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Shadow and Sundial Experiment Worksheet

Science experiments lesson 27: Shadows and a sundial · Set 959 · 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: butter paper is transparent. (a) False (b) True
  2. 2.⚖️ Fair test — how does the shadow of a stick change through the day? What do we do with “shadow length”? (a) we keep it the same (b) we change it (c) we measure it
  3. 3.🛟 What should you wear for a long time in the hot sun? (a) a raincoat (b) a woollen sweater (c) nothing on your head (d) a cap or hat
  4. 4.⚖️ 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
  5. 5.🛟 While watching shadows outdoors, what must you never do? (a) wear a cap (b) mark with chalk (c) look straight at the Sun (d) sit in the shade
  6. 6.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) chalk to mark shadows (b) a straight stick (c) a mirror (d) a clock to check
  7. 7.🔦 Is air opaque, translucent or transparent? (a) translucent (b) transparent (c) opaque
  8. 8.🧺 Do we need a magnet for the shadow clock? (a) needed (b) not needed
  9. 9.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a clock to check (b) yeast (c) a straight stick (d) chalk to mark shadows
  10. 10.🧺 Do we need a sunny open place for the shadow clock? (a) needed (b) not needed
  11. 11.⚖️ Fair test — how does the shadow of a stick change through the day? What do we do with “the same spot”? (a) we change it (b) we measure it (c) we keep it the same
  12. 12.🔦 Is a brick opaque, translucent or transparent? (a) opaque (b) translucent (c) transparent
  13. 13.True or false: a battery cell is needed for the shadow clock. (a) False (b) True
  14. 14.🧺 Do we need a straight stick for the shadow clock? (a) not needed (b) needed
  15. 15.True or false: yeast is needed for the shadow clock. (a) False (b) True
  16. 16.True or false: a straight stick is not needed for the shadow clock. (a) True (b) False
  17. 17.🌅 In the morning the Sun is in the east. Which way does a shadow point? (a) west (b) north (c) up (d) east
  18. 18.🔮 Predict: on a fully cloudy day, the sundial ___. (a) works better (b) runs faster (c) does not work well (d) shows two times
  19. 19.🔦 Which of these is translucent? (a) your hand (b) a steel plate (c) a wooden board (d) tissue paper
  20. 20.🧺 Which of these is needed for the shadow clock? (a) turmeric powder (b) a magnet (c) a balloon (d) a straight stick
  21. 21.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a straight stick (b) chalk to mark shadows (c) a battery cell (d) a clock to check
  22. 22.🧺 Which of these is not needed for the shadow clock? (a) turmeric powder (b) a sunny open place (c) chalk to mark shadows (d) a straight stick
  23. 23.🧺 Which of these is needed for the shadow clock? (a) a magnet (b) a mirror (c) a clock to check (d) turmeric powder
  24. 24.🔍 Which is the odd one out? (a) a book (b) clean water (c) a steel plate (d) your hand
  25. 25.🔦 Is butter paper opaque, translucent or transparent? (a) transparent (b) opaque (c) translucent
  26. 26.True or false: clean water is opaque. (a) False (b) True
  27. 27.🔍 Which is the odd one out? (a) oily paper (b) tissue paper (c) your hand (d) frosted glass
  28. 28.🧺 Do we need chalk to mark shadows for the shadow clock? (a) needed (b) not needed
  29. 29.True or false: a sunny open place is needed for the shadow clock. (a) False (b) True
  30. 30.⚖️ Fair test — how does the shadow of a stick change through the day? Which of these is the one thing we change? (a) the same spot (b) shadow length (c) the time of day (d) the same stick
  31. 31.True or false: a wooden board is opaque. (a) True (b) False
  32. 32.🧺 Do we need a balloon for the shadow clock? (a) not needed (b) needed
  33. 33.⚖️ 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) True (b) False
  34. 34.⚖️ Fair test — how does the shadow of a stick change through the day? What do we do with “the same stick”? (a) we measure it (b) we change it (c) we keep it the same
  35. 35.🧺 Which of these is not needed for the shadow clock? (a) a straight stick (b) yeast (c) a sunny open place (d) a clock to check
  36. 36.🧺 Which of these is needed for the shadow clock? (a) a balloon (b) a mirror (c) a battery cell (d) a sunny open place
  37. 37.🔦 Is a steel plate opaque, translucent or transparent? (a) opaque (b) transparent (c) translucent
  38. 38.True or false: clean water is translucent. (a) False (b) True
  39. 39.📘 Why does a shadow form? (a) the object is cold (b) an object blocks light (c) light bends round it (d) the ground is dark
  40. 40.🔍 Which is the odd one out? (a) a wooden board (b) your hand (c) a brick (d) clear plastic film

Answer key

  1. False
  2. we measure it
  3. a cap or hat
  4. True
  5. look straight at the Sun
  6. a mirror
  7. transparent
  8. not needed
  9. yeast
  10. needed
  11. we keep it the same
  12. opaque
  13. False
  14. needed
  15. False
  16. False
  17. west
  18. does not work well
  19. tissue paper
  20. a straight stick
  21. a battery cell
  22. turmeric powder
  23. a clock to check
  24. clean water
  25. translucent
  26. False
  27. your hand
  28. needed
  29. True
  30. the time of day
  31. True
  32. not needed
  33. True
  34. we keep it the same
  35. yeast
  36. a sunny open place
  37. opaque
  38. False
  39. an object blocks light
  40. clear plastic film

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