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Shadow and Sundial Experiment Worksheet

Science experiments lesson 27: Shadows and a sundial · Set 219 · 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 not needed for the shadow clock? (a) yeast (b) a clock to check (c) a straight stick (d) a sunny open place
  2. 2.True or false: a wooden board is translucent. (a) True (b) False
  3. 3.True or false: a magnet is needed for the shadow clock. (a) False (b) True
  4. 4.🕰️ What is a sundial used for? (a) making rainbows (b) weighing things (c) measuring rain (d) telling the time
  5. 5.🔍 Which is the odd one out? (a) frosted glass (b) butter paper (c) oily paper (d) air
  6. 6.🧺 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 magnet
  7. 7.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a balloon (b) a sunny open place (c) a straight stick (d) a clock to check
  8. 8.🧺 Which of these is needed for the shadow clock? (a) chalk to mark shadows (b) a balloon (c) a battery cell (d) a magnet
  9. 9.🔦 Which of these is opaque? (a) tissue paper (b) air (c) frosted glass (d) a brick
  10. 10.🧺 Do we need a sunny open place for the shadow clock? (a) needed (b) not needed
  11. 11.🌞 When is a stick’s shadow the shortest? (a) early morning (b) around noon (c) at night (d) late evening
  12. 12.🌍 Why does the stick’s shadow move during the day? (a) Earth keeps spinning (b) the stick grows (c) the ground slides (d) the stick walks
  13. 13.🔍 Which is the odd one out? (a) a book (b) a wooden board (c) butter paper (d) a steel plate
  14. 14.⚖️ 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
  15. 15.True or false: a battery cell is needed for the shadow clock. (a) True (b) False
  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.🔍 Which is the odd one out? (a) a book (b) a steel plate (c) frosted glass (d) a wooden board
  18. 18.⚖️ Fair test — how does the shadow of a stick change through the day? Which of these is the one thing we change? (a) the stick kept upright (b) the same stick (c) the same spot (d) the time of day
  19. 19.🔦 Which of these is opaque? (a) a steel plate (b) clean water (c) tissue paper (d) frosted glass
  20. 20.True or false: a straight stick is not needed for the shadow clock. (a) False (b) True
  21. 21.🔮 Predict: the Sun is low in the evening sky. The stick’s shadow is ___. (a) short (b) round (c) long (d) missing
  22. 22.🛟 What should you wear for a long time in the hot sun? (a) nothing on your head (b) a raincoat (c) a woollen sweater (d) a cap or hat
  23. 23.🛟 While watching shadows outdoors, what must you never do? (a) wear a cap (b) look straight at the Sun (c) sit in the shade (d) mark with chalk
  24. 24.🔦 Is clear plastic film opaque, translucent or transparent? (a) translucent (b) transparent (c) opaque
  25. 25.🧺 Do we need a clock to check for the shadow clock? (a) needed (b) not needed
  26. 26.🔦 Is a brick opaque, translucent or transparent? (a) opaque (b) translucent (c) transparent
  27. 27.🔦 Is tissue paper opaque, translucent or transparent? (a) transparent (b) opaque (c) translucent
  28. 28.📘 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
  29. 29.🔮 Predict: on a fully cloudy day, the sundial ___. (a) shows two times (b) runs faster (c) works better (d) does not work well
  30. 30.🧺 Which of these is not needed for the shadow clock? (a) chalk to mark shadows (b) a sunny open place (c) a straight stick (d) a balloon
  31. 31.🔦 Which of these is transparent? (a) clear glass (b) a wooden board (c) frosted glass (d) a brick
  32. 32.⚖️ 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
  33. 33.🔍 Which is the odd one out? (a) tissue paper (b) your hand (c) oily paper (d) butter paper
  34. 34.⚖️ Fair test — how does the shadow of a stick change through the day? What do we do with “shadow length”? (a) we change it (b) we keep it the same (c) we measure it
  35. 35.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the same spot is what we measure. (a) False (b) True
  36. 36.True or false: a wooden board is opaque. (a) False (b) True
  37. 37.True or false: a sunny open place is not needed for the shadow clock. (a) False (b) True
  38. 38.⚖️ 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
  39. 39.True or false: a steel plate is opaque. (a) False (b) True
  40. 40.True or false: chalk to mark shadows is not needed for the shadow clock. (a) True (b) False

Answer key

  1. yeast
  2. False
  3. False
  4. telling the time
  5. air
  6. a magnet
  7. a balloon
  8. chalk to mark shadows
  9. a brick
  10. needed
  11. around noon
  12. Earth keeps spinning
  13. butter paper
  14. we keep it the same
  15. False
  16. a mirror
  17. frosted glass
  18. the time of day
  19. a steel plate
  20. False
  21. long
  22. a cap or hat
  23. look straight at the Sun
  24. transparent
  25. needed
  26. opaque
  27. translucent
  28. an object blocks light
  29. does not work well
  30. a balloon
  31. clear glass
  32. we keep it the same
  33. your hand
  34. we measure it
  35. False
  36. True
  37. False
  38. we change it
  39. True
  40. False

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