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Shadow and Sundial Experiment Worksheet

Science experiments lesson 27: Shadows and a sundial · Set 347 · 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: air is transparent. (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.🧺 Which of these is not needed for the shadow clock? (a) a clock to check (b) chalk to mark shadows (c) a straight stick (d) a mirror
  4. 4.True or false: turmeric powder is not needed for the shadow clock. (a) False (b) True
  5. 5.🔦 Which of these is translucent? (a) oily paper (b) a brick (c) a wooden board (d) a book
  6. 6.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a clock to check (b) a sunny open place (c) a straight stick (d) a magnet
  7. 7.⚖️ 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) False (b) True
  8. 8.True or false: yeast is needed for the shadow clock. (a) True (b) False
  9. 9.⚖️ 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 same spot (c) the time of day (d) shadow length
  10. 10.True or false: a book is opaque. (a) False (b) True
  11. 11.🌍 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
  12. 12.True or false: a magnet is not needed for the shadow clock. (a) True (b) False
  13. 13.⚖️ 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 spot
  14. 14.True or false: frosted glass is opaque. (a) False (b) True
  15. 15.🧺 Do we need a magnet for the shadow clock? (a) needed (b) not needed
  16. 16.🧺 Do we need chalk to mark shadows for the shadow clock? (a) needed (b) not needed
  17. 17.🛟 While watching shadows outdoors, what must you never do? (a) look straight at the Sun (b) sit in the shade (c) mark with chalk (d) wear a cap
  18. 18.🔦 Which of these is translucent? (a) clear glass (b) butter paper (c) a wooden board (d) your hand
  19. 19.🛟 What should you wear for a long time in the hot sun? (a) a woollen sweater (b) nothing on your head (c) a raincoat (d) a cap or hat
  20. 20.🔍 Which is the odd one out? (a) air (b) a brick (c) clear glass (d) clear plastic film
  21. 21.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a sunny open place (b) a battery cell (c) a straight stick (d) a clock to check
  22. 22.🔦 Is a steel plate opaque, translucent or transparent? (a) opaque (b) translucent (c) transparent
  23. 23.🔮 Predict: the Sun is low in the evening sky. The stick’s shadow is ___. (a) missing (b) round (c) long (d) short
  24. 24.🔦 Is clear glass opaque, translucent or transparent? (a) transparent (b) opaque (c) translucent
  25. 25.True or false: a mirror is not needed for the shadow clock. (a) False (b) True
  26. 26.⚖️ Fair test — how does the shadow of a stick change through the day? What do we do with “the time of day”? (a) we change it (b) we measure it (c) we keep it the same
  27. 27.🔦 Is clear plastic film opaque, translucent or transparent? (a) transparent (b) opaque (c) translucent
  28. 28.🔦 Which of these is transparent? (a) frosted glass (b) clear glass (c) a brick (d) tissue paper
  29. 29.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: shadow length is the one thing we change. (a) True (b) False
  30. 30.True or false: chalk to mark shadows is not needed for the shadow clock. (a) True (b) False
  31. 31.🔦 Is tissue paper opaque, translucent or transparent? (a) transparent (b) opaque (c) translucent
  32. 32.🧺 Which of these is needed for the shadow clock? (a) a clock to check (b) a battery cell (c) a balloon (d) turmeric powder
  33. 33.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a sunny open place (b) chalk to mark shadows (c) a straight stick (d) a mirror
  34. 34.🕰️ What is a sundial used for? (a) telling the time (b) making rainbows (c) weighing things (d) measuring rain
  35. 35.🧺 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 clock to check (d) a balloon
  36. 36.True or false: a mirror is needed for the shadow clock. (a) True (b) False
  37. 37.🧺 Which of these is needed for the shadow clock? (a) turmeric powder (b) yeast (c) a sunny open place (d) a balloon
  38. 38.True or false: your hand is opaque. (a) True (b) False
  39. 39.🧺 Which of these is not needed for the shadow clock? (a) a sunny open place (b) a clock to check (c) a magnet (d) a straight stick
  40. 40.🧺 Which of these is not needed for the shadow clock? (a) yeast (b) a clock to check (c) a straight stick (d) chalk to mark shadows

Answer key

  1. True
  2. the same stick
  3. a mirror
  4. True
  5. oily paper
  6. a magnet
  7. True
  8. False
  9. the time of day
  10. True
  11. Earth keeps spinning
  12. True
  13. the same spot
  14. False
  15. not needed
  16. needed
  17. look straight at the Sun
  18. butter paper
  19. a cap or hat
  20. a brick
  21. a battery cell
  22. opaque
  23. long
  24. transparent
  25. True
  26. we change it
  27. transparent
  28. clear glass
  29. False
  30. False
  31. translucent
  32. a clock to check
  33. a mirror
  34. telling the time
  35. a balloon
  36. False
  37. a sunny open place
  38. True
  39. a magnet
  40. yeast

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