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Shadow and Sundial Experiment Worksheet

Science experiments lesson 27: Shadows and a sundial · Set 605 · 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? True or false: the same stick is kept the same. (a) False (b) True
  2. 2.True or false: a wooden board is translucent. (a) False (b) True
  3. 3.True or false: a sunny open place is not needed for the shadow clock. (a) False (b) True
  4. 4.🧺 Do we need turmeric powder for the shadow clock? (a) needed (b) not needed
  5. 5.🧺 Do we need a balloon for the shadow clock? (a) not needed (b) needed
  6. 6.True or false: yeast is needed for the shadow clock. (a) False (b) True
  7. 7.⚖️ 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 time of day (c) the stick kept upright (d) the same stick
  8. 8.🔍 Which is the odd one out? (a) frosted glass (b) a wooden board (c) oily paper (d) butter paper
  9. 9.🌅 In the morning the Sun is in the east. Which way does a shadow point? (a) up (b) west (c) north (d) east
  10. 10.🛟 What should you wear for a long time in the hot sun? (a) nothing on your head (b) a cap or hat (c) a raincoat (d) a woollen sweater
  11. 11.📘 Why does a shadow form? (a) light bends round it (b) the ground is dark (c) an object blocks light (d) the object is cold
  12. 12.True or false: a clock to check is not needed for the shadow clock. (a) True (b) False
  13. 13.🔍 Which is the odd one out? (a) frosted glass (b) air (c) clear plastic film (d) clear glass
  14. 14.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a sunny open place (b) a straight stick (c) a magnet (d) a clock to check
  15. 15.🔮 Predict: you move a torch closer to your hand. The shadow on the wall gets ___. (a) coloured (b) brighter (c) bigger (d) smaller
  16. 16.⚖️ 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
  17. 17.🧺 Do we need a sunny open place for the shadow clock? (a) needed (b) not needed
  18. 18.🛟 While watching shadows outdoors, what must you never do? (a) look straight at the Sun (b) mark with chalk (c) sit in the shade (d) wear a cap
  19. 19.True or false: your hand is transparent. (a) False (b) True
  20. 20.🧺 Do we need a mirror for the shadow clock? (a) needed (b) not needed
  21. 21.🧺 Do we need a battery cell for the shadow clock? (a) not needed (b) needed
  22. 22.🔦 Is air opaque, translucent or transparent? (a) translucent (b) transparent (c) opaque
  23. 23.🧺 Which of these is not needed for the shadow clock? (a) a straight stick (b) a mirror (c) chalk to mark shadows (d) a clock to check
  24. 24.🌞 When is a stick’s shadow the shortest? (a) early morning (b) late evening (c) at night (d) around noon
  25. 25.🔮 Predict: the Sun is low in the evening sky. The stick’s shadow is ___. (a) short (b) round (c) long (d) missing
  26. 26.🔦 Is a wooden board opaque, translucent or transparent? (a) transparent (b) translucent (c) opaque
  27. 27.True or false: chalk to mark shadows is needed for the shadow clock. (a) True (b) False
  28. 28.🔦 Which of these is transparent? (a) air (b) a brick (c) oily paper (d) your hand
  29. 29.🔮 Predict: on a fully cloudy day, the sundial ___. (a) does not work well (b) runs faster (c) shows two times (d) works better
  30. 30.🧺 Which of these is not needed for the shadow clock? (a) a clock to check (b) chalk to mark shadows (c) a straight stick (d) a battery cell
  31. 31.🔦 Which of these is translucent? (a) clean water (b) your hand (c) clear glass (d) tissue paper
  32. 32.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the same stick is the one thing we change. (a) False (b) True
  33. 33.True or false: frosted glass is opaque. (a) False (b) True
  34. 34.⚖️ 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) False (b) True
  35. 35.⚖️ Fair test — how does the shadow of a stick change through the day? What do we do with “shadow length”? (a) we measure it (b) we change it (c) we keep it the same
  36. 36.True or false: turmeric powder is needed for the shadow clock. (a) True (b) False
  37. 37.🧺 Which of these is not needed for the shadow clock? (a) chalk to mark shadows (b) a straight stick (c) a magnet (d) a clock to check
  38. 38.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) chalk to mark shadows (b) a mirror (c) a clock to check (d) a sunny open place
  39. 39.⚖️ Fair test — how does the shadow of a stick change through the day? Which of these is kept the same? (a) the time of day (b) the stick kept upright (c) shadow length
  40. 40.⚖️ Fair test — how does the shadow of a stick change through the day? Which of these is the one thing we change? (a) the same spot (b) the same stick (c) the stick kept upright (d) the time of day

Answer key

  1. True
  2. False
  3. False
  4. not needed
  5. not needed
  6. False
  7. shadow length
  8. a wooden board
  9. west
  10. a cap or hat
  11. an object blocks light
  12. False
  13. frosted glass
  14. a magnet
  15. bigger
  16. False
  17. needed
  18. look straight at the Sun
  19. False
  20. not needed
  21. not needed
  22. transparent
  23. a mirror
  24. around noon
  25. long
  26. opaque
  27. True
  28. air
  29. does not work well
  30. a battery cell
  31. tissue paper
  32. False
  33. False
  34. False
  35. we measure it
  36. False
  37. a magnet
  38. a mirror
  39. the stick kept upright
  40. the time of day

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