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Shadow and Sundial Experiment Worksheet

Science experiments lesson 27: Shadows and a sundial · Set 888 · 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.🔦 Which of these is opaque? (a) tissue paper (b) clear glass (c) air (d) a book
  2. 2.📘 Why does a shadow form? (a) the object is cold (b) light bends round it (c) an object blocks light (d) the ground is dark
  3. 3.🔮 Predict: you move a torch closer to your hand. The shadow on the wall gets ___. (a) smaller (b) coloured (c) brighter (d) bigger
  4. 4.⚖️ 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
  5. 5.True or false: turmeric powder is not needed for the shadow clock. (a) False (b) True
  6. 6.🔦 Which of these is translucent? (a) a brick (b) clean water (c) tissue paper (d) clear plastic film
  7. 7.True or false: a straight stick is not needed for the shadow clock. (a) False (b) True
  8. 8.True or false: a balloon is not needed for the shadow clock. (a) False (b) True
  9. 9.🧺 Do we need a sunny open place for the shadow clock? (a) not needed (b) needed
  10. 10.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a straight stick (b) a sunny open place (c) a clock to check (d) turmeric powder
  11. 11.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a clock to check (b) a straight stick (c) a sunny open place (d) a mirror
  12. 12.True or false: a steel plate is transparent. (a) True (b) False
  13. 13.🛟 While watching shadows outdoors, what must you never do? (a) wear a cap (b) sit in the shade (c) mark with chalk (d) look straight at the Sun
  14. 14.🧺 Do we need turmeric powder for the shadow clock? (a) not needed (b) needed
  15. 15.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a clock to check (b) yeast (c) chalk to mark shadows (d) a sunny open place
  16. 16.True or false: a wooden board is transparent. (a) True (b) False
  17. 17.True or false: yeast is not needed for the shadow clock. (a) False (b) True
  18. 18.⚖️ 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
  19. 19.🔦 Which of these is transparent? (a) frosted glass (b) butter paper (c) oily paper (d) clear plastic film
  20. 20.🛟 What should you wear for a long time in the hot sun? (a) a cap or hat (b) a raincoat (c) nothing on your head (d) a woollen sweater
  21. 21.🧺 Do we need chalk to mark shadows for the shadow clock? (a) not needed (b) needed
  22. 22.True or false: a book is opaque. (a) True (b) False
  23. 23.🕰️ What is a sundial used for? (a) measuring rain (b) making rainbows (c) telling the time (d) weighing things
  24. 24.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) chalk to mark shadows (b) a straight stick (c) a magnet (d) a sunny open place
  25. 25.🔍 Which is the odd one out? (a) a wooden board (b) a brick (c) a book (d) clear glass
  26. 26.⚖️ Fair test — how does the shadow of a stick change through the day? Which of these is what we measure? (a) the time of day (b) the same stick (c) the same spot (d) shadow length
  27. 27.🔦 Is a wooden board opaque, translucent or transparent? (a) translucent (b) opaque (c) transparent
  28. 28.🧺 Do we need yeast for the shadow clock? (a) not needed (b) needed
  29. 29.🧺 Do we need a battery cell for the shadow clock? (a) not needed (b) needed
  30. 30.🔮 Predict: on a fully cloudy day, the sundial ___. (a) runs faster (b) works better (c) does not work well (d) shows two times
  31. 31.True or false: clear glass is translucent. (a) True (b) False
  32. 32.⚖️ 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) False (b) True
  33. 33.🧺 Do we need a balloon for the shadow clock? (a) not needed (b) needed
  34. 34.True or false: a sunny open place is not needed for the shadow clock. (a) False (b) True
  35. 35.⚖️ 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 stick kept upright (d) the same stick
  36. 36.True or false: yeast 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? Which of these is kept the same? (a) the time of day (b) the stick kept upright (c) shadow length
  38. 38.🧺 Which of these is needed for the shadow clock? (a) yeast (b) a mirror (c) a straight stick (d) a magnet
  39. 39.🔍 Which is the odd one out? (a) butter paper (b) a steel plate (c) your hand (d) a book
  40. 40.🔦 Is tissue paper opaque, translucent or transparent? (a) transparent (b) opaque (c) translucent

Answer key

  1. a book
  2. an object blocks light
  3. bigger
  4. False
  5. True
  6. tissue paper
  7. False
  8. True
  9. needed
  10. turmeric powder
  11. a mirror
  12. False
  13. look straight at the Sun
  14. not needed
  15. yeast
  16. False
  17. True
  18. we change it
  19. clear plastic film
  20. a cap or hat
  21. needed
  22. True
  23. telling the time
  24. a magnet
  25. clear glass
  26. shadow length
  27. opaque
  28. not needed
  29. not needed
  30. does not work well
  31. False
  32. False
  33. not needed
  34. False
  35. the time of day
  36. False
  37. the stick kept upright
  38. a straight stick
  39. butter paper
  40. translucent

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