it (c) we measure it
  24. 24.🧺 Which of these is not needed for the shadow clock? (a) a sunny open place (b) a battery cell (c) chalk to mark shadows (d) a straight stick
  25. 25.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the same spot is what we measure. (a) False (b) True
  26. 26.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the same stick is the one thing we change. (a) True (b) False
  27. 27.⚖️ Fair test — how does the shadow of a stick change through the day? Which of these is what we measure? (a) the stick kept upright (b) shadow length (c) the time of day (d) the same stick
  28. 28.True or false: a mirror is not needed for the shadow clock. (a) False (b) True
  29. 29.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the time of day is kept the same. (a) True (b) False
  30. 30.True or false: a sunny open place is needed for the shadow clock. (a) True (b) False
  31. 31.True or false: a magnet is needed for the shadow clock. (a) True (b) False
  32. 32.🔦 Which of these is transparent? (a) a book (b) your hand (c) a brick (d) air
  33. 33.True or false: a brick is opaque. (a) False (b) True
  34. 34.True or false: turmeric powder is not needed for the shadow clock. (a) True (b) False
  35. 35.True or false: a balloon is needed for the shadow clock. (a) True (b) False
  36. 36.🔮 Predict: on a fully cloudy day, the sundial ___. (a) works better (b) shows two times (c) runs faster (d) does not work well
  37. 37.🔍 Which is the odd one out? (a) tissue paper (b) frosted glass (c) a wooden board (d) oily paper
  38. 38.🧺 Which of these is needed for the shadow clock? (a) a balloon (b) a magnet (c) turmeric powder (d) a clock to check
  39. 39.🕰️ What is a sundial used for? (a) weighing things (b) making rainbows (c) measuring rain (d) telling the time
  40. 40.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: shadow length is kept the same. (a) False (b) True

Answer key

  1. True
  2. a magnet
  3. yeast
  4. tissue paper
  5. needed
  6. look straight at the Sun
  7. False
  8. transparent
  9. True
  10. True
  11. a wooden board
  12. a book
  13. yeast
  14. chalk to mark shadows
  15. a sunny open place
  16. the time of day
  17. True
  18. we change it
  19. clear glass
  20. translucent
  21. translucent
  22. we keep it the same
  23. we keep it the same
  24. a battery cell
  25. False
  26. False
  27. shadow length
  28. True
  29. False
  30. True
  31. False
  32. air
  33. True
  34. True
  35. False
  36. does not work well
  37. a wooden board
  38. a clock to check
  39. telling the time
  40. False

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