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Shadow and Sundial Experiment Worksheet

Science experiments lesson 27: Shadows and a sundial · Set 74 · 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 straight stick
  2. 2.True or false: clear glass is transparent. (a) False (b) True
  3. 3.🕰️ What is a sundial used for? (a) telling the time (b) making rainbows (c) weighing things (d) measuring rain
  4. 4.True or false: tissue paper is translucent. (a) True (b) False
  5. 5.🧺 Which of these is needed for the shadow clock? (a) turmeric powder (b) a mirror (c) a balloon (d) a straight stick
  6. 6.🌞 When is a stick’s shadow the shortest? (a) at night (b) around noon (c) late evening (d) early morning
  7. 7.🛟 While watching shadows outdoors, what must you never do? (a) wear a cap (b) mark with chalk (c) sit in the shade (d) look straight at the Sun
  8. 8.True or false: turmeric powder is not needed for the shadow clock. (a) True (b) False
  9. 9.🧺 Which of these is not needed for the shadow clock? (a) yeast (b) chalk to mark shadows (c) a straight stick (d) a sunny open place
  10. 10.🔦 Which of these is opaque? (a) a book (b) tissue paper (c) butter paper (d) clear glass
  11. 11.⚖️ Fair test — how does the shadow of a stick change through the day? What do we do with “the same stick”? (a) we change it (b) we keep it the same (c) we measure it
  12. 12.True or false: clean water is translucent. (a) False (b) True
  13. 13.🧺 Which of these is not needed for the shadow clock? (a) chalk to mark shadows (b) a straight stick (c) a battery cell (d) a clock to check
  14. 14.🔦 Is oily paper opaque, translucent or transparent? (a) translucent (b) opaque (c) transparent
  15. 15.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a clock to check (b) a mirror (c) a straight stick (d) chalk to mark shadows
  16. 16.⚖️ 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) False (b) True
  17. 17.🧺 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) a magnet
  18. 18.🌍 Why does the stick’s shadow move during the day? (a) the stick walks (b) the stick grows (c) Earth keeps spinning (d) the ground slides
  19. 19.True or false: a magnet is not needed for the shadow clock. (a) False (b) True
  20. 20.True or false: turmeric powder is needed for the shadow clock. (a) True (b) False
  21. 21.🧺 Do we need a mirror for the shadow clock? (a) needed (b) not needed
  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) the time of day (b) the stick kept upright (c) the same stick (d) shadow length
  23. 23.🔮 Predict: you move a torch closer to your hand. The shadow on the wall gets ___. (a) coloured (b) brighter (c) smaller (d) bigger
  24. 24.⚖️ Fair test — how does the shadow of a stick change through the day? What do we do with “the same spot”? (a) we keep it the same (b) we measure it (c) we change it
  25. 25.True or false: a battery cell is not needed for the shadow clock. (a) True (b) False
  26. 26.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the stick kept upright is what we measure. (a) True (b) False
  27. 27.🔦 Which of these is opaque? (a) clean water (b) your hand (c) clear glass (d) tissue paper
  28. 28.🔦 Is butter paper opaque, translucent or transparent? (a) transparent (b) translucent (c) opaque
  29. 29.⚖️ 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) shadow length (c) the time of day
  30. 30.True or false: a book is opaque. (a) True (b) False
  31. 31.🧺 Do we need a balloon for the shadow clock? (a) needed (b) not needed
  32. 32.🔦 Which of these is transparent? (a) a wooden board (b) clear glass (c) butter paper (d) a book
  33. 33.🔮 Predict: on a fully cloudy day, the sundial ___. (a) does not work well (b) runs faster (c) works better (d) shows two times
  34. 34.🌅 In the morning the Sun is in the east. Which way does a shadow point? (a) east (b) north (c) up (d) west
  35. 35.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a clock to check (b) a sunny open place (c) chalk to mark shadows (d) a battery cell
  36. 36.🧺 Do we need turmeric powder for the shadow clock? (a) needed (b) not needed
  37. 37.🔍 Which is the odd one out? (a) your hand (b) a steel plate (c) a wooden board (d) oily paper
  38. 38.🔦 Is tissue paper opaque, translucent or transparent? (a) transparent (b) translucent (c) opaque
  39. 39.⚖️ 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
  40. 40.True or false: a steel plate is opaque. (a) False (b) True

Answer key

  1. turmeric powder
  2. True
  3. telling the time
  4. True
  5. a straight stick
  6. around noon
  7. look straight at the Sun
  8. True
  9. yeast
  10. a book
  11. we keep it the same
  12. False
  13. a battery cell
  14. translucent
  15. a mirror
  16. True
  17. a magnet
  18. Earth keeps spinning
  19. True
  20. False
  21. not needed
  22. the time of day
  23. bigger
  24. we keep it the same
  25. True
  26. False
  27. your hand
  28. translucent
  29. the same spot
  30. True
  31. not needed
  32. clear glass
  33. does not work well
  34. west
  35. a battery cell
  36. not needed
  37. oily paper
  38. translucent
  39. False
  40. True

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