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Shadow and Sundial Experiment Worksheet

Science experiments lesson 27: Shadows and a sundial · Set 521 · 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.🧺 Do we need a mirror for the shadow clock? (a) needed (b) not needed
  3. 3.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) chalk to mark shadows (b) turmeric powder (c) a clock to check (d) a sunny open place
  4. 4.🧺 Which of these is needed for the shadow clock? (a) yeast (b) a mirror (c) a balloon (d) a clock to check
  5. 5.⚖️ Fair test — how does the shadow of a stick change through the day? What do we do with “the same spot”? (a) we keep it the same (b) we measure it (c) we change it
  6. 6.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a clock to check (b) a battery cell (c) a sunny open place (d) a straight stick
  7. 7.True or false: a balloon is not needed for the shadow clock. (a) False (b) True
  8. 8.🔍 Which is the odd one out? (a) clear glass (b) clean water (c) frosted glass (d) air
  9. 9.True or false: a battery cell is not needed for the shadow clock. (a) False (b) True
  10. 10.🧺 Do we need a balloon for the shadow clock? (a) not needed (b) needed
  11. 11.🧺 Which of these is needed for the shadow clock? (a) chalk to mark shadows (b) yeast (c) a magnet (d) a mirror
  12. 12.🔍 Which is the odd one out? (a) a book (b) a steel plate (c) air (d) your hand
  13. 13.🔍 Which is the odd one out? (a) tissue paper (b) butter paper (c) oily paper (d) a steel plate
  14. 14.🧺 Do we need a magnet for the shadow clock? (a) needed (b) not needed
  15. 15.True or false: a mirror is needed for the shadow clock. (a) False (b) True
  16. 16.True or false: clean water is transparent. (a) False (b) True
  17. 17.🔦 Which of these is transparent? (a) butter paper (b) tissue paper (c) clear glass (d) frosted glass
  18. 18.🔦 Is clean water opaque, translucent or transparent? (a) transparent (b) opaque (c) translucent
  19. 19.🛟 While watching shadows outdoors, what must you never do? (a) sit in the shade (b) wear a cap (c) mark with chalk (d) look straight at the Sun
  20. 20.⚖️ 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 measure it (c) we change it
  21. 21.🧺 Do we need yeast for the shadow clock? (a) needed (b) not needed
  22. 22.🔮 Predict: you move a torch closer to your hand. The shadow on the wall gets ___. (a) smaller (b) brighter (c) bigger (d) coloured
  23. 23.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the time of day is what we measure. (a) False (b) True
  24. 24.🔍 Which is the odd one out? (a) clear plastic film (b) tissue paper (c) clean water (d) air
  25. 25.🌍 Why does the stick’s shadow move during the day? (a) the ground slides (b) Earth keeps spinning (c) the stick grows (d) the stick walks
  26. 26.True or false: a steel plate is transparent. (a) False (b) True
  27. 27.🔍 Which is the odd one out? (a) air (b) clean water (c) butter paper (d) clear plastic film
  28. 28.🔦 Is oily paper opaque, translucent or transparent? (a) translucent (b) opaque (c) transparent
  29. 29.🔦 Is clear glass opaque, translucent or transparent? (a) translucent (b) opaque (c) transparent
  30. 30.⚖️ 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) True (b) False
  31. 31.⚖️ 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
  32. 32.🧺 Do we need chalk to mark shadows 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) False (b) True
  34. 34.📘 Why does a shadow form? (a) light bends round it (b) the ground is dark (c) the object is cold (d) an object blocks light
  35. 35.⚖️ 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
  36. 36.🔦 Is butter paper opaque, translucent or transparent? (a) opaque (b) transparent (c) translucent
  37. 37.🧺 Which of these is not needed for the shadow clock? (a) a sunny open place (b) a clock to check (c) a battery cell (d) a straight stick
  38. 38.🧺 Which of these is not needed for the shadow clock? (a) a mirror (b) chalk to mark shadows (c) a clock to check (d) a straight stick
  39. 39.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) chalk to mark shadows (b) yeast (c) a clock to check (d) a sunny open place
  40. 40.🛟 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

Answer key

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

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