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Shadow and Sundial Experiment Worksheet

Science experiments lesson 27: Shadows and a sundial · Set 188 · 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.True or false: chalk to mark shadows is not needed for the shadow clock. (a) True (b) False
  2. 2.⚖️ 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 time of day (c) the same stick
  3. 3.🕰️ What is a sundial used for? (a) telling the time (b) weighing things (c) measuring rain (d) making rainbows
  4. 4.🔍 Which is the odd one out? (a) your hand (b) a book (c) clear glass (d) a steel plate
  5. 5.⚖️ 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
  6. 6.🧺 Which of these is needed for the shadow clock? (a) a magnet (b) turmeric powder (c) chalk to mark shadows (d) a battery cell
  7. 7.🔦 Is frosted glass opaque, translucent or transparent? (a) opaque (b) transparent (c) translucent
  8. 8.📘 Why does a shadow form? (a) light bends round it (b) an object blocks light (c) the object is cold (d) the ground is dark
  9. 9.⚖️ Fair test — how does the shadow of a stick change through the day? Which of these is what we measure? (a) the same stick (b) shadow length (c) the time of day (d) the stick kept upright
  10. 10.True or false: clear plastic film is opaque. (a) False (b) True
  11. 11.🛟 While watching shadows outdoors, what must you never do? (a) sit in the shade (b) look straight at the Sun (c) mark with chalk (d) wear a cap
  12. 12.🔦 Is a wooden board opaque, translucent or transparent? (a) translucent (b) transparent (c) opaque
  13. 13.True or false: a book is transparent. (a) True (b) False
  14. 14.🔦 Is a steel plate opaque, translucent or transparent? (a) opaque (b) translucent (c) transparent
  15. 15.🌍 Why does the stick’s shadow move during the day? (a) Earth keeps spinning (b) the stick grows (c) the stick walks (d) the ground slides
  16. 16.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a clock to check (b) a mirror (c) a sunny open place (d) chalk to mark shadows
  17. 17.🛟 What should you wear for a long time in the hot sun? (a) a raincoat (b) a cap or hat (c) a woollen sweater (d) nothing on your head
  18. 18.🧺 Which of these is not needed for the shadow clock? (a) a sunny open place (b) a straight stick (c) chalk to mark shadows (d) a mirror
  19. 19.⚖️ 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
  20. 20.⚖️ 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 change it (c) we measure it
  21. 21.🔍 Which is the odd one out? (a) clean water (b) clear plastic film (c) frosted glass (d) air
  22. 22.🔮 Predict: the Sun is low in the evening sky. The stick’s shadow is ___. (a) short (b) missing (c) long (d) round
  23. 23.⚖️ 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 change it (c) we measure it
  24. 24.True or false: a sunny open place is needed for the shadow clock. (a) False (b) True
  25. 25.True or false: clean water is transparent. (a) False (b) True
  26. 26.🧺 Which of these is not needed for the shadow clock? (a) a sunny open place (b) a straight stick (c) a clock to check (d) turmeric powder
  27. 27.True or false: your hand is translucent. (a) False (b) True
  28. 28.🔦 Is clear glass opaque, translucent or transparent? (a) translucent (b) transparent (c) opaque
  29. 29.True or false: clear plastic film is transparent. (a) True (b) False
  30. 30.True or false: a battery cell is not needed for the shadow clock. (a) False (b) True
  31. 31.True or false: clear glass is opaque. (a) True (b) False
  32. 32.⚖️ 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 keep it the same (c) we change it
  33. 33.🧺 Do we need a balloon for the shadow clock? (a) not needed (b) needed
  34. 34.⚖️ 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) False (b) True
  35. 35.🧺 Which of these is needed for the shadow clock? (a) a balloon (b) a magnet (c) a mirror (d) a straight stick
  36. 36.🌅 In the morning the Sun is in the east. Which way does a shadow point? (a) up (b) north (c) west (d) east
  37. 37.🔦 Which of these is transparent? (a) a wooden board (b) a brick (c) clean water (d) frosted glass
  38. 38.🔮 Predict: you move a torch closer to your hand. The shadow on the wall gets ___. (a) bigger (b) coloured (c) smaller (d) brighter
  39. 39.True or false: turmeric powder is needed for the shadow clock. (a) True (b) False
  40. 40.True or false: a sunny open place is not needed for the shadow clock. (a) True (b) False

Answer key

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

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