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Shadow and Sundial Experiment Worksheet

Science experiments lesson 27: Shadows and a sundial · Set 771 · 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? True or false: the time of day is kept the same. (a) True (b) False
  2. 2.🌅 In the morning the Sun is in the east. Which way does a shadow point? (a) west (b) north (c) up (d) east
  3. 3.🔍 Which is the odd one out? (a) clean water (b) butter paper (c) air (d) clear glass
  4. 4.🛟 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
  5. 5.🛟 What should you wear for a long time in the hot sun? (a) nothing on your head (b) a raincoat (c) a woollen sweater (d) a cap or hat
  6. 6.🔦 Which of these is opaque? (a) tissue paper (b) frosted glass (c) a steel plate (d) oily paper
  7. 7.🧺 Do we need a sunny open place for the shadow clock? (a) needed (b) not needed
  8. 8.🔍 Which is the odd one out? (a) clean water (b) tissue paper (c) air (d) clear glass
  9. 9.🔦 Which of these is translucent? (a) a book (b) a brick (c) butter paper (d) clear plastic film
  10. 10.True or false: a sunny open place is not needed for the shadow clock. (a) False (b) True
  11. 11.🧺 Which of these is needed for the shadow clock? (a) a balloon (b) yeast (c) a sunny open place (d) a battery cell
  12. 12.🧺 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 balloon
  13. 13.🧺 Do we need a straight stick for the shadow clock? (a) needed (b) not needed
  14. 14.🧺 Do we need a clock to check for the shadow clock? (a) needed (b) not needed
  15. 15.🔍 Which is the odd one out? (a) a book (b) tissue paper (c) frosted glass (d) butter paper
  16. 16.🔮 Predict: you move a torch closer to your hand. The shadow on the wall gets ___. (a) bigger (b) coloured (c) smaller (d) brighter
  17. 17.True or false: a balloon is needed for the shadow clock. (a) True (b) False
  18. 18.⚖️ Fair test — how does the shadow of a stick change through the day? Which of these is kept the same? (a) the same stick (b) shadow length (c) the time of day
  19. 19.🔦 Is butter paper opaque, translucent or transparent? (a) opaque (b) translucent (c) transparent
  20. 20.🧺 Which of these is needed for the shadow clock? (a) a battery cell (b) turmeric powder (c) chalk to mark shadows (d) a balloon
  21. 21.🌞 When is a stick’s shadow the shortest? (a) around noon (b) early morning (c) late evening (d) at night
  22. 22.🔦 Which of these is opaque? (a) air (b) butter paper (c) frosted glass (d) a book
  23. 23.⚖️ 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) shadow length (c) the same spot (d) the time of day
  24. 24.🔦 Is frosted glass opaque, translucent or transparent? (a) opaque (b) translucent (c) transparent
  25. 25.🔮 Predict: on a fully cloudy day, the sundial ___. (a) runs faster (b) works better (c) does not work well (d) shows two times
  26. 26.True or false: a straight stick is not needed for the shadow clock. (a) True (b) False
  27. 27.🧺 Which of these is needed for the shadow clock? (a) a balloon (b) a straight stick (c) turmeric powder (d) a battery cell
  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.🕰️ What is a sundial used for? (a) making rainbows (b) weighing things (c) measuring rain (d) telling the time
  30. 30.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a clock to check (b) a straight stick (c) a sunny open place (d) turmeric powder
  31. 31.True or false: a mirror is needed for the shadow clock. (a) False (b) True
  32. 32.True or false: chalk to mark shadows is not needed for the shadow clock. (a) True (b) False
  33. 33.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a sunny open place (b) chalk to mark shadows (c) a magnet (d) a straight stick
  34. 34.True or false: a mirror is not needed for the shadow clock. (a) False (b) True
  35. 35.⚖️ Fair test — how does the shadow of a stick change through the day? What do we do with “the time of day”? (a) we keep it the same (b) we change it (c) we measure it
  36. 36.True or false: yeast is not needed for the shadow clock. (a) False (b) True
  37. 37.🧺 Do we need chalk to mark shadows for the shadow clock? (a) not needed (b) needed
  38. 38.True or false: a magnet is needed for the shadow clock. (a) True (b) False
  39. 39.🔦 Is clean water opaque, translucent or transparent? (a) transparent (b) opaque (c) translucent
  40. 40.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a sunny open place (b) a straight stick (c) chalk to mark shadows (d) yeast

Answer key

  1. False
  2. west
  3. butter paper
  4. look straight at the Sun
  5. a cap or hat
  6. a steel plate
  7. needed
  8. tissue paper
  9. butter paper
  10. False
  11. a sunny open place
  12. a balloon
  13. needed
  14. needed
  15. a book
  16. bigger
  17. False
  18. the same stick
  19. translucent
  20. chalk to mark shadows
  21. around noon
  22. a book
  23. shadow length
  24. translucent
  25. does not work well
  26. False
  27. a straight stick
  28. we keep it the same
  29. telling the time
  30. turmeric powder
  31. False
  32. False
  33. a magnet
  34. True
  35. we change it
  36. True
  37. needed
  38. False
  39. transparent
  40. yeast

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