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Shadow and Sundial Experiment Worksheet

Science experiments lesson 27: Shadows and a sundial · Set 563 · 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 sunny open place is not needed for the shadow clock. (a) False (b) True
  2. 2.🧺 Which of these is needed for the shadow clock? (a) a balloon (b) a straight stick (c) yeast (d) a magnet
  3. 3.🧺 Do we need a straight stick for the shadow clock? (a) needed (b) not needed
  4. 4.🔍 Which is the odd one out? (a) a book (b) clean water (c) clear plastic film (d) clear glass
  5. 5.🕰️ What is a sundial used for? (a) measuring rain (b) making rainbows (c) telling the time (d) weighing things
  6. 6.🛟 While watching shadows outdoors, what must you never do? (a) mark with chalk (b) look straight at the Sun (c) wear a cap (d) sit in the shade
  7. 7.🧺 Which of these is needed for the shadow clock? (a) a battery cell (b) a mirror (c) a clock to check (d) a balloon
  8. 8.🔦 Is your hand opaque, translucent or transparent? (a) opaque (b) transparent (c) translucent
  9. 9.🔦 Which of these is translucent? (a) clean water (b) air (c) your hand (d) frosted glass
  10. 10.🔦 Is a brick opaque, translucent or transparent? (a) transparent (b) opaque (c) translucent
  11. 11.True or false: a balloon is needed for the shadow clock. (a) False (b) True
  12. 12.True or false: a battery cell is needed for the shadow clock. (a) False (b) True
  13. 13.⚖️ 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 stick kept upright (c) the same spot (d) the time of day
  14. 14.True or false: a balloon is not needed for the shadow clock. (a) True (b) False
  15. 15.🔮 Predict: you move a torch closer to your hand. The shadow on the wall gets ___. (a) smaller (b) coloured (c) brighter (d) bigger
  16. 16.🔮 Predict: on a fully cloudy day, the sundial ___. (a) works better (b) runs faster (c) shows two times (d) does not work well
  17. 17.🧺 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 battery cell
  18. 18.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a straight stick (b) a sunny open place (c) chalk to mark shadows (d) turmeric powder
  19. 19.🔦 Is clear plastic film opaque, translucent or transparent? (a) translucent (b) transparent (c) opaque
  20. 20.True or false: a wooden board is opaque. (a) True (b) False
  21. 21.🔦 Which of these is translucent? (a) a wooden board (b) a brick (c) oily paper (d) your hand
  22. 22.🌞 When is a stick’s shadow the shortest? (a) late evening (b) early morning (c) around noon (d) at night
  23. 23.True or false: clear glass is translucent. (a) True (b) False
  24. 24.True or false: chalk to mark shadows is needed for the shadow clock. (a) True (b) False
  25. 25.⚖️ Fair test — how does the shadow of a stick change through the day? Which of these is what we measure? (a) the same stick (b) the stick kept upright (c) the same spot (d) shadow length
  26. 26.🔦 Which of these is transparent? (a) a steel plate (b) tissue paper (c) clean water (d) your hand
  27. 27.🧺 Which of these is not needed for the shadow clock? (a) chalk to mark shadows (b) yeast (c) a sunny open place (d) a straight stick
  28. 28.🔍 Which is the odd one out? (a) air (b) clean water (c) clear plastic film (d) tissue paper
  29. 29.🔦 Which of these is transparent? (a) tissue paper (b) clear plastic film (c) your hand (d) butter paper
  30. 30.⚖️ 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 keep it the same (c) we measure it
  31. 31.True or false: a sunny open place is needed for the shadow clock. (a) False (b) True
  32. 32.🔦 Which of these is opaque? (a) a steel plate (b) tissue paper (c) butter paper (d) oily paper
  33. 33.🔍 Which is the odd one out? (a) a book (b) clear plastic film (c) your hand (d) a brick
  34. 34.🧺 Do we need a sunny open place for the shadow clock? (a) not needed (b) needed
  35. 35.True or false: frosted glass is translucent. (a) True (b) False
  36. 36.True or false: a clock to check is needed for the shadow clock. (a) True (b) False
  37. 37.⚖️ 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
  38. 38.🔦 Which of these is opaque? (a) frosted glass (b) oily paper (c) a brick (d) air
  39. 39.🧺 Which of these is needed for the shadow clock? (a) yeast (b) turmeric powder (c) a mirror (d) chalk to mark shadows
  40. 40.⚖️ 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

Answer key

  1. False
  2. a straight stick
  3. needed
  4. a book
  5. telling the time
  6. look straight at the Sun
  7. a clock to check
  8. opaque
  9. frosted glass
  10. opaque
  11. False
  12. False
  13. the time of day
  14. True
  15. bigger
  16. does not work well
  17. a battery cell
  18. turmeric powder
  19. transparent
  20. True
  21. oily paper
  22. around noon
  23. False
  24. True
  25. shadow length
  26. clean water
  27. yeast
  28. tissue paper
  29. clear plastic film
  30. we keep it the same
  31. True
  32. a steel plate
  33. clear plastic film
  34. needed
  35. True
  36. True
  37. we keep it the same
  38. a brick
  39. chalk to mark shadows
  40. True

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