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Shadow and Sundial Experiment Worksheet

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

Answer key

  1. clear glass
  2. look straight at the Sun
  3. needed
  4. a balloon
  5. telling the time
  6. opaque
  7. True
  8. air
  9. west
  10. needed
  11. the same stick
  12. the same spot
  13. False
  14. Earth keeps spinning
  15. oily paper
  16. long
  17. we keep it the same
  18. turmeric powder
  19. a brick
  20. chalk to mark shadows
  21. needed
  22. frosted glass
  23. False
  24. a mirror
  25. False
  26. frosted glass
  27. bigger
  28. translucent
  29. transparent
  30. a mirror
  31. a clock to check
  32. clear glass
  33. we keep it the same
  34. transparent
  35. not needed
  36. True
  37. False
  38. translucent
  39. False
  40. a steel plate

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