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Shadow and Sundial Experiment Worksheet

Science experiments lesson 27: Shadows and a sundial · Set 590 · 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.

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  1. 1.🔦 Is a brick opaque, translucent or transparent? (a) translucent (b) opaque (c) transparent
  2. 2.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a straight stick (b) a battery cell (c) a clock to check (d) a sunny open place
  3. 3.True or false: frosted glass is transparent. (a) True (b) False
  4. 4.🔦 Is oily paper opaque, translucent or transparent? (a) opaque (b) transparent (c) translucent
  5. 5.🌞 When is a stick’s shadow the shortest? (a) late evening (b) at night (c) around noon (d) early morning
  6. 6.🧺 Do we need yeast for the shadow clock? (a) not needed (b) needed
  7. 7.🔮 Predict: on a fully cloudy day, the sundial ___. (a) works better (b) runs faster (c) does not work well (d) shows two times
  8. 8.🧺 Which of these is needed for the shadow clock? (a) turmeric powder (b) a balloon (c) a battery cell (d) a straight stick
  9. 9.🧺 Do we need a straight stick for the shadow clock? (a) not needed (b) needed
  10. 10.🧺 Which of these is needed for the shadow clock? (a) turmeric powder (b) yeast (c) a battery cell (d) a sunny open place
  11. 11.🔍 Which is the odd one out? (a) a steel plate (b) a brick (c) clean water (d) a wooden board
  12. 12.⚖️ 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
  13. 13.🔦 Which of these is opaque? (a) oily paper (b) a book (c) air (d) frosted glass
  14. 14.True or false: a clock to check is needed for the shadow clock. (a) True (b) False
  15. 15.🔦 Is a book opaque, translucent or transparent? (a) opaque (b) transparent (c) translucent
  16. 16.True or false: your hand is opaque. (a) False (b) True
  17. 17.🔍 Which is the odd one out? (a) a wooden board (b) clear glass (c) clear plastic film (d) clean water
  18. 18.🔍 Which is the odd one out? (a) butter paper (b) clear glass (c) tissue paper (d) frosted glass
  19. 19.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the same spot is what we measure. (a) True (b) False
  20. 20.🔦 Is your hand opaque, translucent or transparent? (a) opaque (b) transparent (c) translucent
  21. 21.True or false: a magnet is needed for the shadow clock. (a) True (b) False
  22. 22.📘 Why does a shadow form? (a) light bends round it (b) the ground is dark (c) the object is cold (d) an object blocks light
  23. 23.⚖️ 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
  24. 24.True or false: frosted glass is translucent. (a) True (b) False
  25. 25.🧺 Do we need a clock to check for the shadow clock? (a) needed (b) not needed
  26. 26.⚖️ Fair test — how does the shadow of a stick change through the day? Which of these is what we measure? (a) the same spot (b) shadow length (c) the time of day (d) the same stick
  27. 27.🔍 Which is the odd one out? (a) butter paper (b) a wooden board (c) a steel plate (d) your hand
  28. 28.True or false: a wooden board is opaque. (a) False (b) True
  29. 29.🔍 Which is the odd one out? (a) a steel plate (b) a book (c) a wooden board (d) air
  30. 30.⚖️ Fair test — how does the shadow of a stick change through the day? What do we do with “the time of day”? (a) we measure it (b) we change it (c) we keep it the same
  31. 31.⚖️ Fair test — how does the shadow of a stick change through the day? What do we do with “the stick kept upright”? (a) we keep it the same (b) we change it (c) we measure it
  32. 32.🔦 Which of these is opaque? (a) clear glass (b) a wooden board (c) butter paper (d) clear plastic film
  33. 33.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a straight stick (b) chalk to mark shadows (c) a clock to check (d) turmeric powder
  34. 34.🧺 Which of these is not needed for the shadow clock? (a) a magnet (b) a clock to check (c) a sunny open place (d) chalk to mark shadows
  35. 35.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the same stick is what we measure. (a) False (b) True
  36. 36.🕰️ What is a sundial used for? (a) making rainbows (b) weighing things (c) measuring rain (d) telling the time
  37. 37.🧺 Which of these is needed for the shadow clock? (a) a mirror (b) chalk to mark shadows (c) a magnet (d) yeast
  38. 38.🔮 Predict: you move a torch closer to your hand. The shadow on the wall gets ___. (a) brighter (b) bigger (c) coloured (d) smaller
  39. 39.🛟 While watching shadows outdoors, what must you never do? (a) sit in the shade (b) wear a cap (c) mark with chalk (d) look straight at the Sun
  40. 40.🌍 Why does the stick’s shadow move during the day? (a) the stick grows (b) the stick walks (c) the ground slides (d) Earth keeps spinning

Answer key

  1. opaque
  2. a battery cell
  3. False
  4. translucent
  5. around noon
  6. not needed
  7. does not work well
  8. a straight stick
  9. needed
  10. a sunny open place
  11. clean water
  12. True
  13. a book
  14. True
  15. opaque
  16. True
  17. a wooden board
  18. clear glass
  19. False
  20. opaque
  21. False
  22. an object blocks light
  23. the same spot
  24. True
  25. needed
  26. shadow length
  27. butter paper
  28. True
  29. air
  30. we change it
  31. we keep it the same
  32. a wooden board
  33. turmeric powder
  34. a magnet
  35. False
  36. telling the time
  37. chalk to mark shadows
  38. bigger
  39. look straight at the Sun
  40. Earth keeps spinning

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