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Shadow and Sundial Experiment Worksheet

Science experiments lesson 27: Shadows and a sundial · Set 476 · 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? Which of these is the one thing we change? (a) shadow length (b) the same stick (c) the time of day (d) the stick kept upright
  2. 2.🧺 Which of these is not needed for the shadow clock? (a) chalk to mark shadows (b) a sunny open place (c) a straight stick (d) a balloon
  3. 3.🧺 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 battery cell (d) a clock to check
  4. 4.True or false: a book is opaque. (a) True (b) False
  5. 5.🛟 While watching shadows outdoors, what must you never do? (a) sit in the shade (b) mark with chalk (c) wear a cap (d) look straight at the Sun
  6. 6.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a straight stick (b) chalk to mark shadows (c) a sunny open place (d) a balloon
  7. 7.⚖️ Fair test — how does the shadow of a stick change through the day? Which of these is what we measure? (a) the same stick (b) the time of day (c) shadow length (d) the stick kept upright
  8. 8.🌞 When is a stick’s shadow the shortest? (a) at night (b) around noon (c) late evening (d) early morning
  9. 9.🔦 Is clean water opaque, translucent or transparent? (a) opaque (b) transparent (c) translucent
  10. 10.🧺 Do we need a sunny open place for the shadow clock? (a) not needed (b) needed
  11. 11.🌅 In the morning the Sun is in the east. Which way does a shadow point? (a) up (b) east (c) west (d) north
  12. 12.🔍 Which is the odd one out? (a) a book (b) a brick (c) your hand (d) clear plastic film
  13. 13.🔦 Which of these is transparent? (a) a book (b) a steel plate (c) tissue paper (d) air
  14. 14.⚖️ 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
  15. 15.🔮 Predict: on a fully cloudy day, the sundial ___. (a) runs faster (b) works better (c) shows two times (d) does not work well
  16. 16.🔦 Is a steel plate opaque, translucent or transparent? (a) opaque (b) transparent (c) translucent
  17. 17.🌍 Why does the stick’s shadow move during the day? (a) the stick walks (b) the stick grows (c) Earth keeps spinning (d) the ground slides
  18. 18.True or false: a steel plate is translucent. (a) True (b) False
  19. 19.🧺 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
  20. 20.🔦 Is clear glass opaque, translucent or transparent? (a) opaque (b) translucent (c) transparent
  21. 21.🔍 Which is the odd one out? (a) a brick (b) butter paper (c) frosted glass (d) tissue paper
  22. 22.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the same stick is kept the same. (a) True (b) False
  23. 23.True or false: a steel plate is transparent. (a) False (b) True
  24. 24.🔦 Which of these is translucent? (a) a wooden board (b) oily paper (c) a brick (d) clear glass
  25. 25.True or false: a straight stick is needed for the shadow clock. (a) True (b) False
  26. 26.🔍 Which is the odd one out? (a) clean water (b) clear glass (c) tissue paper (d) air
  27. 27.🛟 What should you wear for a long time in the hot sun? (a) a woollen sweater (b) a raincoat (c) a cap or hat (d) nothing on your head
  28. 28.True or false: clear glass is opaque. (a) True (b) False
  29. 29.⚖️ Fair test — how does the shadow of a stick change through the day? What do we do with “the same spot”? (a) we change it (b) we keep it the same (c) we measure it
  30. 30.⚖️ 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 keep it the same (c) we measure it
  31. 31.🧺 Do we need a battery cell for the shadow clock? (a) not needed (b) needed
  32. 32.🕰️ What is a sundial used for? (a) measuring rain (b) weighing things (c) making rainbows (d) telling the time
  33. 33.🧺 Which of these is not needed for the shadow clock? (a) chalk to mark shadows (b) a sunny open place (c) yeast (d) a clock to check
  34. 34.True or false: chalk to mark shadows is not needed for the shadow clock. (a) False (b) True
  35. 35.🧺 Do we need a magnet for the shadow clock? (a) not needed (b) needed
  36. 36.True or false: your hand is opaque. (a) True (b) False
  37. 37.🔦 Is a book opaque, translucent or transparent? (a) opaque (b) translucent (c) transparent
  38. 38.📘 Why does a shadow form? (a) the ground is dark (b) the object is cold (c) light bends round it (d) an object blocks light
  39. 39.🔮 Predict: you move a torch closer to your hand. The shadow on the wall gets ___. (a) brighter (b) coloured (c) smaller (d) bigger
  40. 40.True or false: a clock to check is needed for the shadow clock. (a) False (b) True

Answer key

  1. the time of day
  2. a balloon
  3. a battery cell
  4. True
  5. look straight at the Sun
  6. a balloon
  7. shadow length
  8. around noon
  9. transparent
  10. needed
  11. west
  12. clear plastic film
  13. air
  14. we measure it
  15. does not work well
  16. opaque
  17. Earth keeps spinning
  18. False
  19. yeast
  20. transparent
  21. a brick
  22. True
  23. False
  24. oily paper
  25. True
  26. tissue paper
  27. a cap or hat
  28. False
  29. we keep it the same
  30. we keep it the same
  31. not needed
  32. telling the time
  33. yeast
  34. False
  35. not needed
  36. True
  37. opaque
  38. an object blocks light
  39. bigger
  40. True

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