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Shadow and Sundial Experiment Worksheet

Science experiments lesson 27: Shadows and a sundial · Set 714 · 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: a mirror is needed for the shadow clock. (a) False (b) True
  2. 2.🔍 Which is the odd one out? (a) a steel plate (b) a book (c) clear glass (d) your hand
  3. 3.🛟 What should you wear for a long time in the hot sun? (a) a woollen sweater (b) a raincoat (c) a cap or hat (d) nothing on your head
  4. 4.🔮 Predict: the Sun is low in the evening sky. The stick’s shadow is ___. (a) long (b) missing (c) short (d) round
  5. 5.🔦 Which of these is opaque? (a) a wooden board (b) oily paper (c) air (d) tissue paper
  6. 6.🔮 Predict: you move a torch closer to your hand. The shadow on the wall gets ___. (a) smaller (b) bigger (c) coloured (d) brighter
  7. 7.🧺 Do we need a straight stick for the shadow clock? (a) needed (b) not needed
  8. 8.True or false: a battery cell is needed for the shadow clock. (a) False (b) True
  9. 9.🧺 Which of these is needed for the shadow clock? (a) a mirror (b) a balloon (c) yeast (d) a sunny open place
  10. 10.⚖️ 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 keep it the same (c) we measure it
  11. 11.🔮 Predict: on a fully cloudy day, the sundial ___. (a) shows two times (b) runs faster (c) does not work well (d) works better
  12. 12.🛟 While watching shadows outdoors, what must you never do? (a) wear a cap (b) sit in the shade (c) mark with chalk (d) look straight at the Sun
  13. 13.🧺 Which of these is needed for the shadow clock? (a) a battery cell (b) a straight stick (c) a magnet (d) a balloon
  14. 14.🕰️ What is a sundial used for? (a) weighing things (b) telling the time (c) measuring rain (d) making rainbows
  15. 15.🌞 When is a stick’s shadow the shortest? (a) early morning (b) at night (c) late evening (d) around noon
  16. 16.🔦 Is frosted glass opaque, translucent or transparent? (a) transparent (b) translucent (c) opaque
  17. 17.🔦 Which of these is translucent? (a) a book (b) clear plastic film (c) oily paper (d) your hand
  18. 18.⚖️ Fair test — how does the shadow of a stick change through the day? Which of these is what we measure? (a) the time of day (b) the same stick (c) shadow length (d) the same spot
  19. 19.🔍 Which is the odd one out? (a) butter paper (b) a wooden board (c) a book (d) your hand
  20. 20.🧺 Which of these is not needed for the shadow clock? (a) a straight stick (b) chalk to mark shadows (c) a clock to check (d) turmeric powder
  21. 21.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a mirror (b) chalk to mark shadows (c) a straight stick (d) a sunny open place
  22. 22.⚖️ Fair test — how does the shadow of a stick change through the day? Which of these is the one thing we change? (a) shadow length (b) the same stick (c) the stick kept upright (d) the time of day
  23. 23.🔍 Which is the odd one out? (a) butter paper (b) frosted glass (c) your hand (d) oily paper
  24. 24.🔦 Which of these is translucent? (a) clear glass (b) butter paper (c) a book (d) your hand
  25. 25.True or false: clear plastic film is transparent. (a) False (b) True
  26. 26.🔦 Is a wooden board opaque, translucent or transparent? (a) transparent (b) translucent (c) opaque
  27. 27.⚖️ 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
  28. 28.🧺 Do we need a magnet for the shadow clock? (a) needed (b) not needed
  29. 29.True or false: yeast is needed for the shadow clock. (a) True (b) False
  30. 30.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a straight stick (b) a clock to check (c) a sunny open place (d) yeast
  31. 31.⚖️ 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 same spot (c) the time of day
  32. 32.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the same spot is the one thing we change. (a) False (b) True
  33. 33.True or false: a clock to check is not needed for the shadow clock. (a) True (b) False
  34. 34.True or false: a mirror is not needed for the shadow clock. (a) True (b) False
  35. 35.🔦 Which of these is opaque? (a) air (b) frosted glass (c) a brick (d) tissue paper
  36. 36.🔦 Which of these is transparent? (a) your hand (b) butter paper (c) a book (d) clear glass
  37. 37.📘 Why does a shadow form? (a) the object is cold (b) the ground is dark (c) light bends round it (d) an object blocks light
  38. 38.⚖️ 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 stick kept upright
  39. 39.True or false: chalk to mark shadows is not needed for the shadow clock. (a) True (b) False
  40. 40.🧺 Do we need a clock to check for the shadow clock? (a) needed (b) not needed

Answer key

  1. False
  2. clear glass
  3. a cap or hat
  4. long
  5. a wooden board
  6. bigger
  7. needed
  8. False
  9. a sunny open place
  10. we change it
  11. does not work well
  12. look straight at the Sun
  13. a straight stick
  14. telling the time
  15. around noon
  16. translucent
  17. oily paper
  18. shadow length
  19. butter paper
  20. turmeric powder
  21. a mirror
  22. the time of day
  23. your hand
  24. butter paper
  25. True
  26. opaque
  27. True
  28. not needed
  29. False
  30. yeast
  31. the same spot
  32. False
  33. False
  34. True
  35. a brick
  36. clear glass
  37. an object blocks light
  38. the stick kept upright
  39. False
  40. needed

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