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Shadow and Sundial Experiment Worksheet

Science experiments lesson 27: Shadows and a sundial · Set 409 · 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.🔍 Which is the odd one out? (a) clear plastic film (b) tissue paper (c) butter paper (d) frosted glass
  2. 2.🧺 Do we need a clock to check for the shadow clock? (a) not needed (b) needed
  3. 3.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a sunny open place (b) turmeric powder (c) a straight stick (d) chalk to mark shadows
  4. 4.🧺 Do we need turmeric powder for the shadow clock? (a) not needed (b) needed
  5. 5.🔦 Which of these is opaque? (a) clear plastic film (b) a book (c) oily paper (d) butter paper
  6. 6.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the same stick is kept the same. (a) False (b) True
  7. 7.🧺 Which of these is needed for the shadow clock? (a) turmeric powder (b) a sunny open place (c) a magnet (d) yeast
  8. 8.🧺 Do we need a balloon for the shadow clock? (a) needed (b) not needed
  9. 9.⚖️ 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
  10. 10.⚖️ Fair test — how does the shadow of a stick change through the day? What do we do with “shadow length”? (a) we measure it (b) we change it (c) we keep it the same
  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 stick (b) the stick kept upright (c) shadow length (d) the time of day
  12. 12.🛟 While watching shadows outdoors, what must you never do? (a) wear a cap (b) mark with chalk (c) look straight at the Sun (d) sit in the shade
  13. 13.⚖️ 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 measure it (c) we change it
  14. 14.🧺 Do we need a sunny open place for the shadow clock? (a) not needed (b) needed
  15. 15.🔮 Predict: the Sun is low in the evening sky. The stick’s shadow is ___. (a) short (b) round (c) long (d) missing
  16. 16.True or false: a magnet is not needed for the shadow clock. (a) False (b) True
  17. 17.True or false: a straight stick is not needed for the shadow clock. (a) True (b) False
  18. 18.⚖️ Fair test — how does the shadow of a stick change through the day? Which of these is kept the same? (a) the same spot (b) the time of day (c) shadow length
  19. 19.True or false: yeast is not needed for the shadow clock. (a) False (b) True
  20. 20.True or false: a clock to check is needed for the shadow clock. (a) True (b) False
  21. 21.⚖️ 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
  22. 22.🔦 Is a wooden board opaque, translucent or transparent? (a) translucent (b) opaque (c) transparent
  23. 23.🕰️ What is a sundial used for? (a) making rainbows (b) weighing things (c) telling the time (d) measuring rain
  24. 24.🧺 Do we need yeast for the shadow clock? (a) needed (b) not needed
  25. 25.🛟 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
  26. 26.🧺 Which of these is not needed for the shadow clock? (a) chalk to mark shadows (b) a straight stick (c) a sunny open place (d) turmeric powder
  27. 27.True or false: a battery cell is needed for the shadow clock. (a) True (b) False
  28. 28.True or false: a balloon is needed for the shadow clock. (a) True (b) False
  29. 29.🔦 Is your hand opaque, translucent or transparent? (a) transparent (b) translucent (c) opaque
  30. 30.🧺 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 balloon (d) a sunny open place
  31. 31.🧺 Which of these is needed for the shadow clock? (a) a battery cell (b) a balloon (c) turmeric powder (d) chalk to mark shadows
  32. 32.🔮 Predict: you move a torch closer to your hand. The shadow on the wall gets ___. (a) coloured (b) brighter (c) bigger (d) smaller
  33. 33.🔦 Which of these is transparent? (a) a brick (b) a book (c) clean water (d) frosted glass
  34. 34.🔦 Is clear plastic film opaque, translucent or transparent? (a) transparent (b) opaque (c) translucent
  35. 35.🧺 Do we need chalk to mark shadows for the shadow clock? (a) needed (b) not needed
  36. 36.🧺 Do we need a mirror for the shadow clock? (a) not needed (b) needed
  37. 37.🧺 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) a straight stick (d) a mirror
  38. 38.🔦 Which of these is transparent? (a) frosted glass (b) a book (c) your hand (d) clear plastic film
  39. 39.📘 Why does a shadow form? (a) the object is cold (b) the ground is dark (c) light bends round it (d) an object blocks light
  40. 40.🔦 Which of these is transparent? (a) a book (b) your hand (c) air (d) a wooden board

Answer key

  1. clear plastic film
  2. needed
  3. turmeric powder
  4. not needed
  5. a book
  6. True
  7. a sunny open place
  8. not needed
  9. True
  10. we measure it
  11. the time of day
  12. look straight at the Sun
  13. we keep it the same
  14. needed
  15. long
  16. True
  17. False
  18. the same spot
  19. True
  20. True
  21. False
  22. opaque
  23. telling the time
  24. not needed
  25. a cap or hat
  26. turmeric powder
  27. False
  28. False
  29. opaque
  30. a balloon
  31. chalk to mark shadows
  32. bigger
  33. clean water
  34. transparent
  35. needed
  36. not needed
  37. a mirror
  38. clear plastic film
  39. an object blocks light
  40. air

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