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Shadow and Sundial Experiment Worksheet

Science experiments lesson 27: Shadows and a sundial · Set 471 · 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.⚖️ Fair test — how does the shadow of a stick change through the day? What do we do with “the stick kept upright”? (a) we measure it (b) we keep it the same (c) we change it
  2. 2.🔦 Which of these is translucent? (a) a wooden board (b) a book (c) tissue paper (d) clear glass
  3. 3.🧺 Do we need chalk to mark shadows for the shadow clock? (a) not needed (b) needed
  4. 4.True or false: yeast is needed for the shadow clock. (a) True (b) False
  5. 5.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the same stick is the one thing we change. (a) False (b) True
  6. 6.🛟 What should you wear for a long time in the hot sun? (a) a cap or hat (b) nothing on your head (c) a raincoat (d) a woollen sweater
  7. 7.🔮 Predict: the Sun is low in the evening sky. The stick’s shadow is ___. (a) long (b) missing (c) round (d) short
  8. 8.⚖️ 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
  9. 9.⚖️ Fair test — how does the shadow of a stick change through the day? Which of these is what we measure? (a) the stick kept upright (b) the same spot (c) shadow length (d) the same stick
  10. 10.🛟 While watching shadows outdoors, what must you never do? (a) sit in the shade (b) wear a cap (c) mark with chalk (d) look straight at the Sun
  11. 11.🔦 Is tissue paper opaque, translucent or transparent? (a) opaque (b) translucent (c) transparent
  12. 12.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a mirror (b) a sunny open place (c) a straight stick (d) a clock to check
  13. 13.🔍 Which is the odd one out? (a) a brick (b) clean water (c) air (d) clear plastic film
  14. 14.🧺 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
  15. 15.🌞 When is a stick’s shadow the shortest? (a) early morning (b) late evening (c) around noon (d) at night
  16. 16.🧺 Which of these is not needed for the shadow clock? (a) chalk to mark shadows (b) a balloon (c) a sunny open place (d) a straight stick
  17. 17.🔦 Which of these is transparent? (a) a book (b) clear glass (c) oily paper (d) tissue paper
  18. 18.🧺 Do we need yeast for the shadow clock? (a) not needed (b) needed
  19. 19.🧺 Which of these is needed for the shadow clock? (a) a mirror (b) a balloon (c) turmeric powder (d) a clock to check
  20. 20.True or false: a book is opaque. (a) True (b) False
  21. 21.🔮 Predict: you move a torch closer to your hand. The shadow on the wall gets ___. (a) smaller (b) bigger (c) coloured (d) brighter
  22. 22.🔦 Is a brick opaque, translucent or transparent? (a) opaque (b) translucent (c) transparent
  23. 23.⚖️ 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 spot (b) the stick kept upright (c) the time of day (d) the same stick
  24. 24.🕰️ What is a sundial used for? (a) making rainbows (b) weighing things (c) telling the time (d) measuring rain
  25. 25.🔍 Which is the odd one out? (a) butter paper (b) a wooden board (c) your hand (d) a brick
  26. 26.🧺 Which of these is needed for the shadow clock? (a) a magnet (b) turmeric powder (c) a balloon (d) a straight stick
  27. 27.True or false: a brick is translucent. (a) True (b) False
  28. 28.True or false: a steel plate is translucent. (a) True (b) False
  29. 29.True or false: oily paper is opaque. (a) True (b) False
  30. 30.⚖️ Fair test — how does the shadow of a stick change through the day? What do we do with “the time of day”? (a) we measure it (b) we keep it the same (c) we change it
  31. 31.🔦 Is clean water opaque, translucent or transparent? (a) translucent (b) opaque (c) transparent
  32. 32.⚖️ Fair test — how does the shadow of a stick change through the day? Which of these is kept the same? (a) the time of day (b) the stick kept upright (c) shadow length
  33. 33.🧺 Do we need a battery cell for the shadow clock? (a) not needed (b) needed
  34. 34.True or false: a mirror is not needed for the shadow clock. (a) False (b) True
  35. 35.True or false: chalk to mark shadows is not needed for the shadow clock. (a) True (b) False
  36. 36.🧺 Which of these is not needed for the shadow clock? (a) a straight stick (b) chalk to mark shadows (c) a mirror (d) a sunny open place
  37. 37.🧺 Which of these is not needed for the shadow clock? (a) a sunny open place (b) a clock to check (c) yeast (d) chalk to mark shadows
  38. 38.🔍 Which is the odd one out? (a) oily paper (b) frosted glass (c) tissue paper (d) clean water
  39. 39.🧺 Which of these is needed for the shadow clock? (a) a battery cell (b) yeast (c) chalk to mark shadows (d) a magnet
  40. 40.🧺 Do we need a magnet for the shadow clock? (a) needed (b) not needed

Answer key

  1. we keep it the same
  2. tissue paper
  3. needed
  4. False
  5. False
  6. a cap or hat
  7. long
  8. False
  9. shadow length
  10. look straight at the Sun
  11. translucent
  12. a mirror
  13. a brick
  14. yeast
  15. around noon
  16. a balloon
  17. clear glass
  18. not needed
  19. a clock to check
  20. True
  21. bigger
  22. opaque
  23. the time of day
  24. telling the time
  25. butter paper
  26. a straight stick
  27. False
  28. False
  29. False
  30. we change it
  31. transparent
  32. the stick kept upright
  33. not needed
  34. True
  35. False
  36. a mirror
  37. yeast
  38. clean water
  39. chalk to mark shadows
  40. not needed

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