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Shadow and Sundial Experiment Worksheet

Science experiments lesson 27: Shadows and a sundial · Set 647 · 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.

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

Answer key

  1. air
  2. True
  3. butter paper
  4. True
  5. needed
  6. a brick
  7. not needed
  8. look straight at the Sun
  9. a mirror
  10. True
  11. long
  12. False
  13. False
  14. not needed
  15. Earth keeps spinning
  16. False
  17. a brick
  18. tissue paper
  19. we measure it
  20. we keep it the same
  21. needed
  22. we keep it the same
  23. False
  24. the time of day
  25. False
  26. the same stick
  27. does not work well
  28. False
  29. a cap or hat
  30. clean water
  31. turmeric powder
  32. transparent
  33. True
  34. a mirror
  35. bigger
  36. we keep it the same
  37. butter paper
  38. opaque
  39. opaque
  40. True

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