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Shadow and Sundial Experiment Worksheet

Science experiments lesson 27: Shadows and a sundial · Set 267 · 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.True or false: a book is opaque. (a) False (b) True
  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 same stick (b) the stick kept upright (c) the same spot (d) the time of day
  3. 3.True or false: a straight stick is needed for the shadow clock. (a) False (b) True
  4. 4.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the time of day is kept the same. (a) True (b) False
  5. 5.🛟 While watching shadows outdoors, what must you never do? (a) mark with chalk (b) wear a cap (c) look straight at the Sun (d) sit in the shade
  6. 6.🌞 When is a stick’s shadow the shortest? (a) at night (b) late evening (c) around noon (d) early morning
  7. 7.🧺 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) a mirror (d) a straight stick
  8. 8.🧺 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 clock to check (d) a magnet
  9. 9.🔍 Which is the odd one out? (a) clear glass (b) clear plastic film (c) clean water (d) a brick
  10. 10.True or false: butter paper is translucent. (a) False (b) True
  11. 11.🔦 Is oily paper opaque, translucent or transparent? (a) translucent (b) transparent (c) opaque
  12. 12.🔦 Which of these is transparent? (a) clean water (b) tissue paper (c) your hand (d) a steel plate
  13. 13.🔮 Predict: you move a torch closer to your hand. The shadow on the wall gets ___. (a) coloured (b) brighter (c) smaller (d) bigger
  14. 14.🧺 Which of these is needed for the shadow clock? (a) yeast (b) a magnet (c) a battery cell (d) a sunny open place
  15. 15.True or false: clear plastic film is transparent. (a) False (b) True
  16. 16.True or false: a book is translucent. (a) False (b) True
  17. 17.🧺 Which of these is needed for the shadow clock? (a) a battery cell (b) chalk to mark shadows (c) a mirror (d) turmeric powder
  18. 18.⚖️ 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
  19. 19.🧺 Do we need a straight stick for the shadow clock? (a) not needed (b) needed
  20. 20.⚖️ 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
  21. 21.🧺 Do we need a sunny open place for the shadow clock? (a) needed (b) not needed
  22. 22.🔮 Predict: the Sun is low in the evening sky. The stick’s shadow is ___. (a) long (b) round (c) short (d) missing
  23. 23.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a sunny open place (b) turmeric powder (c) a straight stick (d) a clock to check
  24. 24.True or false: a balloon is not needed for the shadow clock. (a) False (b) True
  25. 25.🛟 What should you wear for a long time in the hot sun? (a) a raincoat (b) a woollen sweater (c) nothing on your head (d) a cap or hat
  26. 26.📘 Why does a shadow form? (a) light bends round it (b) an object blocks light (c) the ground is dark (d) the object is cold
  27. 27.True or false: tissue paper is translucent. (a) True (b) False
  28. 28.True or false: turmeric powder is not needed for the shadow clock. (a) False (b) True
  29. 29.🧺 Which of these is needed for the shadow clock? (a) a magnet (b) a balloon (c) a straight stick (d) yeast
  30. 30.🧺 Which of these is not needed for the shadow clock? (a) a straight stick (b) a sunny open place (c) turmeric powder (d) chalk to mark shadows
  31. 31.True or false: a magnet is needed for the shadow clock. (a) False (b) True
  32. 32.🔦 Which of these is transparent? (a) oily paper (b) clear plastic film (c) frosted glass (d) a brick
  33. 33.⚖️ 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
  34. 34.🌍 Why does the stick’s shadow move during the day? (a) Earth keeps spinning (b) the stick grows (c) the stick walks (d) the ground slides
  35. 35.🔦 Which of these is opaque? (a) butter paper (b) clear plastic film (c) clear glass (d) a book
  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 keep it the same (b) we measure it (c) we change it
  37. 37.🔦 Is a book opaque, translucent or transparent? (a) opaque (b) translucent (c) transparent
  38. 38.🌅 In the morning the Sun is in the east. Which way does a shadow point? (a) west (b) east (c) north (d) up
  39. 39.🧺 Do we need a mirror for the shadow clock? (a) needed (b) not needed
  40. 40.🧺 Do we need a magnet for the shadow clock? (a) not needed (b) needed

Answer key

  1. True
  2. the time of day
  3. True
  4. False
  5. look straight at the Sun
  6. around noon
  7. a mirror
  8. a magnet
  9. a brick
  10. True
  11. translucent
  12. clean water
  13. bigger
  14. a sunny open place
  15. True
  16. False
  17. chalk to mark shadows
  18. we keep it the same
  19. needed
  20. False
  21. needed
  22. long
  23. turmeric powder
  24. True
  25. a cap or hat
  26. an object blocks light
  27. True
  28. True
  29. a straight stick
  30. turmeric powder
  31. False
  32. clear plastic film
  33. False
  34. Earth keeps spinning
  35. a book
  36. we change it
  37. opaque
  38. west
  39. not needed
  40. not needed

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