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Shadow and Sundial Experiment Worksheet

Science experiments lesson 27: Shadows and a sundial · Set 644 · 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.

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  1. 1.🛟 While watching shadows outdoors, what must you never do? (a) wear a cap (b) mark with chalk (c) sit in the shade (d) look straight at the Sun
  2. 2.🛟 What should you wear for a long time in the hot sun? (a) a woollen sweater (b) nothing on your head (c) a raincoat (d) a cap or hat
  3. 3.True or false: a book is transparent. (a) True (b) False
  4. 4.True or false: a steel plate is translucent. (a) True (b) False
  5. 5.True or false: a clock to check is not needed for the shadow clock. (a) False (b) True
  6. 6.🔮 Predict: the Sun is low in the evening sky. The stick’s shadow is ___. (a) missing (b) round (c) short (d) long
  7. 7.🌍 Why does the stick’s shadow move during the day? (a) the stick grows (b) the ground slides (c) Earth keeps spinning (d) the stick walks
  8. 8.🧺 Do we need a battery cell for the shadow clock? (a) needed (b) not needed
  9. 9.🧺 Do we need chalk to mark shadows for the shadow clock? (a) not needed (b) needed
  10. 10.🧺 Do we need a balloon for the shadow clock? (a) needed (b) not needed
  11. 11.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a clock to check (b) a straight stick (c) a battery cell (d) chalk to mark shadows
  12. 12.True or false: chalk to mark shadows is needed for the shadow clock. (a) True (b) False
  13. 13.⚖️ 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
  14. 14.True or false: a straight stick is needed for the shadow clock. (a) False (b) True
  15. 15.🔦 Is a brick opaque, translucent or transparent? (a) translucent (b) transparent (c) opaque
  16. 16.⚖️ 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
  17. 17.⚖️ Fair test — how does the shadow of a stick change through the day? Which of these is what we measure? (a) shadow length (b) the same spot (c) the same stick (d) the stick kept upright
  18. 18.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a sunny open place (b) chalk to mark shadows (c) a clock to check (d) a balloon
  19. 19.⚖️ 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
  20. 20.🔍 Which is the odd one out? (a) oily paper (b) clean water (c) tissue paper (d) frosted glass
  21. 21.🔍 Which is the odd one out? (a) clear plastic film (b) clean water (c) clear glass (d) your hand
  22. 22.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a straight stick (b) a clock to check (c) a mirror (d) chalk to mark shadows
  23. 23.True or false: clear plastic film is transparent. (a) True (b) False
  24. 24.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the time of day is what we measure. (a) True (b) False
  25. 25.🧺 Do we need a straight stick for the shadow clock? (a) not needed (b) needed
  26. 26.⚖️ 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 stick (b) the time of day (c) the stick kept upright (d) the same spot
  27. 27.True or false: clear glass is opaque. (a) False (b) True
  28. 28.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the same stick is what we measure. (a) False (b) True
  29. 29.True or false: a balloon is not needed for the shadow clock. (a) True (b) False
  30. 30.🔍 Which is the odd one out? (a) oily paper (b) tissue paper (c) butter paper (d) a brick
  31. 31.🧺 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) turmeric powder (d) a straight stick
  32. 32.🔦 Is oily paper opaque, translucent or transparent? (a) transparent (b) translucent (c) opaque
  33. 33.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a sunny open place (b) a clock to check (c) a straight stick (d) yeast
  34. 34.🔦 Which of these is transparent? (a) oily paper (b) frosted glass (c) a steel plate (d) air
  35. 35.🔦 Is a steel plate opaque, translucent or transparent? (a) translucent (b) transparent (c) opaque
  36. 36.🔦 Which of these is transparent? (a) clean water (b) tissue paper (c) a brick (d) your hand
  37. 37.True or false: a magnet is needed for the shadow clock. (a) True (b) False
  38. 38.🔮 Predict: on a fully cloudy day, the sundial ___. (a) shows two times (b) runs faster (c) does not work well (d) works better
  39. 39.🧺 Which of these is not needed for the shadow clock? (a) a straight stick (b) a sunny open place (c) a magnet (d) chalk to mark shadows
  40. 40.🔍 Which is the odd one out? (a) clear glass (b) clear plastic film (c) tissue paper (d) clean water

Answer key

  1. look straight at the Sun
  2. a cap or hat
  3. False
  4. False
  5. False
  6. long
  7. Earth keeps spinning
  8. not needed
  9. needed
  10. not needed
  11. a battery cell
  12. True
  13. False
  14. True
  15. opaque
  16. True
  17. shadow length
  18. a balloon
  19. we change it
  20. clean water
  21. your hand
  22. a mirror
  23. True
  24. False
  25. needed
  26. the time of day
  27. False
  28. False
  29. True
  30. a brick
  31. turmeric powder
  32. translucent
  33. yeast
  34. air
  35. opaque
  36. clean water
  37. False
  38. does not work well
  39. a magnet
  40. tissue paper

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