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Shadow and Sundial Experiment Worksheet

Science experiments lesson 27: Shadows and a sundial · Set 372 · 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.🛟 What should you wear for a long time in the hot sun? (a) a woollen sweater (b) nothing on your head (c) a cap or hat (d) a raincoat
  2. 2.⚖️ Fair test — how does the shadow of a stick change through the day? What do we do with “the same stick”? (a) we keep it the same (b) we change it (c) we measure it
  3. 3.⚖️ 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
  4. 4.True or false: a magnet is needed for the shadow clock. (a) False (b) True
  5. 5.🧺 Which of these is needed for the shadow clock? (a) a sunny open place (b) turmeric powder (c) a balloon (d) a mirror
  6. 6.🌍 Why does the stick’s shadow move during the day? (a) the stick grows (b) the ground slides (c) the stick walks (d) Earth keeps spinning
  7. 7.True or false: butter paper is translucent. (a) True (b) False
  8. 8.🔦 Which of these is translucent? (a) clear glass (b) clear plastic film (c) tissue paper (d) a wooden board
  9. 9.True or false: turmeric powder is needed for the shadow clock. (a) True (b) False
  10. 10.⚖️ 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 stick (c) the time of day
  11. 11.🧺 Which of these is needed for the shadow clock? (a) a magnet (b) a clock to check (c) a mirror (d) yeast
  12. 12.True or false: a clock to check is not 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 time of day is kept the same. (a) True (b) False
  14. 14.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) chalk to mark shadows (b) a straight stick (c) a clock to check (d) yeast
  15. 15.🔦 Is a steel plate opaque, translucent or transparent? (a) opaque (b) translucent (c) transparent
  16. 16.True or false: tissue paper is opaque. (a) True (b) False
  17. 17.🔦 Is a wooden board opaque, translucent or transparent? (a) translucent (b) opaque (c) transparent
  18. 18.🔮 Predict: the Sun is low in the evening sky. The stick’s shadow is ___. (a) missing (b) short (c) long (d) round
  19. 19.True or false: your hand is translucent. (a) True (b) False
  20. 20.🧺 Do we need a balloon for the shadow clock? (a) not needed (b) needed
  21. 21.🔦 Is clear glass opaque, translucent or transparent? (a) translucent (b) opaque (c) transparent
  22. 22.🔦 Is clean water opaque, translucent or transparent? (a) transparent (b) opaque (c) translucent
  23. 23.⚖️ 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) shadow length (c) the time of day (d) the stick kept upright
  24. 24.🔦 Is frosted glass opaque, translucent or transparent? (a) transparent (b) translucent (c) opaque
  25. 25.🧺 Do we need a sunny open place 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 stick kept upright (b) the same stick (c) the time of day (d) shadow length
  27. 27.🛟 While watching shadows outdoors, what must you never do? (a) look straight at the Sun (b) sit in the shade (c) wear a cap (d) mark with chalk
  28. 28.🔦 Which of these is transparent? (a) your hand (b) a wooden board (c) clear glass (d) a book
  29. 29.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a clock to check (b) a balloon (c) chalk to mark shadows (d) a sunny open place
  30. 30.🔦 Which of these is opaque? (a) clear glass (b) frosted glass (c) a book (d) tissue paper
  31. 31.🔍 Which is the odd one out? (a) tissue paper (b) your hand (c) a book (d) a wooden board
  32. 32.🧺 Do we need chalk to mark shadows for the shadow clock? (a) needed (b) not needed
  33. 33.🔦 Is oily paper opaque, translucent or transparent? (a) transparent (b) translucent (c) opaque
  34. 34.🔍 Which is the odd one out? (a) oily paper (b) butter paper (c) frosted glass (d) clean water
  35. 35.🔦 Is a book opaque, translucent or transparent? (a) opaque (b) transparent (c) translucent
  36. 36.🔦 Is a brick opaque, translucent or transparent? (a) opaque (b) transparent (c) translucent
  37. 37.True or false: a clock to check is needed for the shadow clock. (a) False (b) True
  38. 38.🔮 Predict: on a fully cloudy day, the sundial ___. (a) runs faster (b) shows two times (c) works better (d) does not work well
  39. 39.⚖️ 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 change it (c) we keep it the same
  40. 40.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a magnet (b) a clock to check (c) chalk to mark shadows (d) a straight stick

Answer key

  1. a cap or hat
  2. we keep it the same
  3. we change it
  4. False
  5. a sunny open place
  6. Earth keeps spinning
  7. True
  8. tissue paper
  9. False
  10. the same stick
  11. a clock to check
  12. False
  13. False
  14. yeast
  15. opaque
  16. False
  17. opaque
  18. long
  19. False
  20. not needed
  21. transparent
  22. transparent
  23. shadow length
  24. translucent
  25. needed
  26. the time of day
  27. look straight at the Sun
  28. clear glass
  29. a balloon
  30. a book
  31. tissue paper
  32. needed
  33. translucent
  34. clean water
  35. opaque
  36. opaque
  37. True
  38. does not work well
  39. we keep it the same
  40. a magnet

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