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Shadow and Sundial Experiment Worksheet

Science experiments lesson 27: Shadows and a sundial · Set 671 · 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.🧺 Do we need turmeric powder for the shadow clock? (a) not needed (b) needed
  2. 2.🛟 While watching shadows outdoors, what must you never do? (a) look straight at the Sun (b) sit in the shade (c) mark with chalk (d) wear a cap
  3. 3.🛟 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
  4. 4.🔦 Is frosted glass opaque, translucent or transparent? (a) opaque (b) transparent (c) translucent
  5. 5.🧺 Which of these is needed for the shadow clock? (a) a battery cell (b) a magnet (c) a straight stick (d) turmeric powder
  6. 6.🌅 In the morning the Sun is in the east. Which way does a shadow point? (a) east (b) west (c) up (d) north
  7. 7.🧺 Do we need a mirror for the shadow clock? (a) needed (b) not needed
  8. 8.⚖️ Fair test — how does the shadow of a stick change through the day? What do we do with “the same stick”? (a) we change it (b) we keep it the same (c) we measure it
  9. 9.🔦 Which of these is opaque? (a) a brick (b) frosted glass (c) clean water (d) clear glass
  10. 10.True or false: frosted glass is translucent. (a) True (b) False
  11. 11.🔍 Which is the odd one out? (a) frosted glass (b) a wooden board (c) oily paper (d) butter paper
  12. 12.🧺 Do we need a battery cell for the shadow clock? (a) not needed (b) needed
  13. 13.🔦 Is air opaque, translucent or transparent? (a) translucent (b) transparent (c) opaque
  14. 14.🔮 Predict: on a fully cloudy day, the sundial ___. (a) works better (b) does not work well (c) runs faster (d) shows two times
  15. 15.True or false: air is transparent. (a) True (b) False
  16. 16.True or false: a magnet is not needed for the shadow clock. (a) False (b) True
  17. 17.🧺 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 clock to check (d) turmeric powder
  18. 18.🧺 Which of these is not needed for the shadow clock? (a) a clock to check (b) a magnet (c) a straight stick (d) a sunny open place
  19. 19.🔦 Is your hand opaque, translucent or transparent? (a) transparent (b) opaque (c) translucent
  20. 20.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the same stick is kept the same. (a) True (b) False
  21. 21.🔍 Which is the odd one out? (a) clear plastic film (b) a book (c) clean water (d) air
  22. 22.🧺 Do we need a sunny open place for the shadow clock? (a) not needed (b) needed
  23. 23.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a sunny open place (b) a magnet (c) chalk to mark shadows (d) a straight stick
  24. 24.🧺 Do we need yeast for the shadow clock? (a) not needed (b) needed
  25. 25.🔮 Predict: the Sun is low in the evening sky. The stick’s shadow is ___. (a) round (b) short (c) missing (d) long
  26. 26.🔦 Is a wooden board opaque, translucent or transparent? (a) translucent (b) opaque (c) transparent
  27. 27.🔍 Which is the odd one out? (a) oily paper (b) frosted glass (c) tissue paper (d) air
  28. 28.🧺 Do we need chalk to mark shadows for the shadow clock? (a) not needed (b) needed
  29. 29.🔦 Is oily paper opaque, translucent or transparent? (a) transparent (b) translucent (c) opaque
  30. 30.True or false: a battery cell is needed for the shadow clock. (a) True (b) False
  31. 31.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: shadow length is what we measure. (a) True (b) False
  32. 32.🔦 Which of these is opaque? (a) oily paper (b) a book (c) frosted glass (d) clear glass
  33. 33.True or false: a steel plate is transparent. (a) True (b) False
  34. 34.True or false: clear glass is opaque. (a) False (b) True
  35. 35.🔦 Which of these is opaque? (a) a wooden board (b) air (c) clear glass (d) clean water
  36. 36.⚖️ Fair test — how does the shadow of a stick change through the day? What do we do with “the same spot”? (a) we keep it the same (b) we measure it (c) we change it
  37. 37.🧺 Which of these is not needed for the shadow clock? (a) turmeric powder (b) a clock to check (c) chalk to mark shadows (d) a straight stick
  38. 38.⚖️ Fair test — how does the shadow of a stick change through the day? What do we do with “the stick kept upright”? (a) we keep it the same (b) we change it (c) we measure it
  39. 39.🧺 Do we need a clock to check for the shadow clock? (a) not needed (b) needed
  40. 40.True or false: turmeric powder is not needed for the shadow clock. (a) False (b) True

Answer key

  1. not needed
  2. look straight at the Sun
  3. a cap or hat
  4. translucent
  5. a straight stick
  6. west
  7. not needed
  8. we keep it the same
  9. a brick
  10. True
  11. a wooden board
  12. not needed
  13. transparent
  14. does not work well
  15. True
  16. True
  17. turmeric powder
  18. a magnet
  19. opaque
  20. True
  21. a book
  22. needed
  23. a magnet
  24. not needed
  25. long
  26. opaque
  27. air
  28. needed
  29. translucent
  30. False
  31. True
  32. a book
  33. False
  34. False
  35. a wooden board
  36. we keep it the same
  37. turmeric powder
  38. we keep it the same
  39. needed
  40. True

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