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Shadow and Sundial Experiment Worksheet

Science experiments lesson 27: Shadows and a sundial · Set 626 · 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.⚖️ Fair test — how does the shadow of a stick change through the day? What do we do with “the stick kept upright”? (a) we change it (b) we measure it (c) we keep it the same
  2. 2.🔍 Which is the odd one out? (a) butter paper (b) tissue paper (c) oily paper (d) clear glass
  3. 3.🔦 Is a book opaque, translucent or transparent? (a) translucent (b) transparent (c) opaque
  4. 4.🧺 Do we need a magnet for the shadow clock? (a) needed (b) not needed
  5. 5.🛟 What should you wear for a long time in the hot sun? (a) a woollen sweater (b) a raincoat (c) nothing on your head (d) a cap or hat
  6. 6.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a sunny open place (b) a straight stick (c) a clock to check (d) a mirror
  7. 7.🔍 Which is the odd one out? (a) frosted glass (b) a wooden board (c) oily paper (d) tissue paper
  8. 8.⚖️ Fair test — how does the shadow of a stick change through the day? What do we do with “the same spot”? (a) we measure it (b) we change it (c) we keep it the same
  9. 9.🛟 While watching shadows outdoors, what must you never do? (a) sit in the shade (b) wear a cap (c) look straight at the Sun (d) mark with chalk
  10. 10.🌞 When is a stick’s shadow the shortest? (a) at night (b) late evening (c) early morning (d) around noon
  11. 11.🧺 Do we need chalk to mark shadows for the shadow clock? (a) needed (b) not needed
  12. 12.⚖️ 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
  13. 13.⚖️ 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) shadow length (c) the stick kept upright (d) the same stick
  14. 14.🔦 Is butter paper opaque, translucent or transparent? (a) translucent (b) opaque (c) transparent
  15. 15.🌍 Why does the stick’s shadow move during the day? (a) the stick walks (b) the ground slides (c) the stick grows (d) Earth keeps spinning
  16. 16.📘 Why does a shadow form? (a) the ground is dark (b) an object blocks light (c) the object is cold (d) light bends round it
  17. 17.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) chalk to mark shadows (b) a clock to check (c) a straight stick (d) a magnet
  18. 18.True or false: frosted glass is opaque. (a) True (b) False
  19. 19.True or false: a book is opaque. (a) True (b) False
  20. 20.🔦 Is a brick opaque, translucent or transparent? (a) translucent (b) opaque (c) transparent
  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? Which of these is the one thing we change? (a) shadow length (b) the time of day (c) the same spot (d) the same stick
  23. 23.True or false: turmeric powder is not needed for the shadow clock. (a) True (b) False
  24. 24.🧺 Do we need a clock to check for the shadow clock? (a) needed (b) not needed
  25. 25.True or false: a brick is opaque. (a) True (b) False
  26. 26.⚖️ Fair test — how does the shadow of a stick change through the day? Which of these is kept the same? (a) the same stick (b) shadow length (c) the time of day
  27. 27.🧺 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) turmeric powder (d) a sunny open place
  28. 28.True or false: clear plastic film is opaque. (a) True (b) False
  29. 29.🧺 Which of these is not needed for the shadow clock? (a) a clock to check (b) a battery cell (c) a straight stick (d) chalk to mark shadows
  30. 30.True or false: a magnet is needed for the shadow clock. (a) True (b) False
  31. 31.🔮 Predict: on a fully cloudy day, the sundial ___. (a) shows two times (b) does not work well (c) runs faster (d) works better
  32. 32.True or false: yeast is needed for the shadow clock. (a) True (b) False
  33. 33.🧺 Do we need turmeric powder for the shadow clock? (a) needed (b) not needed
  34. 34.🔍 Which is the odd one out? (a) a book (b) your hand (c) clean water (d) a wooden board
  35. 35.🔦 Which of these is transparent? (a) a wooden board (b) butter paper (c) a book (d) clear plastic film
  36. 36.🔦 Which of these is opaque? (a) clear plastic film (b) clear glass (c) your hand (d) oily paper
  37. 37.🧺 Which of these is needed for the shadow clock? (a) a magnet (b) a sunny open place (c) a mirror (d) a battery cell
  38. 38.🔍 Which is the odd one out? (a) clear glass (b) frosted glass (c) clean water (d) clear plastic film
  39. 39.🧺 Which of these is not needed for the shadow clock? (a) a mirror (b) a sunny open place (c) a clock to check (d) a straight stick
  40. 40.🧺 Do we need a straight stick for the shadow clock? (a) needed (b) not needed

Answer key

  1. we keep it the same
  2. clear glass
  3. opaque
  4. not needed
  5. a cap or hat
  6. a mirror
  7. a wooden board
  8. we keep it the same
  9. look straight at the Sun
  10. around noon
  11. needed
  12. True
  13. shadow length
  14. translucent
  15. Earth keeps spinning
  16. an object blocks light
  17. a magnet
  18. False
  19. True
  20. opaque
  21. needed
  22. the time of day
  23. True
  24. needed
  25. True
  26. the same stick
  27. turmeric powder
  28. False
  29. a battery cell
  30. False
  31. does not work well
  32. False
  33. not needed
  34. clean water
  35. clear plastic film
  36. your hand
  37. a sunny open place
  38. frosted glass
  39. a mirror
  40. needed

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