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Shadow and Sundial Experiment Worksheet

Science experiments lesson 27: Shadows and a sundial · Set 191 · 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) chalk to mark shadows (c) yeast (d) a sunny open place
  2. 2.True or false: a balloon is not needed for the shadow clock. (a) True (b) False
  3. 3.🔮 Predict: on a fully cloudy day, the sundial ___. (a) works better (b) does not work well (c) runs faster (d) shows two times
  4. 4.🔍 Which is the odd one out? (a) a book (b) a steel plate (c) a brick (d) frosted glass
  5. 5.🔦 Which of these is translucent? (a) a brick (b) clear glass (c) your hand (d) tissue paper
  6. 6.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a straight stick (b) chalk to mark shadows (c) turmeric powder (d) a sunny open place
  7. 7.🔍 Which is the odd one out? (a) tissue paper (b) butter paper (c) clean water (d) oily paper
  8. 8.🛟 What should you wear for a long time in the hot sun? (a) a raincoat (b) a woollen sweater (c) a cap or hat (d) nothing on your head
  9. 9.🔦 Is air opaque, translucent or transparent? (a) translucent (b) transparent (c) opaque
  10. 10.True or false: a clock to check is not needed for the shadow clock. (a) True (b) False
  11. 11.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the same spot is what we measure. (a) True (b) False
  12. 12.🕰️ What is a sundial used for? (a) measuring rain (b) weighing things (c) making rainbows (d) telling the time
  13. 13.🔦 Which of these is opaque? (a) tissue paper (b) a wooden board (c) clear plastic film (d) frosted glass
  14. 14.🧺 Which of these is not needed for the shadow clock? (a) a sunny open place (b) yeast (c) a clock to check (d) chalk to mark shadows
  15. 15.🧺 Which of these is needed for the shadow clock? (a) yeast (b) a battery cell (c) a straight stick (d) a magnet
  16. 16.🌞 When is a stick’s shadow the shortest? (a) at night (b) late evening (c) around noon (d) early morning
  17. 17.🛟 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
  18. 18.⚖️ 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
  19. 19.🧺 Do we need a straight stick for the shadow clock? (a) not needed (b) needed
  20. 20.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a mirror (b) chalk to mark shadows (c) a clock to check (d) a sunny open place
  21. 21.🧺 Do we need a mirror for the shadow clock? (a) needed (b) not needed
  22. 22.🔦 Is a steel plate opaque, translucent or transparent? (a) transparent (b) opaque (c) translucent
  23. 23.🧺 Which of these is needed for the shadow clock? (a) a magnet (b) chalk to mark shadows (c) turmeric powder (d) a balloon
  24. 24.True or false: a straight stick is not needed for the shadow clock. (a) False (b) True
  25. 25.True or false: a steel plate is transparent. (a) False (b) True
  26. 26.True or false: chalk to mark shadows is needed for the shadow clock. (a) False (b) True
  27. 27.True or false: tissue paper is opaque. (a) True (b) False
  28. 28.🧺 Do we need chalk to mark shadows for the shadow clock? (a) not needed (b) needed
  29. 29.🔍 Which is the odd one out? (a) clear glass (b) oily paper (c) tissue paper (d) butter paper
  30. 30.🔦 Is clear plastic film opaque, translucent or transparent? (a) translucent (b) opaque (c) transparent
  31. 31.🔦 Which of these is transparent? (a) clear glass (b) frosted glass (c) oily paper (d) butter paper
  32. 32.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a magnet (b) a sunny open place (c) a straight stick (d) chalk to mark shadows
  33. 33.True or false: a sunny open place is needed for the shadow clock. (a) True (b) False
  34. 34.🧺 Do we need a sunny open place for the shadow clock? (a) not needed (b) needed
  35. 35.True or false: a sunny open place 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 battery cell (b) chalk to mark shadows (c) a sunny open place (d) a clock to check
  37. 37.True or false: a mirror is needed for the shadow clock. (a) True (b) False
  38. 38.True or false: oily paper is translucent. (a) False (b) True
  39. 39.📘 Why does a shadow form? (a) light bends round it (b) the object is cold (c) the ground is dark (d) an object blocks light
  40. 40.🧺 Which of these is not needed for the shadow clock? (a) a straight stick (b) a balloon (c) a clock to check (d) a sunny open place

Answer key

  1. yeast
  2. True
  3. does not work well
  4. frosted glass
  5. tissue paper
  6. turmeric powder
  7. clean water
  8. a cap or hat
  9. transparent
  10. False
  11. False
  12. telling the time
  13. a wooden board
  14. yeast
  15. a straight stick
  16. around noon
  17. look straight at the Sun
  18. True
  19. needed
  20. a mirror
  21. not needed
  22. opaque
  23. chalk to mark shadows
  24. False
  25. False
  26. True
  27. False
  28. needed
  29. clear glass
  30. transparent
  31. clear glass
  32. a magnet
  33. True
  34. needed
  35. False
  36. a battery cell
  37. False
  38. True
  39. an object blocks light
  40. a balloon

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