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Shadow and Sundial Experiment Worksheet

Science experiments lesson 27: Shadows and a sundial · Set 454 · 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.🔦 Is clean water opaque, translucent or transparent? (a) translucent (b) opaque (c) transparent
  2. 2.🔮 Predict: the Sun is low in the evening sky. The stick’s shadow is ___. (a) short (b) missing (c) round (d) long
  3. 3.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a straight stick (b) a mirror (c) a clock to check (d) chalk to mark shadows
  4. 4.🔦 Is a brick opaque, translucent or transparent? (a) transparent (b) translucent (c) opaque
  5. 5.🧺 Do we need yeast for the shadow clock? (a) not needed (b) needed
  6. 6.⚖️ Fair test — how does the shadow of a stick change through the day? Which of these is the one thing we change? (a) the stick kept upright (b) the same spot (c) shadow length (d) the time of day
  7. 7.True or false: oily paper is transparent. (a) True (b) False
  8. 8.🔮 Predict: you move a torch closer to your hand. The shadow on the wall gets ___. (a) coloured (b) brighter (c) smaller (d) bigger
  9. 9.True or false: chalk to mark shadows is not needed for the shadow clock. (a) False (b) True
  10. 10.🛟 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
  11. 11.🔍 Which is the odd one out? (a) a steel plate (b) butter paper (c) frosted glass (d) tissue paper
  12. 12.🔍 Which is the odd one out? (a) your hand (b) clear glass (c) clean water (d) clear plastic film
  13. 13.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a magnet (b) a straight stick (c) a sunny open place (d) a clock to check
  14. 14.🔍 Which is the odd one out? (a) air (b) frosted glass (c) butter paper (d) tissue paper
  15. 15.🛟 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
  16. 16.📘 Why does a shadow form? (a) the object is cold (b) light bends round it (c) the ground is dark (d) an object blocks light
  17. 17.🌅 In the morning the Sun is in the east. Which way does a shadow point? (a) east (b) north (c) up (d) west
  18. 18.🧺 Do we need a magnet for the shadow clock? (a) needed (b) not needed
  19. 19.🔦 Is your hand opaque, translucent or transparent? (a) translucent (b) transparent (c) opaque
  20. 20.🧺 Which of these is needed for the shadow clock? (a) a sunny open place (b) yeast (c) a mirror (d) a balloon
  21. 21.True or false: a straight stick is not needed for the shadow clock. (a) True (b) False
  22. 22.🕰️ What is a sundial used for? (a) measuring rain (b) weighing things (c) making rainbows (d) telling the time
  23. 23.⚖️ Fair test — how does the shadow of a stick change through the day? What do we do with “the stick kept upright”? (a) we measure it (b) we change it (c) we keep it the same
  24. 24.⚖️ 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
  25. 25.🔦 Which of these is translucent? (a) a brick (b) butter paper (c) your hand (d) a book
  26. 26.True or false: your hand is opaque. (a) False (b) True
  27. 27.🔦 Is butter paper opaque, translucent or transparent? (a) transparent (b) translucent (c) opaque
  28. 28.⚖️ 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 stick kept upright (c) the time of day
  29. 29.⚖️ 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 measure it (c) we change it
  30. 30.🔍 Which is the odd one out? (a) oily paper (b) tissue paper (c) clear plastic film (d) butter paper
  31. 31.True or false: a clock to check is needed for the shadow clock. (a) True (b) False
  32. 32.True or false: a balloon is not needed for the shadow clock. (a) False (b) True
  33. 33.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the same stick is the one thing we change. (a) False (b) True
  34. 34.🔦 Which of these is opaque? (a) clean water (b) butter paper (c) clear glass (d) a wooden board
  35. 35.🔍 Which is the odd one out? (a) a wooden board (b) frosted glass (c) a book (d) a brick
  36. 36.⚖️ 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
  37. 37.🧺 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 sunny open place (d) turmeric powder
  38. 38.🔦 Is frosted glass opaque, translucent or transparent? (a) transparent (b) translucent (c) opaque
  39. 39.True or false: a mirror is not needed for the shadow clock. (a) True (b) False
  40. 40.🔦 Which of these is transparent? (a) clean water (b) butter paper (c) a wooden board (d) a book

Answer key

  1. transparent
  2. long
  3. a mirror
  4. opaque
  5. not needed
  6. the time of day
  7. False
  8. bigger
  9. False
  10. look straight at the Sun
  11. a steel plate
  12. your hand
  13. a magnet
  14. air
  15. a cap or hat
  16. an object blocks light
  17. west
  18. not needed
  19. opaque
  20. a sunny open place
  21. False
  22. telling the time
  23. we keep it the same
  24. True
  25. butter paper
  26. True
  27. translucent
  28. the stick kept upright
  29. we change it
  30. clear plastic film
  31. True
  32. True
  33. False
  34. a wooden board
  35. frosted glass
  36. False
  37. turmeric powder
  38. translucent
  39. True
  40. clean water

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