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Shadow and Sundial Experiment Worksheet

Science experiments lesson 27: Shadows and a sundial · Set 313 · 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.True or false: a balloon is not needed for the shadow clock. (a) False (b) True
  2. 2.⚖️ Fair test — how does the shadow of a stick change through the day? What do we do with “the same spot”? (a) we measure it (b) we change it (c) we keep it the same
  3. 3.🧺 Which of these is not needed for the shadow clock? (a) a straight stick (b) a sunny open place (c) turmeric powder (d) a clock to check
  4. 4.🛟 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
  5. 5.🧺 Do we need a balloon for the shadow clock? (a) needed (b) not needed
  6. 6.⚖️ 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 spot (c) the time of day (d) the same stick
  7. 7.🧺 Do we need a battery cell for the shadow clock? (a) needed (b) not needed
  8. 8.🔦 Which of these is opaque? (a) clean water (b) a book (c) butter paper (d) clear glass
  9. 9.True or false: a mirror is not needed for the shadow clock. (a) False (b) True
  10. 10.True or false: a wooden board is transparent. (a) False (b) True
  11. 11.🛟 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
  12. 12.🧺 Do we need a magnet for the shadow clock? (a) needed (b) not needed
  13. 13.🔦 Is a steel plate opaque, translucent or transparent? (a) translucent (b) opaque (c) transparent
  14. 14.🧺 Do we need yeast for the shadow clock? (a) needed (b) not needed
  15. 15.🔮 Predict: you move a torch closer to your hand. The shadow on the wall gets ___. (a) smaller (b) bigger (c) brighter (d) coloured
  16. 16.🔦 Is a wooden board opaque, translucent or transparent? (a) transparent (b) opaque (c) translucent
  17. 17.⚖️ Fair test — how does the shadow of a stick change through the day? What do we do with “shadow length”? (a) we change it (b) we measure it (c) we keep it the same
  18. 18.🔍 Which is the odd one out? (a) frosted glass (b) clear glass (c) butter paper (d) oily paper
  19. 19.🌅 In the morning the Sun is in the east. Which way does a shadow point? (a) east (b) up (c) west (d) north
  20. 20.🔦 Which of these is translucent? (a) your hand (b) clean water (c) butter paper (d) clear glass
  21. 21.⚖️ 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 stick kept upright (c) the time of day (d) the same stick
  22. 22.True or false: a magnet is not needed for the shadow clock. (a) True (b) False
  23. 23.🔍 Which is the odd one out? (a) oily paper (b) butter paper (c) a book (d) tissue paper
  24. 24.⚖️ 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) False (b) True
  25. 25.True or false: a sunny open place is not needed for the shadow clock. (a) True (b) False
  26. 26.🔦 Which of these is transparent? (a) a steel plate (b) air (c) a wooden board (d) a book
  27. 27.🔍 Which is the odd one out? (a) clear glass (b) your hand (c) clean water (d) clear plastic film
  28. 28.⚖️ 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
  29. 29.⚖️ 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) False (b) True
  30. 30.🔦 Is clean water opaque, translucent or transparent? (a) opaque (b) transparent (c) translucent
  31. 31.⚖️ Fair test — how does the shadow of a stick change through the day? What do we do with “the stick kept upright”? (a) we measure it (b) we change it (c) we keep it the same
  32. 32.⚖️ Fair test — how does the shadow of a stick change through the day? What do we do with “the time of day”? (a) we keep it the same (b) we change it (c) we measure it
  33. 33.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a clock to check (b) a straight stick (c) yeast (d) chalk to mark shadows
  34. 34.🧺 Do we need a mirror for the shadow clock? (a) needed (b) not needed
  35. 35.🔦 Which of these is translucent? (a) frosted glass (b) a wooden board (c) clear plastic film (d) a book
  36. 36.🧺 Which of these is not needed for the shadow clock? (a) a clock to check (b) a magnet (c) a straight stick (d) chalk to mark shadows
  37. 37.True or false: a battery cell is not needed for the shadow clock. (a) True (b) False
  38. 38.🔮 Predict: on a fully cloudy day, the sundial ___. (a) works better (b) shows two times (c) does not work well (d) runs faster
  39. 39.🔦 Is frosted glass opaque, translucent or transparent? (a) transparent (b) translucent (c) opaque
  40. 40.📘 Why does a shadow form? (a) the object is cold (b) light bends round it (c) the ground is dark (d) an object blocks light

Answer key

  1. True
  2. we keep it the same
  3. turmeric powder
  4. a cap or hat
  5. not needed
  6. the time of day
  7. not needed
  8. a book
  9. True
  10. False
  11. look straight at the Sun
  12. not needed
  13. opaque
  14. not needed
  15. bigger
  16. opaque
  17. we measure it
  18. clear glass
  19. west
  20. butter paper
  21. shadow length
  22. True
  23. a book
  24. False
  25. False
  26. air
  27. your hand
  28. False
  29. False
  30. transparent
  31. we keep it the same
  32. we change it
  33. yeast
  34. not needed
  35. frosted glass
  36. a magnet
  37. True
  38. does not work well
  39. translucent
  40. an object blocks light

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