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Shadow and Sundial Experiment Worksheet

Science experiments lesson 27: Shadows and a sundial · Set 989 · 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.🧺 Do we need a battery cell for the shadow clock? (a) not needed (b) needed
  2. 2.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the time of day is the one thing we change. (a) False (b) True
  3. 3.🕰️ What is a sundial used for? (a) measuring rain (b) telling the time (c) weighing things (d) making rainbows
  4. 4.🔦 Is air opaque, translucent or transparent? (a) translucent (b) opaque (c) transparent
  5. 5.🧺 Which of these is needed for the shadow clock? (a) a balloon (b) chalk to mark shadows (c) a battery cell (d) a mirror
  6. 6.⚖️ Fair test — how does the shadow of a stick change through the day? What do we do with “the same stick”? (a) we change it (b) we keep it the same (c) we measure it
  7. 7.🔦 Which of these is opaque? (a) your hand (b) clear plastic film (c) butter paper (d) clean water
  8. 8.🔦 Which of these is transparent? (a) air (b) your hand (c) a steel plate (d) a book
  9. 9.⚖️ 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
  10. 10.⚖️ Fair test — how does the shadow of a stick change through the day? What do we do with “the time of day”? (a) we change it (b) we keep it the same (c) we measure it
  11. 11.🛟 While watching shadows outdoors, what must you never do? (a) wear a cap (b) sit in the shade (c) mark with chalk (d) look straight at the Sun
  12. 12.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a balloon (b) a clock to check (c) a sunny open place (d) chalk to mark shadows
  13. 13.⚖️ Fair test — how does the shadow of a stick change through the day? What do we do with “the same spot”? (a) we change it (b) we measure it (c) we keep it the same
  14. 14.True or false: a clock to check is needed for the shadow clock. (a) True (b) False
  15. 15.🔦 Is your hand opaque, translucent or transparent? (a) translucent (b) transparent (c) opaque
  16. 16.🔦 Which of these is transparent? (a) a book (b) a steel plate (c) your hand (d) clear plastic film
  17. 17.🧺 Which of these is not needed for the shadow clock? (a) a balloon (b) a clock to check (c) chalk to mark shadows (d) a sunny open place
  18. 18.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a clock to check (b) chalk to mark shadows (c) a straight stick (d) a magnet
  19. 19.🧺 Do we need turmeric powder for the shadow clock? (a) needed (b) not needed
  20. 20.True or false: a sunny open place is needed for the shadow clock. (a) False (b) True
  21. 21.🔮 Predict: on a fully cloudy day, the sundial ___. (a) shows two times (b) does not work well (c) works better (d) runs faster
  22. 22.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) yeast (b) chalk to mark shadows (c) a sunny open place (d) a straight stick
  23. 23.🧺 Which of these is needed for the shadow clock? (a) a mirror (b) a balloon (c) a straight stick (d) yeast
  24. 24.True or false: a mirror is needed for the shadow clock. (a) False (b) True
  25. 25.True or false: chalk to mark shadows is needed for the shadow clock. (a) True (b) False
  26. 26.🧺 Do we need a straight stick for the shadow clock? (a) needed (b) not needed
  27. 27.True or false: clear plastic film is translucent. (a) False (b) True
  28. 28.🧺 Do we need a clock to check for the shadow clock? (a) needed (b) not needed
  29. 29.🧺 Do we need chalk to mark shadows for the shadow clock? (a) not needed (b) needed
  30. 30.⚖️ Fair test — how does the shadow of a stick change through the day? Which of these is the one thing we change? (a) shadow length (b) the time of day (c) the same stick (d) the stick kept upright
  31. 31.📘 Why does a shadow form? (a) light bends round it (b) an object blocks light (c) the ground is dark (d) the object is cold
  32. 32.🔦 Is a steel plate opaque, translucent or transparent? (a) translucent (b) opaque (c) transparent
  33. 33.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) turmeric powder (b) a sunny open place (c) a straight stick (d) chalk to mark shadows
  34. 34.🧺 Do we need a balloon for the shadow clock? (a) needed (b) not needed
  35. 35.True or false: a straight stick is needed for the shadow clock. (a) False (b) True
  36. 36.🔍 Which is the odd one out? (a) a steel plate (b) clear glass (c) clean water (d) clear plastic film
  37. 37.🔦 Is tissue paper opaque, translucent or transparent? (a) translucent (b) transparent (c) opaque
  38. 38.True or false: turmeric powder is needed for the shadow clock. (a) True (b) False
  39. 39.🧺 Which of these is not needed for the shadow clock? (a) a straight stick (b) a sunny open place (c) yeast (d) a clock to check
  40. 40.🔍 Which is the odd one out? (a) air (b) oily paper (c) clear glass (d) clear plastic film

Answer key

  1. not needed
  2. True
  3. telling the time
  4. transparent
  5. chalk to mark shadows
  6. we keep it the same
  7. your hand
  8. air
  9. False
  10. we change it
  11. look straight at the Sun
  12. a balloon
  13. we keep it the same
  14. True
  15. opaque
  16. clear plastic film
  17. a balloon
  18. a magnet
  19. not needed
  20. True
  21. does not work well
  22. yeast
  23. a straight stick
  24. False
  25. True
  26. needed
  27. False
  28. needed
  29. needed
  30. the time of day
  31. an object blocks light
  32. opaque
  33. turmeric powder
  34. not needed
  35. True
  36. a steel plate
  37. translucent
  38. False
  39. yeast
  40. oily paper

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