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Shadow and Sundial Experiment Worksheet

Science experiments lesson 27: Shadows and a sundial · Set 331 · 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.

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  1. 1.🔍 Which is the odd one out? (a) a brick (b) a wooden board (c) oily paper (d) a book
  2. 2.🧺 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 balloon (d) chalk to mark shadows
  3. 3.🔦 Is air opaque, translucent or transparent? (a) opaque (b) transparent (c) translucent
  4. 4.🧺 Which of these is not needed for the shadow clock? (a) yeast (b) chalk to mark shadows (c) a straight stick (d) a clock to check
  5. 5.🔍 Which is the odd one out? (a) a book (b) tissue paper (c) a wooden board (d) a steel plate
  6. 6.🌅 In the morning the Sun is in the east. Which way does a shadow point? (a) north (b) west (c) up (d) east
  7. 7.🔦 Is frosted glass opaque, translucent or transparent? (a) opaque (b) translucent (c) transparent
  8. 8.🌍 Why does the stick’s shadow move during the day? (a) the stick grows (b) Earth keeps spinning (c) the ground slides (d) the stick walks
  9. 9.⚖️ 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 same stick (c) the time of day (d) the stick kept upright
  10. 10.🔦 Which of these is translucent? (a) clear glass (b) tissue paper (c) a wooden board (d) air
  11. 11.🧺 Which of these is needed for the shadow clock? (a) a balloon (b) turmeric powder (c) yeast (d) a clock to check
  12. 12.🔦 Is clear plastic film opaque, translucent or transparent? (a) translucent (b) opaque (c) transparent
  13. 13.⚖️ 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
  14. 14.🔍 Which is the odd one out? (a) your hand (b) butter paper (c) a steel plate (d) a brick
  15. 15.🔍 Which is the odd one out? (a) frosted glass (b) tissue paper (c) a wooden board (d) butter paper
  16. 16.🔦 Is your hand opaque, translucent or transparent? (a) transparent (b) opaque (c) translucent
  17. 17.🧺 Do we need a magnet for the shadow clock? (a) not needed (b) needed
  18. 18.True or false: yeast is needed for the shadow clock. (a) False (b) True
  19. 19.🔍 Which is the odd one out? (a) oily paper (b) clear glass (c) tissue paper (d) butter paper
  20. 20.True or false: a clock to check is needed for the shadow clock. (a) True (b) False
  21. 21.True or false: a balloon is needed for the shadow clock. (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) a clock to check (c) a magnet (d) a sunny open place
  23. 23.⚖️ 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
  24. 24.⚖️ 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
  25. 25.🔦 Is a wooden board opaque, translucent or transparent? (a) translucent (b) opaque (c) transparent
  26. 26.🧺 Do we need a balloon for the shadow clock? (a) needed (b) not needed
  27. 27.🛟 What should you wear for a long time in the hot sun? (a) a cap or hat (b) nothing on your head (c) a raincoat (d) a woollen sweater
  28. 28.🔮 Predict: the Sun is low in the evening sky. The stick’s shadow is ___. (a) missing (b) long (c) short (d) round
  29. 29.🔦 Which of these is transparent? (a) a wooden board (b) air (c) a book (d) a steel plate
  30. 30.True or false: a battery cell is needed for the shadow clock. (a) True (b) False
  31. 31.🌞 When is a stick’s shadow the shortest? (a) early morning (b) around noon (c) at night (d) late evening
  32. 32.True or false: air is translucent. (a) True (b) False
  33. 33.🛟 While watching shadows outdoors, what must you never do? (a) mark with chalk (b) sit in the shade (c) look straight at the Sun (d) wear a cap
  34. 34.🔦 Which of these is opaque? (a) a brick (b) butter paper (c) frosted glass (d) clear plastic film
  35. 35.🧺 Which of these is needed for the shadow clock? (a) a battery cell (b) a balloon (c) turmeric powder (d) a straight stick
  36. 36.True or false: turmeric powder is not needed for the shadow clock. (a) True (b) False
  37. 37.True or false: a sunny open place is not needed for the shadow clock. (a) False (b) True
  38. 38.⚖️ 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) False (b) True
  39. 39.🔮 Predict: on a fully cloudy day, the sundial ___. (a) works better (b) shows two times (c) does not work well (d) runs faster
  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) shadow length (b) the time of day (c) the stick kept upright (d) the same spot

Answer key

  1. oily paper
  2. a balloon
  3. transparent
  4. yeast
  5. tissue paper
  6. west
  7. translucent
  8. Earth keeps spinning
  9. shadow length
  10. tissue paper
  11. a clock to check
  12. transparent
  13. the stick kept upright
  14. butter paper
  15. a wooden board
  16. opaque
  17. not needed
  18. False
  19. clear glass
  20. True
  21. False
  22. a magnet
  23. we measure it
  24. we change it
  25. opaque
  26. not needed
  27. a cap or hat
  28. long
  29. air
  30. False
  31. around noon
  32. False
  33. look straight at the Sun
  34. a brick
  35. a straight stick
  36. True
  37. False
  38. True
  39. does not work well
  40. the time of day

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