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Shadow and Sundial Experiment Worksheet

Science experiments lesson 27: Shadows and a sundial · Set 354 · 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.🛟 While watching shadows outdoors, what must you never do? (a) sit in the shade (b) mark with chalk (c) wear a cap (d) look straight at the Sun
  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 stick kept upright (b) shadow length (c) the same stick (d) the time of day
  3. 3.🧺 Which of these is needed for the shadow clock? (a) a battery cell (b) turmeric powder (c) a sunny open place (d) a magnet
  4. 4.True or false: yeast is not needed for the shadow clock. (a) True (b) False
  5. 5.🌍 Why does the stick’s shadow move during the day? (a) Earth keeps spinning (b) the stick walks (c) the ground slides (d) the stick grows
  6. 6.🔮 Predict: on a fully cloudy day, the sundial ___. (a) runs faster (b) shows two times (c) works better (d) does not work well
  7. 7.⚖️ 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 keep it the same (c) we change it
  8. 8.True or false: a book is opaque. (a) False (b) True
  9. 9.🔦 Which of these is transparent? (a) oily paper (b) a wooden board (c) a brick (d) air
  10. 10.⚖️ 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
  11. 11.🛟 What should you wear for a long time in the hot sun? (a) nothing on your head (b) a cap or hat (c) a woollen sweater (d) a raincoat
  12. 12.🧺 Do we need a mirror for the shadow clock? (a) not needed (b) needed
  13. 13.True or false: yeast is needed for the shadow clock. (a) True (b) False
  14. 14.🔍 Which is the odd one out? (a) a brick (b) frosted glass (c) oily paper (d) butter paper
  15. 15.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) chalk to mark shadows (b) a battery cell (c) a straight stick (d) a clock to check
  16. 16.True or false: chalk to mark shadows is needed for the shadow clock. (a) False (b) True
  17. 17.🔦 Is a wooden board opaque, translucent or transparent? (a) transparent (b) opaque (c) translucent
  18. 18.🔦 Is a book opaque, translucent or transparent? (a) transparent (b) opaque (c) translucent
  19. 19.⚖️ 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
  20. 20.⚖️ 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
  21. 21.🧺 Which of these is not needed for the shadow clock? (a) chalk to mark shadows (b) yeast (c) a clock to check (d) a sunny open place
  22. 22.🧺 Do we need chalk to mark shadows for the shadow clock? (a) needed (b) not needed
  23. 23.🌞 When is a stick’s shadow the shortest? (a) at night (b) late evening (c) around noon (d) early morning
  24. 24.🧺 Which of these is not needed for the shadow clock? (a) a clock to check (b) chalk to mark shadows (c) turmeric powder (d) a straight stick
  25. 25.🔍 Which is the odd one out? (a) air (b) clean water (c) clear glass (d) tissue paper
  26. 26.🔮 Predict: you move a torch closer to your hand. The shadow on the wall gets ___. (a) brighter (b) smaller (c) coloured (d) bigger
  27. 27.🔮 Predict: the Sun is low in the evening sky. The stick’s shadow is ___. (a) missing (b) round (c) long (d) short
  28. 28.🔍 Which is the odd one out? (a) oily paper (b) frosted glass (c) tissue paper (d) a steel plate
  29. 29.🔦 Which of these is opaque? (a) oily paper (b) air (c) a book (d) tissue paper
  30. 30.🧺 Do we need a battery cell for the shadow clock? (a) not needed (b) needed
  31. 31.🧺 Which of these is needed for the shadow clock? (a) a magnet (b) chalk to mark shadows (c) turmeric powder (d) yeast
  32. 32.True or false: a steel plate is transparent. (a) True (b) False
  33. 33.True or false: a magnet is not needed for the shadow clock. (a) False (b) True
  34. 34.🧺 Do we need turmeric powder for the shadow clock? (a) not needed (b) needed
  35. 35.⚖️ 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
  36. 36.🔍 Which is the odd one out? (a) oily paper (b) a book (c) tissue paper (d) butter paper
  37. 37.🌅 In the morning the Sun is in the east. Which way does a shadow point? (a) north (b) west (c) east (d) up
  38. 38.🧺 Which of these is needed for the shadow clock? (a) a balloon (b) yeast (c) a straight stick (d) a mirror
  39. 39.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a clock to check (b) chalk to mark shadows (c) a straight stick (d) a magnet
  40. 40.🧺 Do we need a straight stick for the shadow clock? (a) not needed (b) needed

Answer key

  1. look straight at the Sun
  2. the time of day
  3. a sunny open place
  4. True
  5. Earth keeps spinning
  6. does not work well
  7. we measure it
  8. True
  9. air
  10. False
  11. a cap or hat
  12. not needed
  13. False
  14. a brick
  15. a battery cell
  16. True
  17. opaque
  18. opaque
  19. we keep it the same
  20. True
  21. yeast
  22. needed
  23. around noon
  24. turmeric powder
  25. tissue paper
  26. bigger
  27. long
  28. a steel plate
  29. a book
  30. not needed
  31. chalk to mark shadows
  32. False
  33. True
  34. not needed
  35. we keep it the same
  36. a book
  37. west
  38. a straight stick
  39. a magnet
  40. needed

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