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Shadow and Sundial Experiment Worksheet

Science experiments lesson 27: Shadows and a sundial · Set 855 · 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? Which of these is the one thing we change? (a) the stick kept upright (b) shadow length (c) the same spot (d) the time of day
  2. 2.🧺 Which of these is needed for the shadow clock? (a) a balloon (b) a mirror (c) a battery cell (d) a straight stick
  3. 3.🛟 While watching shadows outdoors, what must you never do? (a) mark with chalk (b) wear a cap (c) look straight at the Sun (d) sit in the shade
  4. 4.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the time of day is kept the same. (a) True (b) False
  5. 5.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) chalk to mark shadows (b) a magnet (c) a clock to check (d) a straight stick
  6. 6.🧺 Do we need a clock to check for the shadow clock? (a) needed (b) not needed
  7. 7.🧺 Which of these is not needed for the shadow clock? (a) a clock to check (b) a sunny open place (c) yeast (d) chalk to mark shadows
  8. 8.True or false: turmeric powder is needed for the shadow clock. (a) True (b) False
  9. 9.🌞 When is a stick’s shadow the shortest? (a) late evening (b) around noon (c) early morning (d) at night
  10. 10.🔍 Which is the odd one out? (a) a brick (b) frosted glass (c) butter paper (d) oily paper
  11. 11.True or false: a steel plate is opaque. (a) False (b) True
  12. 12.True or false: tissue paper is translucent. (a) True (b) False
  13. 13.🔮 Predict: the Sun is low in the evening sky. The stick’s shadow is ___. (a) short (b) round (c) missing (d) long
  14. 14.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a sunny open place (b) a balloon (c) a straight stick (d) chalk to mark shadows
  15. 15.True or false: a brick is translucent. (a) True (b) False
  16. 16.🌅 In the morning the Sun is in the east. Which way does a shadow point? (a) up (b) north (c) east (d) west
  17. 17.⚖️ Fair test — how does the shadow of a stick change through the day? What do we do with “the same stick”? (a) we measure it (b) we change it (c) we keep it the same
  18. 18.🔦 Which of these is opaque? (a) a book (b) butter paper (c) clear glass (d) tissue paper
  19. 19.🔦 Is oily paper opaque, translucent or transparent? (a) opaque (b) transparent (c) translucent
  20. 20.⚖️ 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
  21. 21.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the same stick is what we measure. (a) True (b) False
  22. 22.🔍 Which is the odd one out? (a) butter paper (b) clear glass (c) frosted glass (d) tissue paper
  23. 23.🔦 Which of these is opaque? (a) clean water (b) a wooden board (c) frosted glass (d) air
  24. 24.🛟 What should you wear for a long time in the hot sun? (a) nothing on your head (b) a raincoat (c) a cap or hat (d) a woollen sweater
  25. 25.🧺 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) yeast (d) a sunny open place
  26. 26.🧺 Do we need turmeric powder for the shadow clock? (a) not needed (b) needed
  27. 27.🔍 Which is the odd one out? (a) air (b) tissue paper (c) frosted glass (d) oily paper
  28. 28.True or false: turmeric powder is not needed for the shadow clock. (a) True (b) False
  29. 29.🕰️ What is a sundial used for? (a) measuring rain (b) weighing things (c) making rainbows (d) telling the time
  30. 30.True or false: a sunny open place is needed for the shadow clock. (a) False (b) True
  31. 31.🧺 Do we need a magnet for the shadow clock? (a) needed (b) not needed
  32. 32.True or false: a mirror is needed for the shadow clock. (a) False (b) True
  33. 33.🔮 Predict: you move a torch closer to your hand. The shadow on the wall gets ___. (a) coloured (b) smaller (c) bigger (d) brighter
  34. 34.📘 Why does a shadow form? (a) the ground is dark (b) the object is cold (c) an object blocks light (d) light bends round it
  35. 35.🔮 Predict: on a fully cloudy day, the sundial ___. (a) shows two times (b) runs faster (c) does not work well (d) works better
  36. 36.🧺 Which of these is needed for the shadow clock? (a) a battery cell (b) turmeric powder (c) a mirror (d) chalk to mark shadows
  37. 37.⚖️ 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 change it (c) we measure it
  38. 38.🔦 Is frosted glass opaque, translucent or transparent? (a) transparent (b) translucent (c) opaque
  39. 39.🔦 Which of these is translucent? (a) clean water (b) oily paper (c) a wooden board (d) a book
  40. 40.True or false: a straight stick is needed for the shadow clock. (a) True (b) False

Answer key

  1. the time of day
  2. a straight stick
  3. look straight at the Sun
  4. False
  5. a magnet
  6. needed
  7. yeast
  8. False
  9. around noon
  10. a brick
  11. True
  12. True
  13. long
  14. a balloon
  15. False
  16. west
  17. we keep it the same
  18. a book
  19. translucent
  20. True
  21. False
  22. clear glass
  23. a wooden board
  24. a cap or hat
  25. yeast
  26. not needed
  27. air
  28. True
  29. telling the time
  30. True
  31. not needed
  32. False
  33. bigger
  34. an object blocks light
  35. does not work well
  36. chalk to mark shadows
  37. we measure it
  38. translucent
  39. oily paper
  40. True

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