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Shadow and Sundial Experiment Worksheet

Science experiments lesson 27: Shadows and a sundial · Set 389 · 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 what we measure? (a) the stick kept upright (b) the same spot (c) the same stick (d) shadow length
  2. 2.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the same stick is what we measure. (a) True (b) False
  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 keep it the same (b) we change it (c) we measure it
  4. 4.🧺 Do we need chalk to mark shadows for the shadow clock? (a) not needed (b) needed
  5. 5.🧺 Which of these is not needed for the shadow clock? (a) chalk to mark shadows (b) a sunny open place (c) a magnet (d) a straight stick
  6. 6.⚖️ 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
  7. 7.🔍 Which is the odd one out? (a) clear glass (b) air (c) your hand (d) clean water
  8. 8.⚖️ 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
  9. 9.🧺 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) a magnet (d) a sunny open place
  10. 10.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a sunny open place (b) a balloon (c) a clock to check (d) a straight stick
  11. 11.⚖️ 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 same stick (c) shadow length (d) the time of day
  12. 12.🧺 Do we need a clock to check for the shadow clock? (a) not needed (b) needed
  13. 13.🔮 Predict: the Sun is low in the evening sky. The stick’s shadow is ___. (a) missing (b) long (c) short (d) round
  14. 14.🛟 While watching shadows outdoors, what must you never do? (a) look straight at the Sun (b) wear a cap (c) mark with chalk (d) sit in the shade
  15. 15.True or false: clean water is opaque. (a) False (b) True
  16. 16.🔦 Which of these is transparent? (a) frosted glass (b) a book (c) air (d) a wooden board
  17. 17.🔦 Which of these is opaque? (a) butter paper (b) air (c) your hand (d) clear plastic film
  18. 18.🧺 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) turmeric powder (d) a straight stick
  19. 19.🔍 Which is the odd one out? (a) butter paper (b) a steel plate (c) a book (d) a brick
  20. 20.🔍 Which is the odd one out? (a) a steel plate (b) a wooden board (c) your hand (d) air
  21. 21.🧺 Do we need a battery cell for the shadow clock? (a) not needed (b) needed
  22. 22.🧺 Do we need a straight stick for the shadow clock? (a) needed (b) not needed
  23. 23.🌞 When is a stick’s shadow the shortest? (a) early morning (b) at night (c) late evening (d) around noon
  24. 24.🧺 Do we need a sunny open place for the shadow clock? (a) not needed (b) needed
  25. 25.🔦 Is a brick opaque, translucent or transparent? (a) transparent (b) opaque (c) translucent
  26. 26.True or false: a wooden board is opaque. (a) True (b) False
  27. 27.⚖️ 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) False (b) True
  28. 28.🛟 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
  29. 29.True or false: turmeric powder is needed for the shadow clock. (a) True (b) False
  30. 30.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: shadow length is what we measure. (a) True (b) False
  31. 31.🧺 Which of these is needed for the shadow clock? (a) a straight stick (b) a battery cell (c) a balloon (d) yeast
  32. 32.🔦 Is a wooden board opaque, translucent or transparent? (a) translucent (b) transparent (c) opaque
  33. 33.🧺 Which of these is not needed for the shadow clock? (a) a clock to check (b) a sunny open place (c) yeast (d) chalk to mark shadows
  34. 34.🧺 Do we need yeast for the shadow clock? (a) needed (b) not needed
  35. 35.📘 Why does a shadow form? (a) an object blocks light (b) the object is cold (c) the ground is dark (d) light bends round it
  36. 36.True or false: clear glass is translucent. (a) True (b) False
  37. 37.True or false: a battery cell is not needed for the shadow clock. (a) True (b) False
  38. 38.True or false: a straight stick is not needed for the shadow clock. (a) True (b) False
  39. 39.🧺 Which of these is needed for the shadow clock? (a) turmeric powder (b) a clock to check (c) a magnet (d) yeast
  40. 40.True or false: your hand is translucent. (a) True (b) False

Answer key

  1. shadow length
  2. False
  3. we change it
  4. needed
  5. a magnet
  6. True
  7. your hand
  8. we keep it the same
  9. a magnet
  10. a balloon
  11. the time of day
  12. needed
  13. long
  14. look straight at the Sun
  15. False
  16. air
  17. your hand
  18. turmeric powder
  19. butter paper
  20. air
  21. not needed
  22. needed
  23. around noon
  24. needed
  25. opaque
  26. True
  27. False
  28. a cap or hat
  29. False
  30. True
  31. a straight stick
  32. opaque
  33. yeast
  34. not needed
  35. an object blocks light
  36. False
  37. True
  38. False
  39. a clock to check
  40. False

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