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Shadow and Sundial Experiment Worksheet

Science experiments lesson 27: Shadows and a sundial · Set 667 · 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.🛟 What should you wear for a long time in the hot sun? (a) a woollen sweater (b) nothing on your head (c) a raincoat (d) a cap or hat
  2. 2.🌞 When is a stick’s shadow the shortest? (a) late evening (b) at night (c) around noon (d) early morning
  3. 3.True or false: a straight stick is not needed for the shadow clock. (a) False (b) True
  4. 4.🧺 Which of these is not needed for the shadow clock? (a) a balloon (b) chalk to mark shadows (c) a sunny open place (d) a straight stick
  5. 5.🔍 Which is the odd one out? (a) a book (b) frosted glass (c) a brick (d) a wooden board
  6. 6.🧺 Which of these is not needed for the shadow clock? (a) a straight stick (b) a sunny open place (c) yeast (d) chalk to mark shadows
  7. 7.🔍 Which is the odd one out? (a) your hand (b) a steel plate (c) a wooden board (d) air
  8. 8.🔍 Which is the odd one out? (a) air (b) clear glass (c) clear plastic film (d) tissue paper
  9. 9.🔍 Which is the odd one out? (a) clear plastic film (b) clean water (c) butter paper (d) air
  10. 10.🌍 Why does the stick’s shadow move during the day? (a) the ground slides (b) the stick grows (c) Earth keeps spinning (d) the stick walks
  11. 11.True or false: a balloon is needed for the shadow clock. (a) True (b) False
  12. 12.🔦 Which of these is translucent? (a) oily paper (b) a steel plate (c) a wooden board (d) clean water
  13. 13.⚖️ 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) the same stick (d) the same spot
  14. 14.🛟 While watching shadows outdoors, what must you never do? (a) mark with chalk (b) look straight at the Sun (c) wear a cap (d) sit in the shade
  15. 15.🔦 Is your hand opaque, translucent or transparent? (a) opaque (b) transparent (c) translucent
  16. 16.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the stick kept upright is what we measure. (a) False (b) True
  17. 17.⚖️ 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
  18. 18.🔮 Predict: on a fully cloudy day, the sundial ___. (a) works better (b) runs faster (c) shows two times (d) does not work well
  19. 19.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a straight stick (b) a balloon (c) a sunny open place (d) a clock to check
  20. 20.⚖️ Fair test — how does the shadow of a stick change through the day? What do we do with “the same stick”? (a) we keep it the same (b) we measure it (c) we change it
  21. 21.🔮 Predict: you move a torch closer to your hand. The shadow on the wall gets ___. (a) smaller (b) coloured (c) bigger (d) brighter
  22. 22.🧺 Do we need a sunny open place for the shadow clock? (a) needed (b) not needed
  23. 23.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the same spot is kept the same. (a) True (b) False
  24. 24.🔦 Which of these is opaque? (a) a book (b) air (c) clean water (d) clear plastic film
  25. 25.🔦 Which of these is transparent? (a) butter paper (b) tissue paper (c) air (d) a book
  26. 26.🌅 In the morning the Sun is in the east. Which way does a shadow point? (a) up (b) east (c) west (d) north
  27. 27.⚖️ 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) True (b) False
  28. 28.🧺 Which of these is needed for the shadow clock? (a) yeast (b) chalk to mark shadows (c) a balloon (d) a magnet
  29. 29.🧺 Which of these is not needed for the shadow clock? (a) a sunny open place (b) a mirror (c) a straight stick (d) chalk to mark shadows
  30. 30.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a mirror (b) chalk to mark shadows (c) a straight stick (d) a clock to check
  31. 31.🔦 Is butter paper opaque, translucent or transparent? (a) translucent (b) transparent (c) opaque
  32. 32.⚖️ Fair test — how does the shadow of a stick change through the day? Which of these is kept the same? (a) the same spot (b) shadow length (c) the time of day
  33. 33.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the same stick is kept the same. (a) True (b) False
  34. 34.⚖️ 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) False (b) True
  35. 35.🧺 Which of these is needed for the shadow clock? (a) a balloon (b) a mirror (c) turmeric powder (d) a clock to check
  36. 36.📘 Why does a shadow form? (a) the ground is dark (b) an object blocks light (c) the object is cold (d) light bends round it
  37. 37.⚖️ 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
  38. 38.🔦 Is a book opaque, translucent or transparent? (a) opaque (b) translucent (c) transparent
  39. 39.🧺 Do we need yeast for the shadow clock? (a) not needed (b) needed
  40. 40.True or false: a book is opaque. (a) False (b) True

Answer key

  1. a cap or hat
  2. around noon
  3. False
  4. a balloon
  5. frosted glass
  6. yeast
  7. air
  8. tissue paper
  9. butter paper
  10. Earth keeps spinning
  11. False
  12. oily paper
  13. the time of day
  14. look straight at the Sun
  15. opaque
  16. False
  17. False
  18. does not work well
  19. a balloon
  20. we keep it the same
  21. bigger
  22. needed
  23. True
  24. a book
  25. air
  26. west
  27. False
  28. chalk to mark shadows
  29. a mirror
  30. a mirror
  31. translucent
  32. the same spot
  33. True
  34. True
  35. a clock to check
  36. an object blocks light
  37. we change it
  38. opaque
  39. not needed
  40. True

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