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Shadow and Sundial Experiment Worksheet

Science experiments lesson 27: Shadows and a sundial · Set 5 · 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) yeast (b) a straight stick (c) a sunny open place (d) chalk to mark shadows
  2. 2.🌅 In the morning the Sun is in the east. Which way does a shadow point? (a) west (b) north (c) east (d) up
  3. 3.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a straight stick (b) a sunny open place (c) a clock to check (d) a mirror
  4. 4.True or false: a brick is opaque. (a) True (b) False
  5. 5.🧺 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
  6. 6.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a clock to check (b) a battery cell (c) chalk to mark shadows (d) a sunny open place
  7. 7.⚖️ 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) True (b) False
  8. 8.🧺 Do we need a magnet for the shadow clock? (a) not needed (b) needed
  9. 9.📘 Why does a shadow form? (a) the object is cold (b) an object blocks light (c) the ground is dark (d) light bends round it
  10. 10.🔦 Which of these is opaque? (a) clear glass (b) air (c) frosted glass (d) your hand
  11. 11.🔍 Which is the odd one out? (a) a book (b) clear plastic film (c) air (d) clean water
  12. 12.⚖️ 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 stick (d) the time of day
  13. 13.True or false: clear glass is opaque. (a) False (b) True
  14. 14.🔦 Which of these is transparent? (a) frosted glass (b) a wooden board (c) tissue paper (d) clean water
  15. 15.🔍 Which is the odd one out? (a) butter paper (b) clear plastic film (c) air (d) clear glass
  16. 16.🔍 Which is the odd one out? (a) air (b) butter paper (c) frosted glass (d) oily paper
  17. 17.🌞 When is a stick’s shadow the shortest? (a) around noon (b) early morning (c) at night (d) late evening
  18. 18.🧺 Which of these is not needed for the shadow clock? (a) a sunny open place (b) a straight stick (c) turmeric powder (d) chalk to mark shadows
  19. 19.🔦 Which of these is opaque? (a) butter paper (b) air (c) a book (d) clean water
  20. 20.True or false: a clock to check is needed for the shadow clock. (a) False (b) True
  21. 21.True or false: a wooden board is opaque. (a) False (b) True
  22. 22.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a straight stick (b) turmeric powder (c) chalk to mark shadows (d) a clock to check
  23. 23.🔦 Is clear plastic film opaque, translucent or transparent? (a) transparent (b) translucent (c) opaque
  24. 24.🔮 Predict: on a fully cloudy day, the sundial ___. (a) runs faster (b) shows two times (c) does not work well (d) works better
  25. 25.True or false: air is opaque. (a) True (b) False
  26. 26.True or false: a magnet is needed for the shadow clock. (a) False (b) True
  27. 27.🔦 Is a book opaque, translucent or transparent? (a) translucent (b) opaque (c) transparent
  28. 28.🔦 Which of these is translucent? (a) clear glass (b) oily paper (c) a book (d) clean water
  29. 29.⚖️ 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) False (b) True
  30. 30.🔍 Which is the odd one out? (a) frosted glass (b) butter paper (c) oily paper (d) clear glass
  31. 31.⚖️ 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
  32. 32.🛟 What should you wear for a long time in the hot sun? (a) a woollen sweater (b) nothing on your head (c) a raincoat (d) a cap or hat
  33. 33.⚖️ Fair test — how does the shadow of a stick change through the day? Which of these is what we measure? (a) the same stick (b) the same spot (c) the time of day (d) shadow length
  34. 34.🔦 Is air opaque, translucent or transparent? (a) translucent (b) opaque (c) transparent
  35. 35.🧺 Do we need chalk to mark shadows for the shadow clock? (a) not needed (b) needed
  36. 36.🧺 Which of these is needed for the shadow clock? (a) turmeric powder (b) a mirror (c) chalk to mark shadows (d) a magnet
  37. 37.🧺 Do we need yeast for the shadow clock? (a) not needed (b) needed
  38. 38.True or false: clear plastic film is transparent. (a) False (b) True
  39. 39.🔍 Which is the odd one out? (a) oily paper (b) frosted glass (c) a steel plate (d) tissue paper
  40. 40.🔍 Which is the odd one out? (a) clear plastic film (b) your hand (c) clear glass (d) clean water

Answer key

  1. yeast
  2. west
  3. a mirror
  4. True
  5. a magnet
  6. a battery cell
  7. False
  8. not needed
  9. an object blocks light
  10. your hand
  11. a book
  12. the time of day
  13. False
  14. clean water
  15. butter paper
  16. air
  17. around noon
  18. turmeric powder
  19. a book
  20. True
  21. True
  22. turmeric powder
  23. transparent
  24. does not work well
  25. False
  26. False
  27. opaque
  28. oily paper
  29. False
  30. clear glass
  31. False
  32. a cap or hat
  33. shadow length
  34. transparent
  35. needed
  36. chalk to mark shadows
  37. not needed
  38. True
  39. a steel plate
  40. your hand

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