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Shadow and Sundial Experiment Worksheet

Science experiments lesson 27: Shadows and a sundial · Set 789 · 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.🔍 Which is the odd one out? (a) air (b) clear plastic film (c) clean water (d) a wooden board
  2. 2.🔦 Is a book opaque, translucent or transparent? (a) transparent (b) opaque (c) translucent
  3. 3.🛟 While watching shadows outdoors, what must you never do? (a) sit in the shade (b) mark with chalk (c) look straight at the Sun (d) wear a cap
  4. 4.🔦 Which of these is translucent? (a) oily paper (b) a book (c) a wooden board (d) clear glass
  5. 5.True or false: a battery cell is needed for the shadow clock. (a) False (b) True
  6. 6.🔦 Is tissue paper opaque, translucent or transparent? (a) translucent (b) opaque (c) transparent
  7. 7.True or false: your hand is translucent. (a) True (b) False
  8. 8.🧺 Do we need turmeric powder for the shadow clock? (a) not needed (b) needed
  9. 9.🛟 What should you wear for a long time in the hot sun? (a) nothing on your head (b) a raincoat (c) a cap or hat (d) a woollen sweater
  10. 10.True or false: chalk to mark shadows is not needed for the shadow clock. (a) False (b) True
  11. 11.True or false: a mirror is not needed for the shadow clock. (a) False (b) True
  12. 12.⚖️ 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 stick kept upright (d) the same spot
  13. 13.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a straight stick (b) a sunny open place (c) a balloon (d) chalk to mark shadows
  14. 14.🧺 Do we need a straight stick for the shadow clock? (a) needed (b) not needed
  15. 15.🔦 Is oily paper opaque, translucent or transparent? (a) opaque (b) transparent (c) translucent
  16. 16.⚖️ 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
  17. 17.True or false: a straight stick is needed for the shadow clock. (a) True (b) False
  18. 18.True or false: butter paper is transparent. (a) True (b) False
  19. 19.True or false: turmeric powder is not needed for the shadow clock. (a) False (b) True
  20. 20.🌅 In the morning the Sun is in the east. Which way does a shadow point? (a) west (b) north (c) east (d) up
  21. 21.🧺 Do we need a clock to check for the shadow clock? (a) not needed (b) needed
  22. 22.🧺 Which of these is not needed for the shadow clock? (a) turmeric powder (b) a straight stick (c) a sunny open place (d) a clock to check
  23. 23.🔦 Is your hand opaque, translucent or transparent? (a) translucent (b) opaque (c) transparent
  24. 24.🧺 Which of these is needed for the shadow clock? (a) yeast (b) a balloon (c) chalk to mark shadows (d) turmeric powder
  25. 25.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) chalk to mark shadows (b) a clock to check (c) a magnet (d) a sunny open place
  26. 26.⚖️ 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 stick kept upright (c) the same stick (d) the time of day
  27. 27.⚖️ 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 measure it (c) we keep it the same
  28. 28.True or false: a clock to check is needed for the shadow clock. (a) True (b) False
  29. 29.📘 Why does a shadow form? (a) light bends round it (b) the object is cold (c) an object blocks light (d) the ground is dark
  30. 30.🕰️ What is a sundial used for? (a) weighing things (b) measuring rain (c) making rainbows (d) telling the time
  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 change it (c) we keep it the same
  32. 32.🧺 Do we need yeast for the shadow clock? (a) needed (b) not needed
  33. 33.🧺 Which of these is not needed for the shadow clock? (a) a balloon (b) a clock to check (c) a sunny open place (d) a straight stick
  34. 34.🌍 Why does the stick’s shadow move during the day? (a) the ground slides (b) the stick walks (c) the stick grows (d) Earth keeps spinning
  35. 35.🧺 Do we need a magnet for the shadow clock? (a) not needed (b) needed
  36. 36.🔍 Which is the odd one out? (a) a brick (b) air (c) your hand (d) a book
  37. 37.🔍 Which is the odd one out? (a) clear plastic film (b) clear glass (c) clean water (d) frosted glass
  38. 38.🧺 Do we need chalk to mark shadows for the shadow clock? (a) not needed (b) needed
  39. 39.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the same spot is kept the same. (a) False (b) True
  40. 40.🧺 Do we need a mirror for the shadow clock? (a) needed (b) not needed

Answer key

  1. a wooden board
  2. opaque
  3. look straight at the Sun
  4. oily paper
  5. False
  6. translucent
  7. False
  8. not needed
  9. a cap or hat
  10. False
  11. True
  12. shadow length
  13. a balloon
  14. needed
  15. translucent
  16. True
  17. True
  18. False
  19. True
  20. west
  21. needed
  22. turmeric powder
  23. opaque
  24. chalk to mark shadows
  25. a magnet
  26. the time of day
  27. we keep it the same
  28. True
  29. an object blocks light
  30. telling the time
  31. we change it
  32. not needed
  33. a balloon
  34. Earth keeps spinning
  35. not needed
  36. air
  37. frosted glass
  38. needed
  39. True
  40. not needed

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