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Shadow and Sundial Experiment Worksheet

Science experiments lesson 27: Shadows and a sundial · Set 322 · 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.🌞 When is a stick’s shadow the shortest? (a) late evening (b) at night (c) early morning (d) around noon
  2. 2.🧺 Do we need a magnet for the shadow clock? (a) needed (b) not needed
  3. 3.🧺 Which of these is needed for the shadow clock? (a) a battery cell (b) turmeric powder (c) chalk to mark shadows (d) a mirror
  4. 4.🔮 Predict: the Sun is low in the evening sky. The stick’s shadow is ___. (a) round (b) missing (c) short (d) long
  5. 5.🕰️ What is a sundial used for? (a) measuring rain (b) telling the time (c) weighing things (d) making rainbows
  6. 6.🧺 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 sunny open place (d) yeast
  7. 7.🔦 Is clean water opaque, translucent or transparent? (a) translucent (b) opaque (c) transparent
  8. 8.🧺 Do we need a battery cell for the shadow clock? (a) not needed (b) needed
  9. 9.📘 Why does a shadow form? (a) an object blocks light (b) light bends round it (c) the ground is dark (d) the object is cold
  10. 10.🔦 Is a book opaque, translucent or transparent? (a) translucent (b) transparent (c) opaque
  11. 11.🔍 Which is the odd one out? (a) a book (b) clear glass (c) your hand (d) a brick
  12. 12.🧺 Do we need a balloon for the shadow clock? (a) needed (b) not needed
  13. 13.🌍 Why does the stick’s shadow move during the day? (a) the stick walks (b) Earth keeps spinning (c) the ground slides (d) the stick grows
  14. 14.True or false: a clock to check is not needed for the shadow clock. (a) False (b) True
  15. 15.⚖️ 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) True (b) False
  16. 16.🔦 Is clear glass opaque, translucent or transparent? (a) transparent (b) opaque (c) translucent
  17. 17.🧺 Which of these is needed for the shadow clock? (a) a balloon (b) a sunny open place (c) a mirror (d) a magnet
  18. 18.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the same spot is what we measure. (a) True (b) False
  19. 19.True or false: a balloon is not needed for the shadow clock. (a) True (b) False
  20. 20.True or false: clean water is translucent. (a) True (b) False
  21. 21.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the same spot is the one thing we change. (a) True (b) False
  22. 22.🧺 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 sunny open place (d) a battery cell
  23. 23.🔦 Which of these is opaque? (a) clean water (b) tissue paper (c) a wooden board (d) air
  24. 24.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: shadow length is what we measure. (a) False (b) True
  25. 25.🛟 What should you wear for a long time in the hot sun? (a) a raincoat (b) a woollen sweater (c) a cap or hat (d) nothing on your head
  26. 26.🧺 Which of these is needed for the shadow clock? (a) a battery cell (b) a mirror (c) a balloon (d) a straight stick
  27. 27.⚖️ 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 stick (c) the same spot (d) the time of day
  28. 28.True or false: a wooden board is opaque. (a) False (b) True
  29. 29.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a straight stick (b) a mirror (c) a clock to check (d) chalk to mark shadows
  30. 30.🔮 Predict: on a fully cloudy day, the sundial ___. (a) does not work well (b) shows two times (c) works better (d) runs faster
  31. 31.🧺 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) a straight stick (d) a balloon
  32. 32.🔦 Is a steel plate opaque, translucent or transparent? (a) translucent (b) transparent (c) opaque
  33. 33.🧺 Do we need a sunny open place for the shadow clock? (a) not needed (b) needed
  34. 34.⚖️ Fair test — how does the shadow of a stick change through the day? Which of these is what we measure? (a) the stick kept upright (b) shadow length (c) the same spot (d) the time of day
  35. 35.True or false: clean water is opaque. (a) True (b) False
  36. 36.🔦 Is air opaque, translucent or transparent? (a) transparent (b) opaque (c) translucent
  37. 37.True or false: clear plastic film is transparent. (a) True (b) False
  38. 38.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a sunny open place (b) a straight stick (c) turmeric powder (d) chalk to mark shadows
  39. 39.🧺 Do we need chalk to mark shadows for the shadow clock? (a) needed (b) not needed
  40. 40.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a magnet (b) a sunny open place (c) a clock to check (d) a straight stick

Answer key

  1. around noon
  2. not needed
  3. chalk to mark shadows
  4. long
  5. telling the time
  6. yeast
  7. transparent
  8. not needed
  9. an object blocks light
  10. opaque
  11. clear glass
  12. not needed
  13. Earth keeps spinning
  14. False
  15. True
  16. transparent
  17. a sunny open place
  18. False
  19. True
  20. False
  21. False
  22. a battery cell
  23. a wooden board
  24. True
  25. a cap or hat
  26. a straight stick
  27. the time of day
  28. True
  29. a mirror
  30. does not work well
  31. a balloon
  32. opaque
  33. needed
  34. shadow length
  35. False
  36. transparent
  37. True
  38. turmeric powder
  39. needed
  40. a magnet

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