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Shadow and Sundial Experiment Worksheet

Science experiments lesson 27: Shadows and a sundial · Set 305 · 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.

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  1. 1.🔦 Is a book opaque, translucent or transparent? (a) translucent (b) opaque (c) transparent
  2. 2.True or false: a steel plate is translucent. (a) True (b) False
  3. 3.🌞 When is a stick’s shadow the shortest? (a) early morning (b) late evening (c) at night (d) around noon
  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 time of day (b) the stick kept upright (c) shadow length (d) the same stick
  5. 5.🔦 Which of these is translucent? (a) a book (b) butter paper (c) clear plastic film (d) a steel plate
  6. 6.🔍 Which is the odd one out? (a) a steel plate (b) air (c) a brick (d) a book
  7. 7.🔦 Which of these is opaque? (a) a steel plate (b) frosted glass (c) air (d) tissue paper
  8. 8.⚖️ 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
  9. 9.🔍 Which is the odd one out? (a) air (b) clear glass (c) a brick (d) clean water
  10. 10.🌍 Why does the stick’s shadow move during the day? (a) the stick grows (b) the ground slides (c) the stick walks (d) Earth keeps spinning
  11. 11.⚖️ Fair test — how does the shadow of a stick change through the day? What do we do with “shadow length”? (a) we change it (b) we measure it (c) we keep it the same
  12. 12.🧺 Which of these is needed for the shadow clock? (a) turmeric powder (b) yeast (c) a balloon (d) a sunny open place
  13. 13.🛟 What should you wear for a long time in the hot sun? (a) nothing on your head (b) a woollen sweater (c) a cap or hat (d) a raincoat
  14. 14.🔍 Which is the odd one out? (a) a steel plate (b) clean water (c) a brick (d) your hand
  15. 15.⚖️ 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
  16. 16.🧺 Which of these is not needed for the shadow clock? (a) a balloon (b) chalk to mark shadows (c) a straight stick (d) a sunny open place
  17. 17.🧺 Which of these is needed for the shadow clock? (a) a straight stick (b) turmeric powder (c) a mirror (d) a balloon
  18. 18.True or false: a brick is translucent. (a) False (b) True
  19. 19.True or false: clear glass is transparent. (a) True (b) False
  20. 20.🔦 Is frosted glass opaque, translucent or transparent? (a) opaque (b) transparent (c) translucent
  21. 21.🔮 Predict: on a fully cloudy day, the sundial ___. (a) shows two times (b) does not work well (c) runs faster (d) works better
  22. 22.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a straight stick (b) a sunny open place (c) a balloon (d) a clock to check
  23. 23.📘 Why does a shadow form? (a) an object blocks light (b) light bends round it (c) the ground is dark (d) the object is cold
  24. 24.True or false: a wooden board is opaque. (a) True (b) False
  25. 25.🧺 Do we need a sunny open place for the shadow clock? (a) needed (b) not needed
  26. 26.🌅 In the morning the Sun is in the east. Which way does a shadow point? (a) up (b) west (c) north (d) east
  27. 27.True or false: tissue paper is transparent. (a) False (b) True
  28. 28.⚖️ Fair test — how does the shadow of a stick change through the day? Which of these is kept the same? (a) shadow length (b) the time of day (c) the same stick
  29. 29.🛟 While watching shadows outdoors, what must you never do? (a) wear a cap (b) sit in the shade (c) look straight at the Sun (d) mark with chalk
  30. 30.🔦 Which of these is transparent? (a) clear glass (b) tissue paper (c) a wooden board (d) oily paper
  31. 31.True or false: a book is translucent. (a) False (b) True
  32. 32.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the same spot is the one thing we change. (a) True (b) False
  33. 33.🔦 Which of these is transparent? (a) clean water (b) a brick (c) a steel plate (d) oily paper
  34. 34.True or false: your hand is translucent. (a) True (b) False
  35. 35.🔦 Is a wooden board opaque, translucent or transparent? (a) opaque (b) translucent (c) transparent
  36. 36.True or false: clear plastic film is transparent. (a) False (b) True
  37. 37.🧺 Do we need chalk to mark shadows for the shadow clock? (a) needed (b) not needed
  38. 38.🧺 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) a straight stick (d) turmeric powder
  39. 39.⚖️ Fair test — how does the shadow of a stick change through the day? Which of these is kept the same? (a) shadow length (b) the same spot (c) the time of day
  40. 40.🔍 Which is the odd one out? (a) a brick (b) a steel plate (c) a wooden board (d) frosted glass

Answer key

  1. opaque
  2. False
  3. around noon
  4. the time of day
  5. butter paper
  6. air
  7. a steel plate
  8. we change it
  9. a brick
  10. Earth keeps spinning
  11. we measure it
  12. a sunny open place
  13. a cap or hat
  14. clean water
  15. True
  16. a balloon
  17. a straight stick
  18. False
  19. True
  20. translucent
  21. does not work well
  22. a balloon
  23. an object blocks light
  24. True
  25. needed
  26. west
  27. False
  28. the same stick
  29. look straight at the Sun
  30. clear glass
  31. False
  32. False
  33. clean water
  34. False
  35. opaque
  36. True
  37. needed
  38. turmeric powder
  39. the same spot
  40. frosted glass

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