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Shadow and Sundial Experiment Worksheet

Science experiments lesson 27: Shadows and a sundial · Set 676 · 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.🔮 Predict: you move a torch closer to your hand. The shadow on the wall gets ___. (a) smaller (b) coloured (c) bigger (d) brighter
  2. 2.True or false: frosted glass is opaque. (a) False (b) True
  3. 3.True or false: chalk to mark shadows is needed for the shadow clock. (a) True (b) False
  4. 4.⚖️ 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
  5. 5.True or false: frosted glass is translucent. (a) True (b) False
  6. 6.🔍 Which is the odd one out? (a) a book (b) a brick (c) tissue paper (d) your hand
  7. 7.🔦 Is clean water opaque, translucent or transparent? (a) transparent (b) opaque (c) translucent
  8. 8.⚖️ Fair test — how does the shadow of a stick change through the day? Which of these is what we measure? (a) shadow length (b) the same spot (c) the stick kept upright (d) the time of day
  9. 9.True or false: clean water is transparent. (a) True (b) False
  10. 10.⚖️ 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
  11. 11.🔦 Is air opaque, translucent or transparent? (a) opaque (b) translucent (c) transparent
  12. 12.🔍 Which is the odd one out? (a) a book (b) frosted glass (c) oily paper (d) butter paper
  13. 13.🔮 Predict: the Sun is low in the evening sky. The stick’s shadow is ___. (a) short (b) long (c) round (d) missing
  14. 14.⚖️ 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
  15. 15.True or false: your hand is transparent. (a) True (b) False
  16. 16.⚖️ 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 measure it (c) we keep it the same
  17. 17.True or false: a mirror is needed for the shadow clock. (a) True (b) False
  18. 18.🧺 Which of these is needed for the shadow clock? (a) a balloon (b) a magnet (c) chalk to mark shadows (d) a battery cell
  19. 19.🌞 When is a stick’s shadow the shortest? (a) around noon (b) early morning (c) late evening (d) at night
  20. 20.🔦 Is clear plastic film opaque, translucent or transparent? (a) translucent (b) opaque (c) transparent
  21. 21.🧺 Which of these is needed for the shadow clock? (a) turmeric powder (b) a battery cell (c) a straight stick (d) yeast
  22. 22.True or false: butter paper is opaque. (a) False (b) True
  23. 23.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a sunny open place (b) chalk to mark shadows (c) a straight stick (d) a battery cell
  24. 24.True or false: chalk to mark shadows is not needed for the shadow clock. (a) False (b) True
  25. 25.True or false: a clock to check is not needed for the shadow clock. (a) False (b) True
  26. 26.🧺 Do we need chalk to mark shadows for the shadow clock? (a) needed (b) not needed
  27. 27.🔦 Is a brick opaque, translucent or transparent? (a) translucent (b) transparent (c) opaque
  28. 28.🔮 Predict: on a fully cloudy day, the sundial ___. (a) shows two times (b) works better (c) does not work well (d) runs faster
  29. 29.🧺 Do we need a mirror for the shadow clock? (a) not needed (b) needed
  30. 30.⚖️ 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) False (b) True
  31. 31.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the same spot is kept the same. (a) False (b) True
  32. 32.🧺 Which of these is not needed for the shadow clock? (a) a mirror (b) a straight stick (c) a clock to check (d) a sunny open place
  33. 33.🧺 Do we need a battery cell for the shadow clock? (a) not needed (b) needed
  34. 34.🛟 What should you wear for a long time in the hot sun? (a) a cap or hat (b) a woollen sweater (c) a raincoat (d) nothing on your head
  35. 35.🔍 Which is the odd one out? (a) your hand (b) a steel plate (c) a wooden board (d) frosted glass
  36. 36.🛟 While watching shadows outdoors, what must you never do? (a) look straight at the Sun (b) sit in the shade (c) wear a cap (d) mark with chalk
  37. 37.⚖️ Fair test — how does the shadow of a stick change through the day? What do we do with “the stick kept upright”? (a) we measure it (b) we keep it the same (c) we change it
  38. 38.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: shadow length is what we measure. (a) True (b) False
  39. 39.🔦 Is your hand opaque, translucent or transparent? (a) translucent (b) opaque (c) transparent
  40. 40.🔦 Which of these is transparent? (a) tissue paper (b) a book (c) a wooden board (d) clean water

Answer key

  1. bigger
  2. False
  3. True
  4. False
  5. True
  6. tissue paper
  7. transparent
  8. shadow length
  9. True
  10. we change it
  11. transparent
  12. a book
  13. long
  14. False
  15. False
  16. we keep it the same
  17. False
  18. chalk to mark shadows
  19. around noon
  20. transparent
  21. a straight stick
  22. False
  23. a battery cell
  24. False
  25. False
  26. needed
  27. opaque
  28. does not work well
  29. not needed
  30. False
  31. True
  32. a mirror
  33. not needed
  34. a cap or hat
  35. frosted glass
  36. look straight at the Sun
  37. we keep it the same
  38. True
  39. opaque
  40. clean water

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