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Shadow and Sundial Experiment Worksheet

Science experiments lesson 27: Shadows and a sundial · Set 65 · 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.🔮 Predict: the Sun is low in the evening sky. The stick’s shadow is ___. (a) long (b) short (c) missing (d) round
  2. 2.🔍 Which is the odd one out? (a) clear glass (b) clean water (c) a brick (d) air
  3. 3.🌍 Why does the stick’s shadow move during the day? (a) the stick grows (b) the stick walks (c) Earth keeps spinning (d) the ground slides
  4. 4.🧺 Which of these is needed for the shadow clock? (a) a mirror (b) a sunny open place (c) a magnet (d) a balloon
  5. 5.True or false: a clock to check is needed for the shadow clock. (a) True (b) False
  6. 6.🌞 When is a stick’s shadow the shortest? (a) early morning (b) at night (c) late evening (d) around noon
  7. 7.🛟 While watching shadows outdoors, what must you never do? (a) look straight at the Sun (b) sit in the shade (c) wear a cap (d) mark with chalk
  8. 8.True or false: chalk to mark shadows is needed for the shadow clock. (a) False (b) True
  9. 9.True or false: a steel plate is translucent. (a) False (b) True
  10. 10.True or false: clear glass is transparent. (a) True (b) False
  11. 11.🛟 What should you wear for a long time in the hot sun? (a) a cap or hat (b) a raincoat (c) nothing on your head (d) a woollen sweater
  12. 12.🔦 Is oily paper opaque, translucent or transparent? (a) transparent (b) translucent (c) opaque
  13. 13.🧺 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 balloon (d) a straight stick
  14. 14.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the time of day is what we measure. (a) True (b) False
  15. 15.🔦 Is a steel plate opaque, translucent or transparent? (a) transparent (b) translucent (c) opaque
  16. 16.🧺 Do we need yeast for the shadow clock? (a) needed (b) not needed
  17. 17.🔦 Is butter paper opaque, translucent or transparent? (a) opaque (b) translucent (c) transparent
  18. 18.True or false: frosted glass is opaque. (a) False (b) True
  19. 19.🧺 Do we need a straight stick for the shadow clock? (a) not needed (b) needed
  20. 20.🧺 Do we need a clock to check for the shadow clock? (a) needed (b) not needed
  21. 21.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a sunny open place (b) a clock to check (c) a straight stick (d) a magnet
  22. 22.🧺 Do we need a mirror for the shadow clock? (a) needed (b) not needed
  23. 23.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the stick kept upright is kept the same. (a) True (b) False
  24. 24.📘 Why does a shadow form? (a) the ground is dark (b) an object blocks light (c) light bends round it (d) the object is cold
  25. 25.⚖️ 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
  26. 26.🔦 Is tissue paper opaque, translucent or transparent? (a) opaque (b) transparent (c) translucent
  27. 27.True or false: frosted glass is transparent. (a) False (b) True
  28. 28.True or false: a clock to check is not needed for the shadow clock. (a) False (b) True
  29. 29.🔦 Which of these is transparent? (a) a book (b) clean water (c) frosted glass (d) a wooden board
  30. 30.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a sunny open place (b) a battery cell (c) chalk to mark shadows (d) a clock to check
  31. 31.🔮 Predict: you move a torch closer to your hand. The shadow on the wall gets ___. (a) brighter (b) coloured (c) bigger (d) smaller
  32. 32.🧺 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) yeast
  33. 33.🔦 Which of these is translucent? (a) butter paper (b) clear glass (c) a steel plate (d) clean water
  34. 34.🔍 Which is the odd one out? (a) butter paper (b) a steel plate (c) a wooden board (d) a book
  35. 35.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a sunny open place (b) a mirror (c) a straight stick (d) a clock to check
  36. 36.🕰️ What is a sundial used for? (a) measuring rain (b) weighing things (c) making rainbows (d) telling the time
  37. 37.🔦 Which of these is translucent? (a) a brick (b) clean water (c) frosted glass (d) a wooden board
  38. 38.True or false: a book is transparent. (a) False (b) True
  39. 39.True or false: a balloon is needed for the shadow clock. (a) True (b) False
  40. 40.🧺 Do we need a sunny open place for the shadow clock? (a) not needed (b) needed

Answer key

  1. long
  2. a brick
  3. Earth keeps spinning
  4. a sunny open place
  5. True
  6. around noon
  7. look straight at the Sun
  8. True
  9. False
  10. True
  11. a cap or hat
  12. translucent
  13. a balloon
  14. False
  15. opaque
  16. not needed
  17. translucent
  18. False
  19. needed
  20. needed
  21. a magnet
  22. not needed
  23. True
  24. an object blocks light
  25. the time of day
  26. translucent
  27. False
  28. False
  29. clean water
  30. a battery cell
  31. bigger
  32. yeast
  33. butter paper
  34. butter paper
  35. a mirror
  36. telling the time
  37. frosted glass
  38. False
  39. False
  40. needed

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