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Shadow and Sundial Experiment Worksheet

Science experiments lesson 27: Shadows and a sundial · Set 418 · 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.🔦 Is butter paper opaque, translucent or transparent? (a) translucent (b) transparent (c) opaque
  2. 2.🔍 Which is the odd one out? (a) clear plastic film (b) clear glass (c) tissue paper (d) clean water
  3. 3.🌍 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
  4. 4.True or false: tissue paper is opaque. (a) True (b) False
  5. 5.True or false: butter paper is translucent. (a) True (b) False
  6. 6.🧺 Do we need a mirror for the shadow clock? (a) not needed (b) needed
  7. 7.🧺 Which of these is needed for the shadow clock? (a) a mirror (b) a sunny open place (c) a balloon (d) a battery cell
  8. 8.🧺 Which of these is not needed for the shadow clock? (a) a clock to check (b) a straight stick (c) chalk to mark shadows (d) a battery cell
  9. 9.🔦 Which of these is translucent? (a) a wooden board (b) clean water (c) air (d) oily paper
  10. 10.🛟 While watching shadows outdoors, what must you never do? (a) look straight at the Sun (b) mark with chalk (c) wear a cap (d) sit in the shade
  11. 11.🔮 Predict: on a fully cloudy day, the sundial ___. (a) does not work well (b) works better (c) runs faster (d) shows two times
  12. 12.🧺 Do we need a straight stick for the shadow clock? (a) needed (b) not needed
  13. 13.🔦 Is a wooden board opaque, translucent or transparent? (a) opaque (b) translucent (c) transparent
  14. 14.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the stick kept upright is the one thing we change. (a) True (b) False
  15. 15.🧺 Which of these is needed for the shadow clock? (a) a straight stick (b) a balloon (c) a battery cell (d) turmeric powder
  16. 16.🧺 Which of these is needed for the shadow clock? (a) yeast (b) a balloon (c) a magnet (d) a clock to check
  17. 17.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a sunny open place (b) a straight stick (c) a clock to check (d) a magnet
  18. 18.🧺 Which of these is not needed for the shadow clock? (a) a straight stick (b) a sunny open place (c) chalk to mark shadows (d) a mirror
  19. 19.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) turmeric powder (b) a clock to check (c) a sunny open place (d) a straight stick
  20. 20.🧺 Do we need yeast for the shadow clock? (a) needed (b) not needed
  21. 21.⚖️ 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 stick kept upright (c) the time of day
  22. 22.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a straight stick (b) yeast (c) chalk to mark shadows (d) a clock to check
  23. 23.🧺 Do we need a magnet for the shadow clock? (a) needed (b) not needed
  24. 24.True or false: a magnet is not needed for the shadow clock. (a) False (b) True
  25. 25.🧺 Do we need turmeric powder for the shadow clock? (a) needed (b) not needed
  26. 26.⚖️ 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
  27. 27.🧺 Which of these is not needed for the shadow clock? (a) a straight stick (b) a balloon (c) chalk to mark shadows (d) a sunny open place
  28. 28.⚖️ 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) True (b) False
  29. 29.🔦 Is oily paper opaque, translucent or transparent? (a) opaque (b) transparent (c) translucent
  30. 30.📘 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
  31. 31.🧺 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) a straight stick (d) a balloon
  32. 32.🔍 Which is the odd one out? (a) oily paper (b) butter paper (c) tissue paper (d) clear glass
  33. 33.🌅 In the morning the Sun is in the east. Which way does a shadow point? (a) east (b) north (c) up (d) west
  34. 34.True or false: a book is opaque. (a) True (b) False
  35. 35.🔮 Predict: you move a torch closer to your hand. The shadow on the wall gets ___. (a) smaller (b) brighter (c) bigger (d) coloured
  36. 36.True or false: chalk to mark shadows is needed for the shadow clock. (a) False (b) True
  37. 37.🔦 Which of these is opaque? (a) clear glass (b) air (c) your hand (d) oily paper
  38. 38.🔦 Is a steel plate opaque, translucent or transparent? (a) transparent (b) translucent (c) opaque
  39. 39.True or false: a mirror is needed for the shadow clock. (a) False (b) True
  40. 40.⚖️ Fair test — how does the shadow of a stick change through the day? What do we do with “the same stick”? (a) we measure it (b) we change it (c) we keep it the same

Answer key

  1. translucent
  2. tissue paper
  3. Earth keeps spinning
  4. False
  5. True
  6. not needed
  7. a sunny open place
  8. a battery cell
  9. oily paper
  10. look straight at the Sun
  11. does not work well
  12. needed
  13. opaque
  14. False
  15. a straight stick
  16. a clock to check
  17. a magnet
  18. a mirror
  19. turmeric powder
  20. not needed
  21. the stick kept upright
  22. yeast
  23. not needed
  24. True
  25. not needed
  26. we measure it
  27. a balloon
  28. True
  29. translucent
  30. an object blocks light
  31. a balloon
  32. clear glass
  33. west
  34. True
  35. bigger
  36. True
  37. your hand
  38. opaque
  39. False
  40. we keep it the same

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