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Shadow and Sundial Experiment Worksheet

Science experiments lesson 27: Shadows and a sundial · Set 455 · 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.🔦 Is clean water opaque, translucent or transparent? (a) translucent (b) transparent (c) opaque
  2. 2.⚖️ 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
  3. 3.🔦 Which of these is translucent? (a) frosted glass (b) a book (c) clean water (d) your hand
  4. 4.🧺 Which of these is needed for the shadow clock? (a) chalk to mark shadows (b) a battery cell (c) a magnet (d) turmeric powder
  5. 5.True or false: a magnet is not needed for the shadow clock. (a) False (b) True
  6. 6.True or false: butter paper is transparent. (a) True (b) False
  7. 7.🛟 What should you wear for a long time in the hot sun? (a) a raincoat (b) nothing on your head (c) a woollen sweater (d) a cap or hat
  8. 8.🕰️ What is a sundial used for? (a) telling the time (b) making rainbows (c) weighing things (d) measuring rain
  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 same spot (b) the time of day (c) the same stick (d) the stick kept upright
  10. 10.🔦 Which of these is transparent? (a) clean water (b) a brick (c) a book (d) a steel plate
  11. 11.True or false: a steel plate is translucent. (a) True (b) False
  12. 12.🧺 Which of these is needed for the shadow clock? (a) a battery cell (b) a sunny open place (c) a balloon (d) turmeric powder
  13. 13.🛟 While watching shadows outdoors, what must you never do? (a) mark with chalk (b) sit in the shade (c) wear a cap (d) look straight at the Sun
  14. 14.🔦 Which of these is translucent? (a) a steel plate (b) your hand (c) a book (d) tissue paper
  15. 15.🔦 Is tissue paper opaque, translucent or transparent? (a) transparent (b) opaque (c) translucent
  16. 16.⚖️ Fair test — how does the shadow of a stick change through the day? Which of these is kept the same? (a) the time of day (b) shadow length (c) the stick kept upright
  17. 17.🧺 Which of these is needed for the shadow clock? (a) turmeric powder (b) a clock to check (c) yeast (d) a magnet
  18. 18.⚖️ Fair test — how does the shadow of a stick change through the day? Which of these is kept the same? (a) the time of day (b) shadow length (c) the same spot
  19. 19.🧺 Do we need yeast for the shadow clock? (a) not needed (b) needed
  20. 20.🧺 Do we need a mirror for the shadow clock? (a) needed (b) not needed
  21. 21.🔦 Is a brick opaque, translucent or transparent? (a) opaque (b) transparent (c) translucent
  22. 22.🧺 Do we need a clock to check for the shadow clock? (a) needed (b) not needed
  23. 23.🔦 Is your hand opaque, translucent or transparent? (a) translucent (b) opaque (c) transparent
  24. 24.True or false: butter paper is translucent. (a) False (b) True
  25. 25.📘 Why does a shadow form? (a) light bends round it (b) the ground is dark (c) the object is cold (d) an object blocks light
  26. 26.True or false: yeast is needed for the shadow clock. (a) True (b) False
  27. 27.True or false: chalk to mark shadows is needed for the shadow clock. (a) False (b) True
  28. 28.⚖️ 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) True (b) False
  29. 29.🔦 Is a wooden board opaque, translucent or transparent? (a) transparent (b) opaque (c) translucent
  30. 30.⚖️ 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
  31. 31.⚖️ 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 keep it the same (c) we change it
  32. 32.🔦 Which of these is transparent? (a) a steel plate (b) oily paper (c) clear plastic film (d) a wooden board
  33. 33.True or false: a book is translucent. (a) False (b) True
  34. 34.🌍 Why does the stick’s shadow move during the day? (a) the stick grows (b) Earth keeps spinning (c) the ground slides (d) the stick walks
  35. 35.🧺 Do we need a magnet for the shadow clock? (a) not needed (b) needed
  36. 36.True or false: a straight stick is needed for the shadow clock. (a) False (b) True
  37. 37.🔮 Predict: you move a torch closer to your hand. The shadow on the wall gets ___. (a) brighter (b) coloured (c) bigger (d) smaller
  38. 38.🔦 Is a book opaque, translucent or transparent? (a) translucent (b) opaque (c) transparent
  39. 39.🔍 Which is the odd one out? (a) clean water (b) butter paper (c) frosted glass (d) oily paper
  40. 40.🔍 Which is the odd one out? (a) frosted glass (b) your hand (c) a brick (d) a wooden board

Answer key

  1. transparent
  2. we measure it
  3. frosted glass
  4. chalk to mark shadows
  5. True
  6. False
  7. a cap or hat
  8. telling the time
  9. the time of day
  10. clean water
  11. False
  12. a sunny open place
  13. look straight at the Sun
  14. tissue paper
  15. translucent
  16. the stick kept upright
  17. a clock to check
  18. the same spot
  19. not needed
  20. not needed
  21. opaque
  22. needed
  23. opaque
  24. True
  25. an object blocks light
  26. False
  27. True
  28. True
  29. opaque
  30. we keep it the same
  31. we change it
  32. clear plastic film
  33. False
  34. Earth keeps spinning
  35. not needed
  36. True
  37. bigger
  38. opaque
  39. clean water
  40. frosted glass

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