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Shadow and Sundial Experiment Worksheet

Science experiments lesson 27: Shadows and a sundial · Set 280 · 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 sunny open place (b) a clock to check (c) a magnet (d) chalk to mark shadows
  2. 2.🔦 Is clear glass opaque, translucent or transparent? (a) translucent (b) opaque (c) transparent
  3. 3.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a balloon (b) a clock to check (c) a sunny open place (d) chalk to mark shadows
  4. 4.🧺 Which of these is needed for the shadow clock? (a) a battery cell (b) chalk to mark shadows (c) a mirror (d) a balloon
  5. 5.🧺 Do we need chalk to mark shadows for the shadow clock? (a) needed (b) not needed
  6. 6.🧺 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) turmeric powder (d) a clock to check
  7. 7.True or false: butter paper is opaque. (a) True (b) False
  8. 8.🧺 Do we need a balloon for the shadow clock? (a) needed (b) not needed
  9. 9.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the stick kept upright is the one thing we change. (a) True (b) False
  10. 10.⚖️ 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
  11. 11.🔦 Which of these is translucent? (a) your hand (b) oily paper (c) air (d) a book
  12. 12.🌅 In the morning the Sun is in the east. Which way does a shadow point? (a) west (b) north (c) east (d) up
  13. 13.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the same stick is what we measure. (a) False (b) True
  14. 14.True or false: a balloon is not needed for the shadow clock. (a) True (b) False
  15. 15.📘 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
  16. 16.🔮 Predict: you move a torch closer to your hand. The shadow on the wall gets ___. (a) brighter (b) coloured (c) bigger (d) smaller
  17. 17.⚖️ 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
  18. 18.🧺 Do we need a magnet for the shadow clock? (a) needed (b) not needed
  19. 19.True or false: a mirror is needed for the shadow clock. (a) False (b) True
  20. 20.🔍 Which is the odd one out? (a) clean water (b) air (c) clear glass (d) a wooden board
  21. 21.🔍 Which is the odd one out? (a) frosted glass (b) your hand (c) a brick (d) a steel plate
  22. 22.True or false: a magnet is not needed for the shadow clock. (a) True (b) False
  23. 23.🧺 Do we need a clock to check for the shadow clock? (a) needed (b) not needed
  24. 24.True or false: tissue paper is translucent. (a) False (b) True
  25. 25.🔦 Which of these is translucent? (a) clear plastic film (b) a wooden board (c) frosted glass (d) clean water
  26. 26.🔦 Is a brick opaque, translucent or transparent? (a) transparent (b) translucent (c) opaque
  27. 27.⚖️ Fair test — how does the shadow of a stick change through the day? What do we do with “the same spot”? (a) we change it (b) we keep it the same (c) we measure it
  28. 28.🔮 Predict: the Sun is low in the evening sky. The stick’s shadow is ___. (a) short (b) missing (c) long (d) round
  29. 29.🧺 Do we need turmeric powder for the shadow clock? (a) not needed (b) needed
  30. 30.True or false: frosted glass is opaque. (a) False (b) True
  31. 31.True or false: air is translucent. (a) True (b) False
  32. 32.⚖️ 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
  33. 33.🌞 When is a stick’s shadow the shortest? (a) around noon (b) early morning (c) late evening (d) at night
  34. 34.🕰️ What is a sundial used for? (a) weighing things (b) telling the time (c) making rainbows (d) measuring rain
  35. 35.True or false: a magnet is needed for the shadow clock. (a) False (b) True
  36. 36.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a sunny open place (b) a battery cell (c) chalk to mark shadows (d) a straight stick
  37. 37.True or false: a brick is translucent. (a) False (b) True
  38. 38.True or false: a battery cell is not needed for the shadow clock. (a) True (b) False
  39. 39.⚖️ Fair test — how does the shadow of a stick change through the day? What do we do with “the same stick”? (a) we keep it the same (b) we change it (c) we measure it
  40. 40.🛟 While watching shadows outdoors, what must you never do? (a) look straight at the Sun (b) wear a cap (c) mark with chalk (d) sit in the shade

Answer key

  1. a magnet
  2. transparent
  3. a balloon
  4. chalk to mark shadows
  5. needed
  6. turmeric powder
  7. False
  8. not needed
  9. False
  10. True
  11. oily paper
  12. west
  13. False
  14. True
  15. an object blocks light
  16. bigger
  17. True
  18. not needed
  19. False
  20. a wooden board
  21. frosted glass
  22. True
  23. needed
  24. True
  25. frosted glass
  26. opaque
  27. we keep it the same
  28. long
  29. not needed
  30. False
  31. False
  32. we measure it
  33. around noon
  34. telling the time
  35. False
  36. a battery cell
  37. False
  38. True
  39. we keep it the same
  40. look straight at the Sun

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