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Shadow and Sundial Experiment Worksheet

Science experiments lesson 27: Shadows and a sundial · Set 475 · 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.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) turmeric powder (b) chalk to mark shadows (c) a clock to check (d) a sunny open place
  2. 2.True or false: chalk to mark shadows is not needed for the shadow clock. (a) False (b) True
  3. 3.True or false: a steel plate is transparent. (a) False (b) True
  4. 4.🔦 Is clear plastic film opaque, translucent or transparent? (a) opaque (b) translucent (c) transparent
  5. 5.🔦 Is clear glass opaque, translucent or transparent? (a) transparent (b) opaque (c) translucent
  6. 6.🔍 Which is the odd one out? (a) clear plastic film (b) oily paper (c) tissue paper (d) butter paper
  7. 7.🌅 In the morning the Sun is in the east. Which way does a shadow point? (a) north (b) up (c) east (d) west
  8. 8.🧺 Do we need a balloon for the shadow clock? (a) not needed (b) needed
  9. 9.True or false: a book is opaque. (a) False (b) True
  10. 10.🧺 Which of these is needed for the shadow clock? (a) a battery cell (b) a magnet (c) a straight stick (d) yeast
  11. 11.🧺 Do we need a sunny open place for the shadow clock? (a) not needed (b) needed
  12. 12.🔮 Predict: the Sun is low in the evening sky. The stick’s shadow is ___. (a) round (b) long (c) short (d) missing
  13. 13.🧺 Which of these is not needed for the shadow clock? (a) a clock to check (b) a balloon (c) chalk to mark shadows (d) a sunny open place
  14. 14.🛟 While watching shadows outdoors, what must you never do? (a) mark with chalk (b) sit in the shade (c) look straight at the Sun (d) wear a cap
  15. 15.🔦 Is a wooden board opaque, translucent or transparent? (a) translucent (b) opaque (c) transparent
  16. 16.🧺 Which of these is needed for the shadow clock? (a) yeast (b) a balloon (c) a clock to check (d) a mirror
  17. 17.🛟 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
  18. 18.True or false: a sunny open place is not needed for the shadow clock. (a) True (b) False
  19. 19.⚖️ 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) the same stick (c) shadow length
  20. 20.🔦 Which of these is translucent? (a) frosted glass (b) clear glass (c) a steel plate (d) a wooden board
  21. 21.🧺 Do we need yeast for the shadow clock? (a) needed (b) not needed
  22. 22.True or false: a book is transparent. (a) True (b) False
  23. 23.⚖️ 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
  24. 24.📘 Why does a shadow form? (a) the object is cold (b) an object blocks light (c) light bends round it (d) the ground is dark
  25. 25.⚖️ 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) the same spot (c) the time of day (d) the stick kept upright
  26. 26.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) yeast (b) chalk to mark shadows (c) a straight stick (d) a sunny open place
  27. 27.🧺 Do we need chalk to mark shadows for the shadow clock? (a) not needed (b) needed
  28. 28.⚖️ 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
  29. 29.🌞 When is a stick’s shadow the shortest? (a) late evening (b) around noon (c) at night (d) early morning
  30. 30.True or false: your hand is translucent. (a) False (b) True
  31. 31.⚖️ 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
  32. 32.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) chalk to mark shadows (b) a straight stick (c) a clock to check (d) a mirror
  33. 33.🧺 Which of these is not needed for the shadow clock? (a) a magnet (b) a straight stick (c) chalk to mark shadows (d) a sunny open place
  34. 34.🧺 Do we need a straight stick for the shadow clock? (a) not needed (b) needed
  35. 35.🧺 Do we need a battery cell for the shadow clock? (a) not needed (b) needed
  36. 36.True or false: turmeric powder is needed for the shadow clock. (a) False (b) True
  37. 37.True or false: clean water is translucent. (a) True (b) False
  38. 38.🧺 Do we need a clock to check for the shadow clock? (a) not needed (b) needed
  39. 39.⚖️ 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
  40. 40.🔮 Predict: you move a torch closer to your hand. The shadow on the wall gets ___. (a) coloured (b) brighter (c) smaller (d) bigger

Answer key

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

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