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Shadow and Sundial Experiment Worksheet

Science experiments lesson 27: Shadows and a sundial · Set 696 · 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.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a clock to check (b) a sunny open place (c) turmeric powder (d) chalk to mark shadows
  3. 3.True or false: a clock to check is needed for the shadow clock. (a) False (b) True
  4. 4.🔦 Is a wooden board opaque, translucent or transparent? (a) transparent (b) opaque (c) translucent
  5. 5.True or false: a magnet is needed for the shadow clock. (a) False (b) True
  6. 6.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) yeast (b) chalk to mark shadows (c) a clock to check (d) a sunny open place
  7. 7.🛟 What should you wear for a long time in the hot sun? (a) a raincoat (b) a woollen sweater (c) nothing on your head (d) a cap or hat
  8. 8.🧺 Do we need a magnet for the shadow clock? (a) not needed (b) needed
  9. 9.⚖️ 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 change it (c) we keep it the same
  10. 10.🔦 Is clear plastic film opaque, translucent or transparent? (a) transparent (b) translucent (c) opaque
  11. 11.True or false: chalk to mark shadows is not needed for the shadow clock. (a) True (b) False
  12. 12.🔍 Which is the odd one out? (a) tissue paper (b) frosted glass (c) air (d) oily paper
  13. 13.🧺 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
  14. 14.🧺 Which of these is not needed for the shadow clock? (a) a clock to check (b) a magnet (c) a straight stick (d) chalk to mark shadows
  15. 15.⚖️ Fair test — how does the shadow of a stick change through the day? What do we do with “the time of day”? (a) we change it (b) we keep it the same (c) we measure it
  16. 16.True or false: a steel plate is translucent. (a) False (b) True
  17. 17.🔍 Which is the odd one out? (a) a wooden board (b) a book (c) butter paper (d) your hand
  18. 18.🔍 Which is the odd one out? (a) oily paper (b) butter paper (c) frosted glass (d) a wooden board
  19. 19.⚖️ 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
  20. 20.True or false: clear glass is transparent. (a) False (b) True
  21. 21.🧺 Which of these is not needed for the shadow clock? (a) yeast (b) a straight stick (c) chalk to mark shadows (d) a clock to check
  22. 22.⚖️ 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) False (b) True
  23. 23.⚖️ 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 time of day (c) the same spot (d) the stick kept upright
  24. 24.True or false: air is transparent. (a) False (b) True
  25. 25.⚖️ 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) shadow length (d) the same stick
  26. 26.🔍 Which is the odd one out? (a) a steel plate (b) clear glass (c) clean water (d) air
  27. 27.🧺 Which of these is needed for the shadow clock? (a) yeast (b) a magnet (c) a balloon (d) a clock to check
  28. 28.📘 Why does a shadow form? (a) the object is cold (b) an object blocks light (c) the ground is dark (d) light bends round it
  29. 29.🔦 Which of these is transparent? (a) butter paper (b) air (c) a steel plate (d) a book
  30. 30.True or false: a wooden board is transparent. (a) True (b) False
  31. 31.🔦 Is clear glass opaque, translucent or transparent? (a) transparent (b) translucent (c) opaque
  32. 32.🧺 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) a magnet
  33. 33.🧺 Do we need a mirror for the shadow clock? (a) not needed (b) needed
  34. 34.🔦 Which of these is opaque? (a) air (b) a wooden board (c) clear glass (d) butter paper
  35. 35.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the same spot is what we measure. (a) False (b) True
  36. 36.True or false: a magnet is not needed for the shadow clock. (a) True (b) False
  37. 37.⚖️ 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 spot (c) the time of day
  38. 38.🔦 Is oily paper opaque, translucent or transparent? (a) transparent (b) opaque (c) translucent
  39. 39.True or false: yeast is needed for the shadow clock. (a) True (b) False
  40. 40.🧺 Do we need yeast for the shadow clock? (a) not needed (b) needed

Answer key

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

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