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Shadow and Sundial Experiment Worksheet

Science experiments lesson 27: Shadows and a sundial · Set 197 · 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.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a clock to check (b) a straight stick (c) a sunny open place (d) yeast
  2. 2.⚖️ 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
  3. 3.True or false: oily paper is opaque. (a) True (b) False
  4. 4.🔦 Which of these is opaque? (a) clear plastic film (b) air (c) a steel plate (d) frosted glass
  5. 5.True or false: clear glass is transparent. (a) False (b) True
  6. 6.🔍 Which is the odd one out? (a) clear glass (b) a book (c) clear plastic film (d) clean water
  7. 7.🛟 While watching shadows outdoors, what must you never do? (a) wear a cap (b) look straight at the Sun (c) mark with chalk (d) sit in the shade
  8. 8.🛟 What should you wear for a long time in the hot sun? (a) nothing on your head (b) a woollen sweater (c) a cap or hat (d) a raincoat
  9. 9.🌍 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
  10. 10.True or false: turmeric powder is needed for the shadow clock. (a) False (b) True
  11. 11.🧺 Which of these is needed for the shadow clock? (a) a battery cell (b) a sunny open place (c) a mirror (d) yeast
  12. 12.⚖️ 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
  13. 13.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a sunny open place (b) a magnet (c) chalk to mark shadows (d) a clock to check
  14. 14.⚖️ Fair test — how does the shadow of a stick change through the day? Which of these is what we measure? (a) the time of day (b) the stick kept upright (c) shadow length (d) the same spot
  15. 15.🔦 Is air opaque, translucent or transparent? (a) transparent (b) translucent (c) opaque
  16. 16.🧺 Which of these is needed for the shadow clock? (a) a clock to check (b) a battery cell (c) a balloon (d) turmeric powder
  17. 17.True or false: yeast is not needed for the shadow clock. (a) True (b) False
  18. 18.🔍 Which is the odd one out? (a) a book (b) clear glass (c) a wooden board (d) a steel plate
  19. 19.⚖️ 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
  20. 20.🔦 Which of these is opaque? (a) frosted glass (b) your hand (c) clean water (d) clear glass
  21. 21.⚖️ Fair test — how does the shadow of a stick change through the day? Which of these is kept the same? (a) the time of day (b) the same stick (c) shadow length
  22. 22.🔦 Which of these is transparent? (a) a steel plate (b) a book (c) tissue paper (d) clear glass
  23. 23.🧺 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 clock to check
  24. 24.🔍 Which is the odd one out? (a) a steel plate (b) tissue paper (c) a brick (d) a book
  25. 25.True or false: air is opaque. (a) True (b) False
  26. 26.True or false: a straight stick is needed for the shadow clock. (a) True (b) False
  27. 27.🔦 Which of these is translucent? (a) a book (b) clear plastic film (c) clean water (d) butter paper
  28. 28.True or false: a book is translucent. (a) False (b) True
  29. 29.🔮 Predict: you move a torch closer to your hand. The shadow on the wall gets ___. (a) bigger (b) coloured (c) smaller (d) brighter
  30. 30.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the same stick is what we measure. (a) True (b) False
  31. 31.True or false: a book is transparent. (a) True (b) False
  32. 32.📘 Why does a shadow form? (a) the ground is dark (b) the object is cold (c) light bends round it (d) an object blocks light
  33. 33.🔦 Is a steel plate opaque, translucent or transparent? (a) opaque (b) translucent (c) transparent
  34. 34.🧺 Do we need a balloon for the shadow clock? (a) needed (b) not needed
  35. 35.⚖️ Fair test — how does the shadow of a stick change through the day? Which of these is kept the same? (a) the stick kept upright (b) the time of day (c) shadow length
  36. 36.🧺 Do we need chalk to mark shadows for the shadow clock? (a) not needed (b) needed
  37. 37.🔮 Predict: the Sun is low in the evening sky. The stick’s shadow is ___. (a) short (b) round (c) long (d) missing
  38. 38.True or false: a balloon is not needed for the shadow clock. (a) False (b) True
  39. 39.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) chalk to mark shadows (b) a clock to check (c) a balloon (d) a straight stick
  40. 40.🔍 Which is the odd one out? (a) a wooden board (b) clear plastic film (c) your hand (d) a book

Answer key

  1. yeast
  2. True
  3. False
  4. a steel plate
  5. True
  6. a book
  7. look straight at the Sun
  8. a cap or hat
  9. Earth keeps spinning
  10. False
  11. a sunny open place
  12. we keep it the same
  13. a magnet
  14. shadow length
  15. transparent
  16. a clock to check
  17. True
  18. clear glass
  19. False
  20. your hand
  21. the same stick
  22. clear glass
  23. turmeric powder
  24. tissue paper
  25. False
  26. True
  27. butter paper
  28. False
  29. bigger
  30. False
  31. False
  32. an object blocks light
  33. opaque
  34. not needed
  35. the stick kept upright
  36. needed
  37. long
  38. True
  39. a balloon
  40. clear plastic film

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