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Shadow and Sundial Experiment Worksheet

Science experiments lesson 27: Shadows and a sundial · Set 287 · 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.🔍 Which is the odd one out? (a) clear glass (b) frosted glass (c) butter paper (d) tissue paper
  2. 2.🛟 What should you wear for a long time in the hot sun? (a) a raincoat (b) nothing on your head (c) a cap or hat (d) a woollen sweater
  3. 3.⚖️ Fair test — how does the shadow of a stick change through the day? What do we do with “the stick kept upright”? (a) we change it (b) we measure it (c) we keep it the same
  4. 4.True or false: a steel plate is opaque. (a) False (b) True
  5. 5.🕰️ What is a sundial used for? (a) telling the time (b) making rainbows (c) weighing things (d) measuring rain
  6. 6.🧺 Which of these is not needed for the shadow clock? (a) chalk to mark shadows (b) a magnet (c) a straight stick (d) a sunny open place
  7. 7.True or false: a brick is transparent. (a) False (b) True
  8. 8.🧺 Do we need a balloon for the shadow clock? (a) needed (b) not needed
  9. 9.🌍 Why does the stick’s shadow move during the day? (a) Earth keeps spinning (b) the ground slides (c) the stick grows (d) the stick walks
  10. 10.🛟 While watching shadows outdoors, what must you never do? (a) sit in the shade (b) mark with chalk (c) look straight at the Sun (d) wear a cap
  11. 11.True or false: a balloon is needed for the shadow clock. (a) True (b) False
  12. 12.🔮 Predict: you move a torch closer to your hand. The shadow on the wall gets ___. (a) brighter (b) coloured (c) smaller (d) bigger
  13. 13.🔦 Which of these is transparent? (a) a steel plate (b) tissue paper (c) butter paper (d) clear plastic film
  14. 14.⚖️ 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) True (b) False
  15. 15.🔦 Is tissue paper opaque, translucent or transparent? (a) translucent (b) opaque (c) transparent
  16. 16.True or false: a book is opaque. (a) False (b) True
  17. 17.⚖️ Fair test — how does the shadow of a stick change through the day? Which of these is what we measure? (a) the same stick (b) the time of day (c) the stick kept upright (d) shadow length
  18. 18.⚖️ Fair test — how does the shadow of a stick change through the day? Which of these is the one thing we change? (a) the same stick (b) shadow length (c) the stick kept upright (d) the time of day
  19. 19.⚖️ Fair test — how does the shadow of a stick change through the day? What do we do with “the same spot”? (a) we measure it (b) we change it (c) we keep it the same
  20. 20.🧺 Do we need yeast for the shadow clock? (a) not needed (b) needed
  21. 21.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) turmeric powder (b) chalk to mark shadows (c) a clock to check (d) a sunny open place
  22. 22.🧺 Which of these is not needed for the shadow clock? (a) yeast (b) a sunny open place (c) a straight stick (d) chalk to mark shadows
  23. 23.🔦 Which of these is opaque? (a) clean water (b) air (c) your hand (d) oily paper
  24. 24.🧺 Do we need a battery cell for the shadow clock? (a) not needed (b) needed
  25. 25.🧺 Which of these is needed for the shadow clock? (a) a mirror (b) turmeric powder (c) yeast (d) a clock to check
  26. 26.🔦 Is clean water opaque, translucent or transparent? (a) opaque (b) transparent (c) translucent
  27. 27.🔦 Which of these is transparent? (a) butter paper (b) oily paper (c) a book (d) clean water
  28. 28.⚖️ Fair test — how does the shadow of a stick change through the day? What do we do with “the same stick”? (a) we keep it the same (b) we change it (c) we measure it
  29. 29.True or false: chalk to mark shadows is needed for the shadow clock. (a) True (b) False
  30. 30.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the same stick is kept the same. (a) False (b) True
  31. 31.True or false: a balloon is not needed for the shadow clock. (a) True (b) False
  32. 32.🧺 Do we need turmeric powder for the shadow clock? (a) needed (b) not needed
  33. 33.🔦 Is a brick opaque, translucent or transparent? (a) opaque (b) transparent (c) translucent
  34. 34.True or false: a magnet is needed for the shadow clock. (a) True (b) False
  35. 35.🧺 Do we need a sunny open place for the shadow clock? (a) needed (b) not needed
  36. 36.🧺 Which of these is needed for the shadow clock? (a) yeast (b) a sunny open place (c) turmeric powder (d) a balloon
  37. 37.🔦 Is clear plastic film opaque, translucent or transparent? (a) transparent (b) opaque (c) translucent
  38. 38.⚖️ 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) False (b) True
  39. 39.🌅 In the morning the Sun is in the east. Which way does a shadow point? (a) west (b) east (c) north (d) up
  40. 40.⚖️ 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) True (b) False

Answer key

  1. clear glass
  2. a cap or hat
  3. we keep it the same
  4. True
  5. telling the time
  6. a magnet
  7. False
  8. not needed
  9. Earth keeps spinning
  10. look straight at the Sun
  11. False
  12. bigger
  13. clear plastic film
  14. False
  15. translucent
  16. True
  17. shadow length
  18. the time of day
  19. we keep it the same
  20. not needed
  21. turmeric powder
  22. yeast
  23. your hand
  24. not needed
  25. a clock to check
  26. transparent
  27. clean water
  28. we keep it the same
  29. True
  30. True
  31. True
  32. not needed
  33. opaque
  34. False
  35. needed
  36. a sunny open place
  37. transparent
  38. False
  39. west
  40. True

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