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Shadow and Sundial Experiment Worksheet

Science experiments lesson 27: Shadows and a sundial · Set 690 · 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) a cap or hat (c) a raincoat (d) nothing on your head
  2. 2.🧺 Do we need a mirror for the shadow clock? (a) needed (b) not needed
  3. 3.🧺 Do we need yeast for the shadow clock? (a) needed (b) not needed
  4. 4.🌞 When is a stick’s shadow the shortest? (a) at night (b) early morning (c) late evening (d) around noon
  5. 5.⚖️ 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
  6. 6.🧺 Do we need a clock to check for the shadow clock? (a) needed (b) not needed
  7. 7.⚖️ Fair test — how does the shadow of a stick change through the day? Which of these is what we measure? (a) the time of day (b) the same stick (c) the stick kept upright (d) shadow length
  8. 8.🧺 Which of these is needed for the shadow clock? (a) a balloon (b) a clock to check (c) a battery cell (d) a magnet
  9. 9.🔮 Predict: the Sun is low in the evening sky. The stick’s shadow is ___. (a) missing (b) round (c) long (d) short
  10. 10.True or false: a straight stick is not needed for the shadow clock. (a) True (b) False
  11. 11.🧺 Which of these is needed for the shadow clock? (a) a balloon (b) a magnet (c) a straight stick (d) a battery cell
  12. 12.🛟 While watching shadows outdoors, what must you never do? (a) look straight at the Sun (b) mark with chalk (c) wear a cap (d) sit in the shade
  13. 13.🧺 Which of these is needed for the shadow clock? (a) a magnet (b) chalk to mark shadows (c) a mirror (d) a balloon
  14. 14.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a sunny open place (b) a balloon (c) a clock to check (d) chalk to mark shadows
  15. 15.⚖️ Fair test — how does the shadow of a stick change through the day? Which of these is kept the same? (a) the stick kept upright (b) the time of day (c) shadow length
  16. 16.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a battery cell (b) a straight stick (c) chalk to mark shadows (d) a sunny open place
  17. 17.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) yeast (b) a clock to check (c) a sunny open place (d) chalk to mark shadows
  18. 18.True or false: a straight stick is needed for the shadow clock. (a) True (b) False
  19. 19.🕰️ What is a sundial used for? (a) weighing things (b) making rainbows (c) telling the time (d) measuring rain
  20. 20.🌅 In the morning the Sun is in the east. Which way does a shadow point? (a) east (b) north (c) up (d) west
  21. 21.⚖️ 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
  22. 22.True or false: a wooden board is translucent. (a) True (b) False
  23. 23.🔦 Is a steel plate opaque, translucent or transparent? (a) translucent (b) transparent (c) opaque
  24. 24.🧺 Do we need a battery cell for the shadow clock? (a) needed (b) not needed
  25. 25.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a clock to check (b) a sunny open place (c) chalk to mark shadows (d) turmeric powder
  26. 26.True or false: chalk to mark shadows is needed for the shadow clock. (a) True (b) False
  27. 27.🔦 Is air opaque, translucent or transparent? (a) transparent (b) opaque (c) translucent
  28. 28.🧺 Which of these is not needed for the shadow clock? (a) a balloon (b) a clock to check (c) a sunny open place (d) a straight stick
  29. 29.True or false: oily paper is transparent. (a) True (b) False
  30. 30.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) chalk to mark shadows (b) a sunny open place (c) a straight stick (d) a mirror
  31. 31.🔮 Predict: you move a torch closer to your hand. The shadow on the wall gets ___. (a) bigger (b) brighter (c) coloured (d) smaller
  32. 32.True or false: a sunny open place is not needed for the shadow clock. (a) False (b) True
  33. 33.🔍 Which is the odd one out? (a) clean water (b) clear glass (c) air (d) your hand
  34. 34.True or false: a battery cell is needed for the shadow clock. (a) False (b) True
  35. 35.True or false: yeast 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? What do we do with “the time of day”? (a) we measure it (b) we change it (c) we keep it the same
  37. 37.⚖️ 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
  38. 38.True or false: tissue paper is transparent. (a) True (b) False
  39. 39.📘 Why does a shadow form? (a) the object is cold (b) light bends round it (c) the ground is dark (d) an object blocks light
  40. 40.🧺 Do we need a sunny open place for the shadow clock? (a) not needed (b) needed

Answer key

  1. a cap or hat
  2. not needed
  3. not needed
  4. around noon
  5. True
  6. needed
  7. shadow length
  8. a clock to check
  9. long
  10. False
  11. a straight stick
  12. look straight at the Sun
  13. chalk to mark shadows
  14. a balloon
  15. the stick kept upright
  16. a battery cell
  17. yeast
  18. True
  19. telling the time
  20. west
  21. False
  22. False
  23. opaque
  24. not needed
  25. turmeric powder
  26. True
  27. transparent
  28. a balloon
  29. False
  30. a mirror
  31. bigger
  32. False
  33. your hand
  34. False
  35. True
  36. we change it
  37. False
  38. False
  39. an object blocks light
  40. needed

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