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Shadow and Sundial Experiment Worksheet

Science experiments lesson 27: Shadows and a sundial · Set 694 · 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.🧺 Do we need a magnet for the shadow clock? (a) not needed (b) needed
  2. 2.🔦 Which of these is opaque? (a) clear glass (b) tissue paper (c) a book (d) butter paper
  3. 3.True or false: chalk to mark shadows is not needed for the shadow clock. (a) False (b) True
  4. 4.🔍 Which is the odd one out? (a) tissue paper (b) air (c) clear plastic film (d) clean water
  5. 5.True or false: a mirror is needed for the shadow clock. (a) True (b) False
  6. 6.🔦 Which of these is transparent? (a) butter paper (b) tissue paper (c) clear glass (d) your hand
  7. 7.True or false: a mirror is not needed for the shadow clock. (a) True (b) False
  8. 8.🔦 Is butter paper opaque, translucent or transparent? (a) translucent (b) opaque (c) transparent
  9. 9.True or false: frosted glass is transparent. (a) False (b) True
  10. 10.🌞 When is a stick’s shadow the shortest? (a) early morning (b) late evening (c) at night (d) around noon
  11. 11.🧺 Which of these is not needed for the shadow clock? (a) a sunny open place (b) a balloon (c) a clock to check (d) a straight stick
  12. 12.🔦 Which of these is translucent? (a) a brick (b) your hand (c) frosted glass (d) clean water
  13. 13.🛟 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
  14. 14.🔮 Predict: on a fully cloudy day, the sundial ___. (a) shows two times (b) works better (c) does not work well (d) runs faster
  15. 15.🔦 Is oily paper opaque, translucent or transparent? (a) transparent (b) opaque (c) translucent
  16. 16.🔍 Which is the odd one out? (a) tissue paper (b) frosted glass (c) oily paper (d) clear glass
  17. 17.🔦 Which of these is translucent? (a) a book (b) a wooden board (c) a brick (d) butter paper
  18. 18.🔮 Predict: the Sun is low in the evening sky. The stick’s shadow is ___. (a) short (b) round (c) missing (d) long
  19. 19.🔦 Is your hand opaque, translucent or transparent? (a) transparent (b) translucent (c) opaque
  20. 20.🛟 What should you wear for a long time in the hot sun? (a) a cap or hat (b) nothing on your head (c) a raincoat (d) a woollen sweater
  21. 21.🔦 Is clean water opaque, translucent or transparent? (a) translucent (b) opaque (c) transparent
  22. 22.True or false: a straight stick is not needed for the shadow clock. (a) False (b) True
  23. 23.⚖️ 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
  24. 24.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a magnet (b) a straight stick (c) a sunny open place (d) a clock to check
  25. 25.🧺 Which of these is not needed for the shadow clock? (a) a sunny open place (b) a clock to check (c) a straight stick (d) a magnet
  26. 26.🧺 Do we need chalk to mark shadows for the shadow clock? (a) needed (b) not needed
  27. 27.⚖️ 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
  28. 28.🔍 Which is the odd one out? (a) a steel plate (b) butter paper (c) your hand (d) a book
  29. 29.🔮 Predict: you move a torch closer to your hand. The shadow on the wall gets ___. (a) brighter (b) smaller (c) coloured (d) bigger
  30. 30.🌅 In the morning the Sun is in the east. Which way does a shadow point? (a) east (b) north (c) up (d) west
  31. 31.True or false: clean water is transparent. (a) True (b) False
  32. 32.⚖️ Fair test — how does the shadow of a stick change through the day? What do we do with “shadow length”? (a) we measure it (b) we change it (c) we keep it the same
  33. 33.True or false: a book is translucent. (a) False (b) True
  34. 34.🧺 Which of these is needed for the shadow clock? (a) yeast (b) a magnet (c) a mirror (d) a sunny open place
  35. 35.🧺 Which of these is not needed for the shadow clock? (a) yeast (b) a sunny open place (c) a clock to check (d) a straight stick
  36. 36.⚖️ Fair test — how does the shadow of a stick change through the day? What do we do with “the same spot”? (a) we change it (b) we keep it the same (c) we measure it
  37. 37.True or false: clear glass is transparent. (a) True (b) False
  38. 38.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a sunny open place (b) a straight stick (c) chalk to mark shadows (d) a balloon
  39. 39.🔍 Which is the odd one out? (a) your hand (b) tissue paper (c) frosted glass (d) oily paper
  40. 40.🔦 Is a book opaque, translucent or transparent? (a) opaque (b) translucent (c) transparent

Answer key

  1. not needed
  2. a book
  3. False
  4. tissue paper
  5. False
  6. clear glass
  7. True
  8. translucent
  9. False
  10. around noon
  11. a balloon
  12. frosted glass
  13. look straight at the Sun
  14. does not work well
  15. translucent
  16. clear glass
  17. butter paper
  18. long
  19. opaque
  20. a cap or hat
  21. transparent
  22. False
  23. True
  24. a magnet
  25. a magnet
  26. needed
  27. True
  28. butter paper
  29. bigger
  30. west
  31. True
  32. we measure it
  33. False
  34. a sunny open place
  35. yeast
  36. we keep it the same
  37. True
  38. a balloon
  39. your hand
  40. opaque

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