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Shadow and Sundial Experiment Worksheet

Science experiments lesson 27: Shadows and a sundial · Set 936 · 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 same stick is the one thing we change. (a) False (b) True
  2. 2.True or false: turmeric powder is not needed for the shadow clock. (a) True (b) False
  3. 3.🧺 Which of these is needed for the shadow clock? (a) a sunny open place (b) turmeric powder (c) a mirror (d) a magnet
  4. 4.⚖️ 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 time of day (d) the same spot
  5. 5.🧺 Do we need a sunny open place for the shadow clock? (a) not needed (b) needed
  6. 6.🔦 Which of these is opaque? (a) clear plastic film (b) tissue paper (c) butter paper (d) a wooden board
  7. 7.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: shadow length is the one thing we change. (a) True (b) False
  8. 8.📘 Why does a shadow form? (a) light bends round it (b) an object blocks light (c) the object is cold (d) the ground is dark
  9. 9.🌍 Why does the stick’s shadow move during the day? (a) the stick grows (b) the ground slides (c) Earth keeps spinning (d) the stick walks
  10. 10.⚖️ 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
  11. 11.⚖️ 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 keep it the same (c) we change it
  12. 12.🔮 Predict: the Sun is low in the evening sky. The stick’s shadow is ___. (a) short (b) round (c) long (d) missing
  13. 13.🧺 Do we need a balloon for the shadow clock? (a) needed (b) not needed
  14. 14.🔦 Is clear glass opaque, translucent or transparent? (a) opaque (b) transparent (c) translucent
  15. 15.True or false: chalk to mark shadows is needed for the shadow clock. (a) True (b) False
  16. 16.⚖️ 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 change it (c) we keep it the same
  17. 17.🛟 While watching shadows outdoors, what must you never do? (a) wear a cap (b) sit in the shade (c) mark with chalk (d) look straight at the Sun
  18. 18.🔦 Is a steel plate opaque, translucent or transparent? (a) translucent (b) opaque (c) transparent
  19. 19.🔦 Which of these is transparent? (a) oily paper (b) tissue paper (c) frosted glass (d) clean water
  20. 20.🧺 Do we need a mirror for the shadow clock? (a) needed (b) not needed
  21. 21.🕰️ What is a sundial used for? (a) telling the time (b) making rainbows (c) measuring rain (d) weighing things
  22. 22.True or false: clean water is translucent. (a) False (b) True
  23. 23.🧺 Do we need a magnet for the shadow clock? (a) not needed (b) needed
  24. 24.🔦 Which of these is translucent? (a) a steel plate (b) clear plastic film (c) clean water (d) frosted glass
  25. 25.🔮 Predict: you move a torch closer to your hand. The shadow on the wall gets ___. (a) bigger (b) brighter (c) coloured (d) smaller
  26. 26.🧺 Which of these is not needed for the shadow clock? (a) a clock to check (b) a straight stick (c) a balloon (d) a sunny open place
  27. 27.⚖️ Fair test — how does the shadow of a stick change through the day? What do we do with “the same spot”? (a) we change it (b) we measure it (c) we keep it the same
  28. 28.True or false: a sunny open place is not needed for the shadow clock. (a) False (b) True
  29. 29.🛟 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
  30. 30.🧺 Which of these is not needed for the shadow clock? (a) a straight stick (b) a mirror (c) chalk to mark shadows (d) a clock to check
  31. 31.🔦 Is a brick opaque, translucent or transparent? (a) translucent (b) opaque (c) transparent
  32. 32.🔍 Which is the odd one out? (a) your hand (b) a wooden board (c) a steel plate (d) oily paper
  33. 33.True or false: yeast is needed for the shadow clock. (a) False (b) True
  34. 34.⚖️ 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
  35. 35.True or false: a straight stick is needed for the shadow clock. (a) True (b) False
  36. 36.🔍 Which is the odd one out? (a) a book (b) clear glass (c) a steel plate (d) a wooden board
  37. 37.🔍 Which is the odd one out? (a) clear plastic film (b) tissue paper (c) clean water (d) clear glass
  38. 38.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a sunny open place (b) a straight stick (c) yeast (d) chalk to mark shadows
  39. 39.🔦 Which of these is opaque? (a) clear plastic film (b) butter paper (c) air (d) a book
  40. 40.🧺 Do we need a clock to check for the shadow clock? (a) needed (b) not needed

Answer key

  1. False
  2. True
  3. a sunny open place
  4. the time of day
  5. needed
  6. a wooden board
  7. False
  8. an object blocks light
  9. Earth keeps spinning
  10. True
  11. we keep it the same
  12. long
  13. not needed
  14. transparent
  15. True
  16. we change it
  17. look straight at the Sun
  18. opaque
  19. clean water
  20. not needed
  21. telling the time
  22. False
  23. not needed
  24. frosted glass
  25. bigger
  26. a balloon
  27. we keep it the same
  28. False
  29. a cap or hat
  30. a mirror
  31. opaque
  32. oily paper
  33. False
  34. True
  35. True
  36. clear glass
  37. tissue paper
  38. yeast
  39. a book
  40. needed

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