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Shadow and Sundial Experiment Worksheet

Science experiments lesson 27: Shadows and a sundial · Set 702 · 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 of these is translucent? (a) frosted glass (b) your hand (c) clear plastic film (d) a steel plate
  2. 2.⚖️ 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 stick kept upright (c) shadow length (d) the same stick
  3. 3.True or false: a steel plate is opaque. (a) False (b) True
  4. 4.⚖️ 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 time of day (c) the same spot (d) shadow length
  5. 5.🧺 Which of these is needed for the shadow clock? (a) turmeric powder (b) yeast (c) a mirror (d) a clock to check
  6. 6.True or false: yeast is not needed for the shadow clock. (a) False (b) True
  7. 7.True or false: clear glass is transparent. (a) True (b) False
  8. 8.🔮 Predict: you move a torch closer to your hand. The shadow on the wall gets ___. (a) smaller (b) brighter (c) bigger (d) coloured
  9. 9.True or false: a straight stick is not needed for the shadow clock. (a) False (b) True
  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.🧺 Do we need a sunny open place 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) a balloon (b) a sunny open place (c) chalk to mark shadows (d) a straight stick
  13. 13.🌅 In the morning the Sun is in the east. Which way does a shadow point? (a) west (b) north (c) up (d) east
  14. 14.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a sunny open place (b) turmeric powder (c) a clock to check (d) chalk to mark shadows
  15. 15.🔍 Which is the odd one out? (a) your hand (b) a book (c) a wooden board (d) clear glass
  16. 16.📘 Why does a shadow form? (a) light bends round it (b) the object is cold (c) an object blocks light (d) the ground is dark
  17. 17.⚖️ Fair test — how does the shadow of a stick change through the day? What do we do with “the stick kept upright”? (a) we change it (b) we measure it (c) we keep it the same
  18. 18.🧺 Do we need turmeric powder for the shadow clock? (a) needed (b) not needed
  19. 19.🔦 Which of these is transparent? (a) a wooden board (b) air (c) butter paper (d) a brick
  20. 20.🔍 Which is the odd one out? (a) tissue paper (b) oily paper (c) a steel plate (d) frosted glass
  21. 21.🧺 Do we need a mirror for the shadow clock? (a) needed (b) not needed
  22. 22.⚖️ 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) False (b) True
  23. 23.🔦 Is your hand opaque, translucent or transparent? (a) opaque (b) translucent (c) transparent
  24. 24.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the time of day is what we measure. (a) False (b) True
  25. 25.🔦 Which of these is opaque? (a) oily paper (b) air (c) butter paper (d) a book
  26. 26.🔦 Which of these is transparent? (a) tissue paper (b) clear plastic film (c) a steel plate (d) oily paper
  27. 27.🔦 Is a wooden board opaque, translucent or transparent? (a) transparent (b) opaque (c) translucent
  28. 28.🧺 Which of these is not needed for the shadow clock? (a) chalk to mark shadows (b) a clock to check (c) a straight stick (d) a balloon
  29. 29.True or false: butter paper is opaque. (a) True (b) False
  30. 30.True or false: turmeric powder is not needed for the shadow clock. (a) True (b) False
  31. 31.🧺 Which of these is not needed for the shadow clock? (a) a straight stick (b) chalk to mark shadows (c) turmeric powder (d) a clock to check
  32. 32.🛟 What should you wear for a long time in the hot sun? (a) a raincoat (b) nothing on your head (c) a cap or hat (d) a woollen sweater
  33. 33.🔍 Which is the odd one out? (a) a book (b) a wooden board (c) a steel plate (d) clear plastic film
  34. 34.🧺 Do we need a magnet for the shadow clock? (a) needed (b) not needed
  35. 35.True or false: a magnet is not needed for the shadow clock. (a) False (b) True
  36. 36.⚖️ 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) shadow length (c) the stick kept upright
  37. 37.🔦 Is a brick opaque, translucent or transparent? (a) transparent (b) translucent (c) opaque
  38. 38.🌞 When is a stick’s shadow the shortest? (a) at night (b) early morning (c) late evening (d) around noon
  39. 39.🔦 Which of these is opaque? (a) air (b) oily paper (c) a steel plate (d) clean water
  40. 40.⚖️ Fair test — how does the shadow of a stick change through the day? What do we do with “shadow length”? (a) we measure it (b) we keep it the same (c) we change it

Answer key

  1. frosted glass
  2. the time of day
  3. True
  4. shadow length
  5. a clock to check
  6. True
  7. True
  8. bigger
  9. False
  10. look straight at the Sun
  11. needed
  12. a balloon
  13. west
  14. turmeric powder
  15. clear glass
  16. an object blocks light
  17. we keep it the same
  18. not needed
  19. air
  20. a steel plate
  21. not needed
  22. False
  23. opaque
  24. False
  25. a book
  26. clear plastic film
  27. opaque
  28. a balloon
  29. False
  30. True
  31. turmeric powder
  32. a cap or hat
  33. clear plastic film
  34. not needed
  35. True
  36. the stick kept upright
  37. opaque
  38. around noon
  39. a steel plate
  40. we measure it

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