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Shadow and Sundial Experiment Worksheet

Science experiments lesson 27: Shadows and a sundial · Set 317 · 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.🔍 Which is the odd one out? (a) a wooden board (b) your hand (c) tissue paper (d) a steel plate
  2. 2.🧺 Which of these is needed for the shadow clock? (a) a balloon (b) a battery cell (c) turmeric powder (d) a clock to check
  3. 3.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a balloon (b) chalk to mark shadows (c) a sunny open place (d) a straight stick
  4. 4.🧺 Which of these is needed for the shadow clock? (a) turmeric powder (b) yeast (c) a straight stick (d) a balloon
  5. 5.True or false: clear plastic film is transparent. (a) False (b) True
  6. 6.⚖️ 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
  7. 7.🕰️ What is a sundial used for? (a) measuring rain (b) telling the time (c) making rainbows (d) weighing things
  8. 8.🔦 Is clear plastic film opaque, translucent or transparent? (a) opaque (b) transparent (c) translucent
  9. 9.🔮 Predict: the Sun is low in the evening sky. The stick’s shadow is ___. (a) missing (b) long (c) short (d) round
  10. 10.🔍 Which is the odd one out? (a) clean water (b) clear glass (c) air (d) frosted glass
  11. 11.🧺 Do we need a straight stick for the shadow clock? (a) not needed (b) needed
  12. 12.🧺 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 straight stick
  13. 13.🧺 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 battery cell (d) a straight stick
  14. 14.⚖️ Fair test — how does the shadow of a stick change through the day? Which of these is the one thing we change? (a) the time of day (b) the same spot (c) shadow length (d) the stick kept upright
  15. 15.🧺 Which of these is not needed for the shadow clock? (a) chalk to mark shadows (b) turmeric powder (c) a straight stick (d) a clock to check
  16. 16.🧺 Do we need turmeric powder for the shadow clock? (a) needed (b) not needed
  17. 17.True or false: air is opaque. (a) False (b) True
  18. 18.🔦 Is butter paper opaque, translucent or transparent? (a) translucent (b) opaque (c) transparent
  19. 19.🔦 Is a wooden board opaque, translucent or transparent? (a) transparent (b) opaque (c) translucent
  20. 20.🧺 Do we need chalk to mark shadows for the shadow clock? (a) not needed (b) needed
  21. 21.⚖️ 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
  22. 22.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) chalk to mark shadows (b) a clock to check (c) yeast (d) a straight stick
  23. 23.🔦 Is oily paper opaque, translucent or transparent? (a) translucent (b) transparent (c) opaque
  24. 24.🔍 Which is the odd one out? (a) tissue paper (b) a wooden board (c) oily paper (d) frosted glass
  25. 25.🛟 While watching shadows outdoors, what must you never do? (a) look straight at the Sun (b) wear a cap (c) mark with chalk (d) sit in the shade
  26. 26.True or false: oily paper is translucent. (a) True (b) False
  27. 27.⚖️ 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) False (b) True
  28. 28.⚖️ 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
  29. 29.🧺 Do we need a mirror for the shadow clock? (a) needed (b) not needed
  30. 30.🔮 Predict: on a fully cloudy day, the sundial ___. (a) shows two times (b) runs faster (c) works better (d) does not work well
  31. 31.🔍 Which is the odd one out? (a) clear plastic film (b) a steel plate (c) air (d) clean water
  32. 32.True or false: tissue paper is transparent. (a) True (b) False
  33. 33.True or false: yeast is not needed for the shadow clock. (a) False (b) True
  34. 34.True or false: a straight stick is needed for the shadow clock. (a) False (b) True
  35. 35.True or false: turmeric powder is needed for the shadow clock. (a) False (b) True
  36. 36.🔍 Which is the odd one out? (a) oily paper (b) butter paper (c) tissue paper (d) clean water
  37. 37.🛟 What should you wear for a long time in the hot sun? (a) a woollen sweater (b) a raincoat (c) nothing on your head (d) a cap or hat
  38. 38.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: shadow length is what we measure. (a) False (b) True
  39. 39.📘 Why does a shadow form? (a) the ground is dark (b) light bends round it (c) the object is cold (d) an object blocks light
  40. 40.True or false: a wooden board is opaque. (a) False (b) True

Answer key

  1. tissue paper
  2. a clock to check
  3. a balloon
  4. a straight stick
  5. True
  6. we keep it the same
  7. telling the time
  8. transparent
  9. long
  10. frosted glass
  11. needed
  12. turmeric powder
  13. a battery cell
  14. the time of day
  15. turmeric powder
  16. not needed
  17. False
  18. translucent
  19. opaque
  20. needed
  21. True
  22. yeast
  23. translucent
  24. a wooden board
  25. look straight at the Sun
  26. True
  27. False
  28. we measure it
  29. not needed
  30. does not work well
  31. a steel plate
  32. False
  33. True
  34. True
  35. False
  36. clean water
  37. a cap or hat
  38. True
  39. an object blocks light
  40. True

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