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Shadow and Sundial Experiment Worksheet

Science experiments lesson 27: Shadows and a sundial · Set 607 · 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.🔮 Predict: on a fully cloudy day, the sundial ___. (a) works better (b) shows two times (c) does not work well (d) runs faster
  2. 2.🔍 Which is the odd one out? (a) a book (b) clean water (c) clear glass (d) clear plastic film
  3. 3.⚖️ 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
  4. 4.🔍 Which is the odd one out? (a) a steel plate (b) frosted glass (c) a wooden board (d) a book
  5. 5.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the same spot is kept the same. (a) False (b) True
  6. 6.True or false: tissue paper is translucent. (a) True (b) False
  7. 7.🧺 Do we need turmeric powder for the shadow clock? (a) needed (b) not needed
  8. 8.🛟 While watching shadows outdoors, what must you never do? (a) look straight at the Sun (b) wear a cap (c) mark with chalk (d) sit in the shade
  9. 9.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) chalk to mark shadows (b) a sunny open place (c) a magnet (d) a clock to check
  10. 10.🔦 Is tissue paper opaque, translucent or transparent? (a) opaque (b) translucent (c) transparent
  11. 11.⚖️ Fair test — how does the shadow of a stick change through the day? Which of these is what we measure? (a) the same spot (b) the time of day (c) shadow length (d) the same stick
  12. 12.🔦 Which of these is transparent? (a) a brick (b) your hand (c) butter paper (d) air
  13. 13.🔍 Which is the odd one out? (a) tissue paper (b) frosted glass (c) clean water (d) oily paper
  14. 14.🧺 Do we need a straight stick for the shadow clock? (a) not needed (b) needed
  15. 15.⚖️ Fair test — how does the shadow of a stick change through the day? What do we do with “shadow length”? (a) we change it (b) we keep it the same (c) we measure it
  16. 16.🌞 When is a stick’s shadow the shortest? (a) late evening (b) early morning (c) around noon (d) at night
  17. 17.🔮 Predict: the Sun is low in the evening sky. The stick’s shadow is ___. (a) round (b) missing (c) long (d) short
  18. 18.🧺 Do we need a balloon for the shadow clock? (a) needed (b) not needed
  19. 19.🔦 Is a wooden board opaque, translucent or transparent? (a) transparent (b) translucent (c) opaque
  20. 20.True or false: a book is transparent. (a) True (b) False
  21. 21.⚖️ Fair test — how does the shadow of a stick change through the day? What do we do with “the stick kept upright”? (a) we change it (b) we measure it (c) we keep it the same
  22. 22.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a sunny open place (b) yeast (c) a straight stick (d) chalk to mark shadows
  23. 23.⚖️ Fair test — how does the shadow of a stick change through the day? What do we do with “the time of day”? (a) we measure it (b) we change it (c) we keep it the same
  24. 24.📘 Why does a shadow form? (a) light bends round it (b) the object is cold (c) an object blocks light (d) the ground is dark
  25. 25.🔍 Which is the odd one out? (a) a steel plate (b) your hand (c) a brick (d) air
  26. 26.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the stick kept upright is kept the same. (a) False (b) True
  27. 27.🧺 Which of these is needed for the shadow clock? (a) a mirror (b) turmeric powder (c) a sunny open place (d) yeast
  28. 28.⚖️ Fair test — how does the shadow of a stick change through the day? Which of these is kept the same? (a) shadow length (b) the same spot (c) the time of day
  29. 29.True or false: a clock to check is needed for the shadow clock. (a) True (b) False
  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) the same spot (b) the same stick (c) the time of day (d) the stick kept upright
  31. 31.🧺 Do we need a mirror for the shadow clock? (a) needed (b) not needed
  32. 32.True or false: a straight stick is needed for the shadow clock. (a) True (b) False
  33. 33.🧺 Do we need a clock to check for the shadow clock? (a) needed (b) not needed
  34. 34.⚖️ 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) False (b) True
  35. 35.🧺 Do we need a sunny open place for the shadow clock? (a) not needed (b) needed
  36. 36.🧺 Do we need a battery cell for the shadow clock? (a) needed (b) not needed
  37. 37.True or false: chalk to mark shadows is not needed for the shadow clock. (a) False (b) True
  38. 38.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a straight stick (b) a clock to check (c) chalk to mark shadows (d) a balloon
  39. 39.🧺 Which of these is not needed for the shadow clock? (a) a sunny open place (b) chalk to mark shadows (c) a clock to check (d) turmeric powder
  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. does not work well
  2. a book
  3. we keep it the same
  4. frosted glass
  5. True
  6. True
  7. not needed
  8. look straight at the Sun
  9. a magnet
  10. translucent
  11. shadow length
  12. air
  13. clean water
  14. needed
  15. we measure it
  16. around noon
  17. long
  18. not needed
  19. opaque
  20. False
  21. we keep it the same
  22. yeast
  23. we change it
  24. an object blocks light
  25. air
  26. True
  27. a sunny open place
  28. the same spot
  29. True
  30. the time of day
  31. not needed
  32. True
  33. needed
  34. False
  35. needed
  36. not needed
  37. False
  38. a balloon
  39. turmeric powder
  40. False

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