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Shadow and Sundial Experiment Worksheet

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

Answer key

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

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