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Shadow and Sundial Experiment Worksheet

Science experiments lesson 27: Shadows and a sundial · Set 473 · 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 steel plate (c) tissue paper (d) a book
  2. 2.🔦 Is oily paper opaque, translucent or transparent? (a) opaque (b) translucent (c) transparent
  3. 3.⚖️ 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
  4. 4.🧺 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
  5. 5.🧺 Which of these is needed for the shadow clock? (a) a balloon (b) a magnet (c) a clock to check (d) yeast
  6. 6.🧺 Do we need a battery cell for the shadow clock? (a) needed (b) not needed
  7. 7.True or false: a magnet is not needed for the shadow clock. (a) True (b) False
  8. 8.🧺 Which of these is not needed for the shadow clock? (a) a clock to check (b) a sunny open place (c) chalk to mark shadows (d) a mirror
  9. 9.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) chalk to mark shadows (b) a straight stick (c) turmeric powder (d) a clock to check
  10. 10.🧺 Which of these is not needed for the shadow clock? (a) a straight stick (b) a sunny open place (c) chalk to mark shadows (d) turmeric powder
  11. 11.🧺 Which of these is needed for the shadow clock? (a) a mirror (b) turmeric powder (c) a sunny open place (d) a magnet
  12. 12.🛟 While watching shadows outdoors, what must you never do? (a) wear a cap (b) look straight at the Sun (c) sit in the shade (d) mark with chalk
  13. 13.🔮 Predict: the Sun is low in the evening sky. The stick’s shadow is ___. (a) long (b) missing (c) round (d) short
  14. 14.🛟 What should you wear for a long time in the hot sun? (a) a raincoat (b) a woollen sweater (c) a cap or hat (d) nothing on your head
  15. 15.🔦 Is clean water opaque, translucent or transparent? (a) translucent (b) opaque (c) transparent
  16. 16.🔦 Is tissue paper opaque, translucent or transparent? (a) opaque (b) translucent (c) transparent
  17. 17.⚖️ Fair test — how does the shadow of a stick change through the day? Which of these is what we measure? (a) the stick kept upright (b) the same spot (c) shadow length (d) the time of day
  18. 18.🔦 Which of these is translucent? (a) clear plastic film (b) butter paper (c) clean water (d) a book
  19. 19.📘 Why does a shadow form? (a) the ground is dark (b) light bends round it (c) the object is cold (d) an object blocks light
  20. 20.🔦 Which of these is transparent? (a) butter paper (b) tissue paper (c) a steel plate (d) clear glass
  21. 21.⚖️ Fair test — how does the shadow of a stick change through the day? What do we do with “the same stick”? (a) we keep it the same (b) we measure it (c) we change it
  22. 22.True or false: a straight stick is needed for the shadow clock. (a) True (b) False
  23. 23.True or false: a sunny open place is needed for the shadow clock. (a) True (b) False
  24. 24.True or false: your hand is translucent. (a) False (b) True
  25. 25.🔮 Predict: on a fully cloudy day, the sundial ___. (a) does not work well (b) shows two times (c) works better (d) runs faster
  26. 26.True or false: turmeric powder is needed for the shadow clock. (a) True (b) False
  27. 27.True or false: a battery cell is needed for the shadow clock. (a) True (b) False
  28. 28.🔦 Which of these is transparent? (a) butter paper (b) a steel plate (c) a brick (d) air
  29. 29.🔦 Is a wooden board opaque, translucent or transparent? (a) translucent (b) transparent (c) opaque
  30. 30.True or false: a balloon is needed for the shadow clock. (a) True (b) False
  31. 31.True or false: chalk to mark shadows is needed for the shadow clock. (a) False (b) True
  32. 32.🧺 Do we need a balloon for the shadow clock? (a) needed (b) not needed
  33. 33.⚖️ 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
  34. 34.True or false: a mirror is needed for the shadow clock. (a) False (b) True
  35. 35.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a sunny open place (b) a magnet (c) a straight stick (d) chalk to mark shadows
  36. 36.🔍 Which is the odd one out? (a) a brick (b) your hand (c) a steel plate (d) butter paper
  37. 37.⚖️ 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
  38. 38.True or false: a sunny open place is not needed for the shadow clock. (a) False (b) True
  39. 39.True or false: a battery cell is not needed for the shadow clock. (a) True (b) False
  40. 40.🔦 Which of these is opaque? (a) frosted glass (b) oily paper (c) a wooden board (d) clear glass

Answer key

  1. tissue paper
  2. translucent
  3. True
  4. a mirror
  5. a clock to check
  6. not needed
  7. True
  8. a mirror
  9. turmeric powder
  10. turmeric powder
  11. a sunny open place
  12. look straight at the Sun
  13. long
  14. a cap or hat
  15. transparent
  16. translucent
  17. shadow length
  18. butter paper
  19. an object blocks light
  20. clear glass
  21. we keep it the same
  22. True
  23. True
  24. False
  25. does not work well
  26. False
  27. False
  28. air
  29. opaque
  30. False
  31. True
  32. not needed
  33. we keep it the same
  34. False
  35. a magnet
  36. butter paper
  37. False
  38. False
  39. True
  40. a wooden board

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