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Shadow and Sundial Experiment Worksheet

Science experiments lesson 27: Shadows and a sundial · Set 327 · 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.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a clock to check (b) a sunny open place (c) chalk to mark shadows (d) a battery cell
  2. 2.True or false: a magnet is not needed for the shadow clock. (a) True (b) False
  3. 3.🌞 When is a stick’s shadow the shortest? (a) early morning (b) around noon (c) late evening (d) at night
  4. 4.🧺 Do we need a clock to check for the shadow clock? (a) not needed (b) needed
  5. 5.🔍 Which is the odd one out? (a) oily paper (b) clean water (c) butter paper (d) frosted glass
  6. 6.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the time of day is what we measure. (a) True (b) False
  7. 7.True or false: chalk to mark shadows is not needed for the shadow clock. (a) False (b) True
  8. 8.🌍 Why does the stick’s shadow move during the day? (a) the stick walks (b) the stick grows (c) the ground slides (d) Earth keeps spinning
  9. 9.🧺 Which of these is needed for the shadow clock? (a) a battery cell (b) turmeric powder (c) a balloon (d) a sunny open place
  10. 10.🛟 While watching shadows outdoors, what must you never do? (a) mark with chalk (b) sit in the shade (c) look straight at the Sun (d) wear a cap
  11. 11.🛟 What should you wear for a long time in the hot sun? (a) a cap or hat (b) nothing on your head (c) a raincoat (d) a woollen sweater
  12. 12.🧺 Do we need a magnet for the shadow clock? (a) needed (b) not needed
  13. 13.🧺 Which of these is not needed for the shadow clock? (a) a sunny open place (b) chalk to mark shadows (c) a magnet (d) a straight stick
  14. 14.🔮 Predict: you move a torch closer to your hand. The shadow on the wall gets ___. (a) coloured (b) brighter (c) bigger (d) smaller
  15. 15.🔦 Which of these is opaque? (a) a brick (b) oily paper (c) air (d) clear glass
  16. 16.🔦 Is clean water opaque, translucent or transparent? (a) transparent (b) opaque (c) translucent
  17. 17.🧺 Do we need a battery cell for the shadow clock? (a) not needed (b) needed
  18. 18.📘 Why does a shadow form? (a) an object blocks light (b) the ground is dark (c) the object is cold (d) light bends round it
  19. 19.🧺 Do we need a sunny open place for the shadow clock? (a) not needed (b) needed
  20. 20.🔦 Which of these is opaque? (a) clean water (b) clear plastic film (c) butter paper (d) a steel plate
  21. 21.🔮 Predict: on a fully cloudy day, the sundial ___. (a) shows two times (b) does not work well (c) works better (d) runs faster
  22. 22.True or false: a straight stick is not needed for the shadow clock. (a) False (b) True
  23. 23.🧺 Which of these is not needed for the shadow clock? (a) chalk to mark shadows (b) a sunny open place (c) a straight stick (d) turmeric powder
  24. 24.🧺 Do we need turmeric powder for the shadow clock? (a) needed (b) not needed
  25. 25.🧺 Do we need a straight stick for the shadow clock? (a) needed (b) not needed
  26. 26.🔦 Which of these is opaque? (a) butter paper (b) tissue paper (c) frosted glass (d) a wooden board
  27. 27.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a sunny open place (b) chalk to mark shadows (c) yeast (d) a clock to check
  28. 28.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the stick kept upright is kept the same. (a) False (b) True
  29. 29.True or false: a balloon is needed for the shadow clock. (a) True (b) False
  30. 30.True or false: clear glass is transparent. (a) False (b) True
  31. 31.⚖️ 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) the same spot (c) shadow length (d) the time of day
  32. 32.🧺 Do we need yeast for the shadow clock? (a) needed (b) not needed
  33. 33.🔦 Which of these is opaque? (a) clear plastic film (b) clear glass (c) your hand (d) clean water
  34. 34.🧺 Which of these is needed for the shadow clock? (a) a mirror (b) a battery cell (c) a balloon (d) chalk to mark shadows
  35. 35.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a sunny open place (b) a magnet (c) a clock to check (d) chalk to mark shadows
  36. 36.🔦 Which of these is transparent? (a) oily paper (b) a steel plate (c) a book (d) clear plastic film
  37. 37.🔍 Which is the odd one out? (a) oily paper (b) clear glass (c) clear plastic film (d) clean water
  38. 38.🧺 Which of these is needed for the shadow clock? (a) a battery cell (b) turmeric powder (c) a balloon (d) a straight stick
  39. 39.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the same spot is kept the same. (a) True (b) False
  40. 40.True or false: air is transparent. (a) True (b) False

Answer key

  1. a battery cell
  2. True
  3. around noon
  4. needed
  5. clean water
  6. False
  7. False
  8. Earth keeps spinning
  9. a sunny open place
  10. look straight at the Sun
  11. a cap or hat
  12. not needed
  13. a magnet
  14. bigger
  15. a brick
  16. transparent
  17. not needed
  18. an object blocks light
  19. needed
  20. a steel plate
  21. does not work well
  22. False
  23. turmeric powder
  24. not needed
  25. needed
  26. a wooden board
  27. yeast
  28. True
  29. False
  30. True
  31. the time of day
  32. not needed
  33. your hand
  34. chalk to mark shadows
  35. a magnet
  36. clear plastic film
  37. oily paper
  38. a straight stick
  39. True
  40. True

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