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Shadow and Sundial Experiment Worksheet

Science experiments lesson 27: Shadows and a sundial · Set 120 · 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.🛟 What should you wear for a long time in the hot sun? (a) a raincoat (b) a cap or hat (c) a woollen sweater (d) nothing on your head
  3. 3.🌍 Why does the stick’s shadow move during the day? (a) the stick walks (b) the stick grows (c) the ground slides (d) Earth keeps spinning
  4. 4.🧺 Which of these is not needed for the shadow clock? (a) chalk to mark shadows (b) a sunny open place (c) a balloon (d) a clock to check
  5. 5.🔮 Predict: on a fully cloudy day, the sundial ___. (a) shows two times (b) runs faster (c) does not work well (d) works better
  6. 6.True or false: a mirror is needed for the shadow clock. (a) True (b) False
  7. 7.⚖️ 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
  8. 8.⚖️ Fair test — how does the shadow of a stick change through the day? What do we do with “the same stick”? (a) we change it (b) we measure it (c) we keep it the same
  9. 9.🔦 Is frosted glass opaque, translucent or transparent? (a) translucent (b) transparent (c) opaque
  10. 10.🔮 Predict: the Sun is low in the evening sky. The stick’s shadow is ___. (a) long (b) short (c) missing (d) round
  11. 11.🔍 Which is the odd one out? (a) air (b) clean water (c) a steel plate (d) clear glass
  12. 12.🛟 While watching shadows outdoors, what must you never do? (a) look straight at the Sun (b) wear a cap (c) sit in the shade (d) mark with chalk
  13. 13.🔦 Which of these is transparent? (a) oily paper (b) frosted glass (c) air (d) butter paper
  14. 14.🧺 Do we need a straight stick for the shadow clock? (a) needed (b) not needed
  15. 15.⚖️ 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 same spot (c) the same stick (d) shadow length
  16. 16.🧺 Do we need a mirror for the shadow clock? (a) needed (b) not needed
  17. 17.🔮 Predict: you move a torch closer to your hand. The shadow on the wall gets ___. (a) brighter (b) smaller (c) coloured (d) bigger
  18. 18.🔦 Is a brick opaque, translucent or transparent? (a) transparent (b) opaque (c) translucent
  19. 19.🧺 Which of these is not needed for the shadow clock? (a) a straight stick (b) chalk to mark shadows (c) a mirror (d) a clock to check
  20. 20.⚖️ 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) False (b) True
  21. 21.True or false: oily paper is opaque. (a) True (b) False
  22. 22.True or false: a magnet is not needed for the shadow clock. (a) False (b) True
  23. 23.🔍 Which is the odd one out? (a) a book (b) clear plastic film (c) air (d) clear glass
  24. 24.🔦 Is tissue paper opaque, translucent or transparent? (a) transparent (b) translucent (c) opaque
  25. 25.True or false: a book is transparent. (a) False (b) True
  26. 26.⚖️ Fair test — how does the shadow of a stick change through the day? What do we do with “the time of day”? (a) we change it (b) we measure it (c) we keep it the same
  27. 27.🔦 Which of these is translucent? (a) frosted glass (b) a wooden board (c) clear plastic film (d) a brick
  28. 28.⚖️ Fair test — how does the shadow of a stick change through the day? What do we do with “shadow length”? (a) we keep it the same (b) we change it (c) we measure it
  29. 29.🔍 Which is the odd one out? (a) clean water (b) clear plastic film (c) clear glass (d) a wooden board
  30. 30.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the same stick is kept the same. (a) False (b) True
  31. 31.🔦 Which of these is opaque? (a) clear glass (b) oily paper (c) butter paper (d) a book
  32. 32.🔦 Is air opaque, translucent or transparent? (a) translucent (b) transparent (c) opaque
  33. 33.⚖️ 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) True (b) False
  34. 34.True or false: yeast is needed for the shadow clock. (a) False (b) True
  35. 35.⚖️ 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) True (b) False
  36. 36.True or false: a steel plate is translucent. (a) True (b) False
  37. 37.True or false: a balloon is not needed for the shadow clock. (a) False (b) True
  38. 38.🔦 Is a wooden board opaque, translucent or transparent? (a) opaque (b) transparent (c) translucent
  39. 39.True or false: a magnet is needed for the shadow clock. (a) False (b) True
  40. 40.True or false: a straight stick is not needed for the shadow clock. (a) False (b) True

Answer key

  1. True
  2. a cap or hat
  3. Earth keeps spinning
  4. a balloon
  5. does not work well
  6. False
  7. True
  8. we keep it the same
  9. translucent
  10. long
  11. a steel plate
  12. look straight at the Sun
  13. air
  14. needed
  15. the time of day
  16. not needed
  17. bigger
  18. opaque
  19. a mirror
  20. False
  21. False
  22. True
  23. a book
  24. translucent
  25. False
  26. we change it
  27. frosted glass
  28. we measure it
  29. a wooden board
  30. True
  31. a book
  32. transparent
  33. False
  34. False
  35. False
  36. False
  37. True
  38. opaque
  39. False
  40. False

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