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Shadow and Sundial Experiment Worksheet

Science experiments lesson 27: Shadows and a sundial · Set 248 · 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.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a clock to check (b) turmeric powder (c) chalk to mark shadows (d) a sunny open place
  2. 2.True or false: a straight stick is not needed for the shadow clock. (a) True (b) False
  3. 3.🔍 Which is the odd one out? (a) clear plastic film (b) oily paper (c) air (d) clean water
  4. 4.🧺 Do we need a straight stick for the shadow clock? (a) not needed (b) needed
  5. 5.🔦 Is clear glass opaque, translucent or transparent? (a) opaque (b) translucent (c) transparent
  6. 6.🔍 Which is the odd one out? (a) a book (b) butter paper (c) a steel plate (d) a brick
  7. 7.⚖️ 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) shadow length (c) the same spot (d) the time of day
  8. 8.🛟 What should you wear for a long time in the hot sun? (a) a cap or hat (b) nothing on your head (c) a woollen sweater (d) a raincoat
  9. 9.🔦 Which of these is opaque? (a) a book (b) clear glass (c) butter paper (d) frosted glass
  10. 10.🌍 Why does the stick’s shadow move during the day? (a) the ground slides (b) the stick grows (c) Earth keeps spinning (d) the stick walks
  11. 11.🔦 Is clean water opaque, translucent or transparent? (a) translucent (b) opaque (c) transparent
  12. 12.True or false: yeast is not needed for the shadow clock. (a) True (b) False
  13. 13.True or false: a straight stick is needed for the shadow clock. (a) True (b) False
  14. 14.🔍 Which is the odd one out? (a) a brick (b) frosted glass (c) butter paper (d) oily paper
  15. 15.🔮 Predict: on a fully cloudy day, the sundial ___. (a) works better (b) runs faster (c) does not work well (d) shows two times
  16. 16.🔮 Predict: you move a torch closer to your hand. The shadow on the wall gets ___. (a) smaller (b) brighter (c) coloured (d) bigger
  17. 17.🕰️ What is a sundial used for? (a) making rainbows (b) weighing things (c) measuring rain (d) telling the time
  18. 18.🔦 Is clear plastic film opaque, translucent or transparent? (a) transparent (b) translucent (c) opaque
  19. 19.True or false: clear plastic film is translucent. (a) True (b) False
  20. 20.🧺 Which of these is needed for the shadow clock? (a) yeast (b) a mirror (c) a magnet (d) a clock to check
  21. 21.⚖️ 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
  22. 22.🧺 Do we need a battery cell for the shadow clock? (a) needed (b) not needed
  23. 23.⚖️ 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) the time of day (c) shadow length
  24. 24.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a battery cell (b) a sunny open place (c) a straight stick (d) a clock to check
  25. 25.🔦 Is a steel plate opaque, translucent or transparent? (a) translucent (b) transparent (c) opaque
  26. 26.🧺 Do we need a clock to check for the shadow clock? (a) needed (b) not needed
  27. 27.True or false: a battery cell is needed for the shadow clock. (a) False (b) True
  28. 28.🛟 While watching shadows outdoors, what must you never do? (a) mark with chalk (b) wear a cap (c) look straight at the Sun (d) sit in the shade
  29. 29.🧺 Which of these is needed for the shadow clock? (a) yeast (b) turmeric powder (c) a magnet (d) a straight stick
  30. 30.True or false: butter paper is opaque. (a) False (b) True
  31. 31.True or false: clean water is transparent. (a) True (b) False
  32. 32.True or false: a mirror is not needed for the shadow clock. (a) True (b) False
  33. 33.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: shadow length is what we measure. (a) True (b) False
  34. 34.🔍 Which is the odd one out? (a) butter paper (b) tissue paper (c) a wooden board (d) frosted glass
  35. 35.🌞 When is a stick’s shadow the shortest? (a) late evening (b) at night (c) early morning (d) around noon
  36. 36.🔍 Which is the odd one out? (a) clean water (b) butter paper (c) oily paper (d) tissue paper
  37. 37.🧺 Which of these is not needed for the shadow clock? (a) a straight stick (b) turmeric powder (c) chalk to mark shadows (d) a sunny open place
  38. 38.🧺 Which of these is needed for the shadow clock? (a) a balloon (b) a mirror (c) a sunny open place (d) a magnet
  39. 39.📘 Why does a shadow form? (a) light bends round it (b) an object blocks light (c) the ground is dark (d) the object is cold
  40. 40.⚖️ Fair test — how does the shadow of a stick change through the day? What do we do with “shadow length”? (a) we keep it the same (b) we change it (c) we measure it

Answer key

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

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