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Shadow and Sundial Experiment Worksheet

Science experiments lesson 27: Shadows and a sundial · Set 970 · 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 not needed for the shadow clock? (a) a clock to check (b) yeast (c) a straight stick (d) chalk to mark shadows
  2. 2.🧺 Do we need turmeric powder for the shadow clock? (a) not needed (b) needed
  3. 3.🌞 When is a stick’s shadow the shortest? (a) at night (b) early morning (c) late evening (d) around noon
  4. 4.True or false: a magnet is needed for the shadow clock. (a) False (b) True
  5. 5.🔮 Predict: on a fully cloudy day, the sundial ___. (a) does not work well (b) runs faster (c) works better (d) shows two times
  6. 6.🔦 Which of these is translucent? (a) air (b) a wooden board (c) tissue paper (d) clear plastic film
  7. 7.🧺 Which of these is needed for the shadow clock? (a) a straight stick (b) a battery cell (c) a magnet (d) a balloon
  8. 8.🛟 While watching shadows outdoors, what must you never do? (a) wear a cap (b) mark with chalk (c) look straight at the Sun (d) sit in the shade
  9. 9.🔦 Is a brick opaque, translucent or transparent? (a) opaque (b) translucent (c) transparent
  10. 10.⚖️ 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
  11. 11.True or false: a mirror is not needed for the shadow clock. (a) False (b) True
  12. 12.🌍 Why does the stick’s shadow move during the day? (a) the ground slides (b) the stick grows (c) Earth keeps spinning (d) the stick walks
  13. 13.⚖️ Fair test — how does the shadow of a stick change through the day? What do we do with “shadow length”? (a) we keep it the same (b) we measure it (c) we change it
  14. 14.🧺 Which of these is not needed for the shadow clock? (a) a clock to check (b) a straight stick (c) a sunny open place (d) a battery cell
  15. 15.🛟 What should you wear for a long time in the hot sun? (a) nothing on your head (b) a raincoat (c) a woollen sweater (d) a cap or hat
  16. 16.🔍 Which is the odd one out? (a) a brick (b) a book (c) oily paper (d) a steel plate
  17. 17.⚖️ Fair test — how does the shadow of a stick change through the day? Which of these is what we measure? (a) shadow length (b) the same spot (c) the stick kept upright (d) the same stick
  18. 18.⚖️ 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
  19. 19.🔮 Predict: the Sun is low in the evening sky. The stick’s shadow is ___. (a) long (b) round (c) missing (d) short
  20. 20.📘 Why does a shadow form? (a) the object is cold (b) the ground is dark (c) an object blocks light (d) light bends round it
  21. 21.🔦 Is a book opaque, translucent or transparent? (a) transparent (b) translucent (c) opaque
  22. 22.🔦 Is tissue paper opaque, translucent or transparent? (a) translucent (b) opaque (c) transparent
  23. 23.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a straight stick (b) chalk to mark shadows (c) a balloon (d) a clock to check
  24. 24.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a clock to check (b) a battery cell (c) a sunny open place (d) a straight stick
  25. 25.🌅 In the morning the Sun is in the east. Which way does a shadow point? (a) east (b) west (c) north (d) up
  26. 26.True or false: frosted glass is translucent. (a) True (b) False
  27. 27.🧺 Do we need a mirror for the shadow clock? (a) needed (b) not needed
  28. 28.⚖️ 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
  29. 29.True or false: chalk to mark shadows is not needed for the shadow clock. (a) False (b) True
  30. 30.⚖️ 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 same stick (d) the stick kept upright
  31. 31.⚖️ Fair test — how does the shadow of a stick change through the day? Which of these is kept the same? (a) shadow length (b) the time of day (c) the same spot
  32. 32.🔦 Is clean water opaque, translucent or transparent? (a) translucent (b) transparent (c) opaque
  33. 33.True or false: a balloon is not needed for the shadow clock. (a) False (b) True
  34. 34.🧺 Which of these is not needed for the shadow clock? (a) a sunny open place (b) a clock to check (c) a balloon (d) chalk to mark shadows
  35. 35.True or false: your hand is opaque. (a) True (b) False
  36. 36.🧺 Do we need a straight stick for the shadow clock? (a) needed (b) not needed
  37. 37.🔦 Which of these is transparent? (a) clean water (b) a steel plate (c) tissue paper (d) a wooden board
  38. 38.🧺 Do we need a magnet for the shadow clock? (a) not needed (b) needed
  39. 39.True or false: a balloon is needed for the shadow clock. (a) False (b) True
  40. 40.🔍 Which is the odd one out? (a) a wooden board (b) your hand (c) a book (d) clear glass

Answer key

  1. yeast
  2. not needed
  3. around noon
  4. False
  5. does not work well
  6. tissue paper
  7. a straight stick
  8. look straight at the Sun
  9. opaque
  10. False
  11. True
  12. Earth keeps spinning
  13. we measure it
  14. a battery cell
  15. a cap or hat
  16. oily paper
  17. shadow length
  18. True
  19. long
  20. an object blocks light
  21. opaque
  22. translucent
  23. a balloon
  24. a battery cell
  25. west
  26. True
  27. not needed
  28. True
  29. False
  30. the time of day
  31. the same spot
  32. transparent
  33. True
  34. a balloon
  35. True
  36. needed
  37. clean water
  38. not needed
  39. False
  40. clear glass

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