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Shadow and Sundial Experiment Worksheet

Science experiments lesson 27: Shadows and a sundial · Set 343 · 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.🧺 Do we need turmeric powder for the shadow clock? (a) needed (b) not needed
  2. 2.🧺 Which of these is needed for the shadow clock? (a) a sunny open place (b) turmeric powder (c) a balloon (d) a battery cell
  3. 3.True or false: a clock to check is needed for the shadow clock. (a) False (b) True
  4. 4.True or false: clear plastic film is opaque. (a) False (b) True
  5. 5.🔍 Which is the odd one out? (a) clean water (b) clear glass (c) clear plastic film (d) a book
  6. 6.True or false: a steel plate is translucent. (a) False (b) True
  7. 7.⚖️ 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 stick (b) the stick kept upright (c) the time of day (d) shadow length
  8. 8.🔍 Which is the odd one out? (a) butter paper (b) frosted glass (c) a brick (d) oily paper
  9. 9.True or false: yeast is needed for the shadow clock. (a) False (b) True
  10. 10.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a sunny open place (b) turmeric powder (c) chalk to mark shadows (d) a straight stick
  11. 11.🔮 Predict: the Sun is low in the evening sky. The stick’s shadow is ___. (a) short (b) long (c) round (d) missing
  12. 12.🔍 Which is the odd one out? (a) clean water (b) air (c) your hand (d) clear plastic film
  13. 13.🧺 Which of these is not needed for the shadow clock? (a) chalk to mark shadows (b) a straight stick (c) a clock to check (d) a magnet
  14. 14.True or false: chalk to mark shadows is not needed for the shadow clock. (a) False (b) True
  15. 15.🧺 Do we need yeast for the shadow clock? (a) needed (b) not needed
  16. 16.🔦 Is a book opaque, translucent or transparent? (a) transparent (b) opaque (c) translucent
  17. 17.True or false: clear glass is transparent. (a) False (b) True
  18. 18.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a battery cell (b) a sunny open place (c) chalk to mark shadows (d) a straight stick
  19. 19.🔦 Is oily paper opaque, translucent or transparent? (a) transparent (b) opaque (c) translucent
  20. 20.True or false: clear glass is opaque. (a) False (b) True
  21. 21.True or false: a balloon is not needed for the shadow clock. (a) True (b) False
  22. 22.🔦 Which of these is translucent? (a) your hand (b) oily paper (c) a steel plate (d) a brick
  23. 23.🛟 What should you wear for a long time in the hot sun? (a) a woollen sweater (b) a raincoat (c) a cap or hat (d) nothing on your head
  24. 24.True or false: turmeric powder is not needed for the shadow clock. (a) False (b) True
  25. 25.🔦 Is your hand opaque, translucent or transparent? (a) opaque (b) translucent (c) transparent
  26. 26.True or false: a straight stick is not needed for the shadow clock. (a) True (b) False
  27. 27.🔦 Which of these is translucent? (a) clean water (b) frosted glass (c) a book (d) a brick
  28. 28.🌞 When is a stick’s shadow the shortest? (a) around noon (b) late evening (c) early morning (d) at night
  29. 29.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a clock to check (b) a sunny open place (c) a balloon (d) a straight stick
  30. 30.📘 Why does a shadow form? (a) the ground is dark (b) an object blocks light (c) light bends round it (d) the object is cold
  31. 31.🧺 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) chalk to mark shadows
  32. 32.⚖️ 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
  33. 33.🧺 Which of these is needed for the shadow clock? (a) a mirror (b) a battery cell (c) a balloon (d) chalk to mark shadows
  34. 34.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a mirror (b) a sunny open place (c) a clock to check (d) a straight stick
  35. 35.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the same spot is what we measure. (a) False (b) True
  36. 36.🧺 Which of these is needed for the shadow clock? (a) a mirror (b) yeast (c) a straight stick (d) turmeric powder
  37. 37.🔦 Is butter paper opaque, translucent or transparent? (a) translucent (b) opaque (c) transparent
  38. 38.🧺 Do we need a balloon for the shadow clock? (a) not needed (b) needed
  39. 39.🛟 While watching shadows outdoors, what must you never do? (a) wear a cap (b) sit in the shade (c) mark with chalk (d) look straight at the Sun
  40. 40.🧺 Which of these is not needed for the shadow clock? (a) a sunny open place (b) a straight stick (c) a battery cell (d) chalk to mark shadows

Answer key

  1. not needed
  2. a sunny open place
  3. True
  4. False
  5. a book
  6. False
  7. the time of day
  8. a brick
  9. False
  10. turmeric powder
  11. long
  12. your hand
  13. a magnet
  14. False
  15. not needed
  16. opaque
  17. True
  18. a battery cell
  19. translucent
  20. False
  21. True
  22. oily paper
  23. a cap or hat
  24. True
  25. opaque
  26. False
  27. frosted glass
  28. around noon
  29. a balloon
  30. an object blocks light
  31. a magnet
  32. we keep it the same
  33. chalk to mark shadows
  34. a mirror
  35. False
  36. a straight stick
  37. translucent
  38. not needed
  39. look straight at the Sun
  40. a battery cell

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