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Shadow and Sundial Experiment Worksheet

Science experiments lesson 27: Shadows and a sundial · Set 69 · 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.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the same spot is kept the same. (a) True (b) False
  2. 2.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the stick kept upright is what we measure. (a) True (b) False
  3. 3.True or false: a mirror is needed for the shadow clock. (a) True (b) False
  4. 4.🔍 Which is the odd one out? (a) butter paper (b) frosted glass (c) oily paper (d) a wooden board
  5. 5.🛟 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
  6. 6.True or false: a battery cell is not needed for the shadow clock. (a) False (b) True
  7. 7.True or false: turmeric powder is needed for the shadow clock. (a) True (b) False
  8. 8.🔦 Is oily paper opaque, translucent or transparent? (a) opaque (b) transparent (c) translucent
  9. 9.⚖️ 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) shadow length (c) the same stick (d) the same spot
  10. 10.🔮 Predict: the Sun is low in the evening sky. The stick’s shadow is ___. (a) round (b) missing (c) short (d) long
  11. 11.⚖️ 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
  12. 12.True or false: a mirror is not needed for the shadow clock. (a) True (b) False
  13. 13.🧺 Do we need chalk to mark shadows for the shadow clock? (a) needed (b) not needed
  14. 14.True or false: a brick is translucent. (a) True (b) False
  15. 15.⚖️ Fair test — how does the shadow of a stick change through the day? What do we do with “shadow length”? (a) we keep it the same (b) we measure it (c) we change it
  16. 16.🔮 Predict: on a fully cloudy day, the sundial ___. (a) works better (b) runs faster (c) does not work well (d) shows two times
  17. 17.True or false: turmeric powder is not needed for the shadow clock. (a) True (b) False
  18. 18.⚖️ Fair test — how does the shadow of a stick change through the day? What do we do with “the stick kept upright”? (a) we measure it (b) we keep it the same (c) we change it
  19. 19.🧺 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) turmeric powder
  20. 20.True or false: a clock to check is needed for the shadow clock. (a) False (b) True
  21. 21.⚖️ Fair test — how does the shadow of a stick change through the day? What do we do with “the same spot”? (a) we measure it (b) we keep it the same (c) we change it
  22. 22.True or false: yeast is needed for the shadow clock. (a) True (b) False
  23. 23.🔦 Which of these is transparent? (a) oily paper (b) butter paper (c) clean water (d) frosted glass
  24. 24.🔦 Which of these is translucent? (a) butter paper (b) clean water (c) clear glass (d) a book
  25. 25.🔦 Is a brick opaque, translucent or transparent? (a) transparent (b) opaque (c) translucent
  26. 26.True or false: air is transparent. (a) False (b) True
  27. 27.True or false: butter paper is translucent. (a) False (b) True
  28. 28.🌞 When is a stick’s shadow the shortest? (a) late evening (b) early morning (c) at night (d) around noon
  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.🧺 Do we need yeast for the shadow clock? (a) not needed (b) needed
  31. 31.True or false: a book is opaque. (a) False (b) True
  32. 32.🧺 Which of these is not needed for the shadow clock? (a) a sunny open place (b) turmeric powder (c) a straight stick (d) a clock to check
  33. 33.🧺 Which of these is needed for the shadow clock? (a) a magnet (b) a mirror (c) yeast (d) chalk to mark shadows
  34. 34.🔍 Which is the odd one out? (a) a wooden board (b) a brick (c) butter paper (d) a steel plate
  35. 35.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) chalk to mark shadows (b) a balloon (c) a clock to check (d) a sunny open place
  36. 36.⚖️ 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
  37. 37.🔍 Which is the odd one out? (a) your hand (b) a book (c) air (d) a steel plate
  38. 38.🔦 Which of these is opaque? (a) clean water (b) a book (c) butter paper (d) clear glass
  39. 39.🔦 Is clear glass opaque, translucent or transparent? (a) transparent (b) translucent (c) opaque
  40. 40.True or false: your hand is translucent. (a) True (b) False

Answer key

  1. True
  2. False
  3. False
  4. a wooden board
  5. look straight at the Sun
  6. True
  7. False
  8. translucent
  9. the time of day
  10. long
  11. we change it
  12. True
  13. needed
  14. False
  15. we measure it
  16. does not work well
  17. True
  18. we keep it the same
  19. turmeric powder
  20. True
  21. we keep it the same
  22. False
  23. clean water
  24. butter paper
  25. opaque
  26. True
  27. True
  28. around noon
  29. False
  30. not needed
  31. True
  32. turmeric powder
  33. chalk to mark shadows
  34. butter paper
  35. a balloon
  36. we keep it the same
  37. air
  38. a book
  39. transparent
  40. False

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