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Shadow and Sundial Experiment Worksheet

Science experiments lesson 27: Shadows and a sundial · Set 364 · 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) mark with chalk (b) wear a cap (c) look straight at the Sun (d) sit in the shade
  2. 2.🧺 Which of these is needed for the shadow clock? (a) a balloon (b) a mirror (c) a clock to check (d) yeast
  3. 3.🔍 Which is the odd one out? (a) oily paper (b) air (c) frosted glass (d) butter paper
  4. 4.🔦 Which of these is transparent? (a) a wooden board (b) butter paper (c) clear glass (d) a steel plate
  5. 5.🧺 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 balloon (d) a sunny open place
  6. 6.🔦 Which of these is opaque? (a) butter paper (b) clear plastic film (c) a brick (d) air
  7. 7.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a sunny open place (b) a straight stick (c) chalk to mark shadows (d) a mirror
  8. 8.🧺 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 magnet (d) a clock to check
  9. 9.🔦 Which of these is translucent? (a) clean water (b) a book (c) butter paper (d) a steel plate
  10. 10.⚖️ 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
  11. 11.🔦 Is a brick opaque, translucent or transparent? (a) translucent (b) opaque (c) transparent
  12. 12.📘 Why does a shadow form? (a) light bends round it (b) an object blocks light (c) the ground is dark (d) the object is cold
  13. 13.🌞 When is a stick’s shadow the shortest? (a) at night (b) late evening (c) early morning (d) around noon
  14. 14.🌍 Why does the stick’s shadow move during the day? (a) the stick walks (b) the ground slides (c) the stick grows (d) Earth keeps spinning
  15. 15.🔦 Which of these is translucent? (a) clear glass (b) frosted glass (c) clear plastic film (d) clean water
  16. 16.🧺 Which of these is needed for the shadow clock? (a) chalk to mark shadows (b) a mirror (c) turmeric powder (d) a magnet
  17. 17.True or false: clear plastic film is translucent. (a) True (b) False
  18. 18.🔦 Is clear plastic film opaque, translucent or transparent? (a) opaque (b) translucent (c) transparent
  19. 19.True or false: a balloon is not needed for the shadow clock. (a) False (b) True
  20. 20.🧺 Do we need a mirror for the shadow clock? (a) not needed (b) needed
  21. 21.🧺 Do we need a battery cell for the shadow clock? (a) not needed (b) needed
  22. 22.True or false: a sunny open place is not needed for the shadow clock. (a) False (b) True
  23. 23.🔍 Which is the odd one out? (a) a steel plate (b) butter paper (c) a brick (d) a wooden board
  24. 24.🧺 Which of these is not needed for the shadow clock? (a) a straight stick (b) a clock to check (c) a sunny open place (d) yeast
  25. 25.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: shadow length is what we measure. (a) False (b) True
  26. 26.🧺 Which of these is not needed for the shadow clock? (a) chalk to mark shadows (b) a straight stick (c) turmeric powder (d) a clock to check
  27. 27.🔦 Which of these is translucent? (a) a steel plate (b) tissue paper (c) air (d) a book
  28. 28.🧺 Do we need turmeric powder for the shadow clock? (a) needed (b) not needed
  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 measure it (b) we keep it the same (c) we change it
  30. 30.🔦 Is oily paper opaque, translucent or transparent? (a) translucent (b) opaque (c) transparent
  31. 31.⚖️ 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
  32. 32.🔦 Is your hand opaque, translucent or transparent? (a) translucent (b) transparent (c) opaque
  33. 33.🧺 Do we need chalk to mark shadows for the shadow clock? (a) needed (b) not needed
  34. 34.🔦 Which of these is transparent? (a) butter paper (b) a book (c) clear plastic film (d) tissue paper
  35. 35.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a clock to check (b) turmeric powder (c) a sunny open place (d) a straight stick
  36. 36.⚖️ 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 stick (b) the same spot (c) the time of day (d) shadow length
  37. 37.True or false: a magnet is needed for the shadow clock. (a) True (b) False
  38. 38.🔍 Which is the odd one out? (a) clean water (b) a wooden board (c) air (d) clear glass
  39. 39.🧺 Do we need a balloon for the shadow clock? (a) needed (b) not needed
  40. 40.🔍 Which is the odd one out? (a) a wooden board (b) clean water (c) a book (d) a brick

Answer key

  1. look straight at the Sun
  2. a clock to check
  3. air
  4. clear glass
  5. a balloon
  6. a brick
  7. a mirror
  8. a magnet
  9. butter paper
  10. True
  11. opaque
  12. an object blocks light
  13. around noon
  14. Earth keeps spinning
  15. frosted glass
  16. chalk to mark shadows
  17. False
  18. transparent
  19. True
  20. not needed
  21. not needed
  22. False
  23. butter paper
  24. yeast
  25. True
  26. turmeric powder
  27. tissue paper
  28. not needed
  29. we keep it the same
  30. translucent
  31. True
  32. opaque
  33. needed
  34. clear plastic film
  35. turmeric powder
  36. the time of day
  37. False
  38. a wooden board
  39. not needed
  40. clean water

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