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Shadow and Sundial Experiment Worksheet

Science experiments lesson 27: Shadows and a sundial · Set 693 · 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.🔍 Which is the odd one out? (a) clean water (b) your hand (c) a brick (d) a wooden board
  2. 2.⚖️ 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
  3. 3.True or false: a straight stick is needed for the shadow clock. (a) False (b) True
  4. 4.🔦 Which of these is opaque? (a) clear glass (b) butter paper (c) a brick (d) oily paper
  5. 5.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: shadow length is the one thing we change. (a) True (b) False
  6. 6.🔍 Which is the odd one out? (a) tissue paper (b) butter paper (c) clear plastic film (d) frosted glass
  7. 7.🔦 Which of these is opaque? (a) your hand (b) air (c) clean water (d) oily paper
  8. 8.🛟 What should you wear for a long time in the hot sun? (a) nothing on your head (b) a cap or hat (c) a woollen sweater (d) a raincoat
  9. 9.🔦 Is clean water opaque, translucent or transparent? (a) translucent (b) opaque (c) transparent
  10. 10.True or false: a battery cell is not needed for the shadow clock. (a) True (b) False
  11. 11.🌞 When is a stick’s shadow the shortest? (a) late evening (b) at night (c) early morning (d) around noon
  12. 12.🔦 Is a steel plate opaque, translucent or transparent? (a) transparent (b) opaque (c) translucent
  13. 13.🕰️ What is a sundial used for? (a) measuring rain (b) telling the time (c) making rainbows (d) weighing things
  14. 14.True or false: a book is translucent. (a) True (b) False
  15. 15.🛟 While watching shadows outdoors, what must you never do? (a) sit in the shade (b) mark with chalk (c) look straight at the Sun (d) wear a cap
  16. 16.🔦 Which of these is opaque? (a) oily paper (b) clear plastic film (c) clean water (d) a book
  17. 17.⚖️ Fair test — how does the shadow of a stick change through the day? Which of these is the one thing we change? (a) the time of day (b) the same spot (c) the same stick (d) shadow length
  18. 18.⚖️ Fair test — how does the shadow of a stick change through the day? Which of these is what we measure? (a) the same spot (b) the time of day (c) the same stick (d) shadow length
  19. 19.🧺 Do we need chalk to mark shadows for the shadow clock? (a) not needed (b) needed
  20. 20.🔍 Which is the odd one out? (a) frosted glass (b) clear plastic film (c) clear glass (d) air
  21. 21.⚖️ 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) True (b) False
  22. 22.⚖️ Fair test — how does the shadow of a stick change through the day? Which of these is kept the same? (a) shadow length (b) the time of day (c) the same stick
  23. 23.🔍 Which is the odd one out? (a) air (b) clear glass (c) butter paper (d) clear plastic film
  24. 24.🧺 Which of these is needed for the shadow clock? (a) a battery cell (b) a balloon (c) a magnet (d) a sunny open place
  25. 25.True or false: a sunny open place is not needed for the shadow clock. (a) True (b) False
  26. 26.True or false: frosted glass is translucent. (a) True (b) False
  27. 27.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a clock to check (b) chalk to mark shadows (c) a sunny open place (d) a battery cell
  28. 28.True or false: a sunny open place is needed for the shadow clock. (a) True (b) False
  29. 29.🔦 Which of these is translucent? (a) a wooden board (b) frosted glass (c) clear plastic film (d) clean water
  30. 30.🧺 Which of these is needed for the shadow clock? (a) a mirror (b) a battery cell (c) turmeric powder (d) a clock to check
  31. 31.🧺 Do we need a balloon for the shadow clock? (a) needed (b) not needed
  32. 32.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a straight stick (b) a clock to check (c) chalk to mark shadows (d) yeast
  33. 33.🧺 Do we need a sunny open place for the shadow clock? (a) not needed (b) needed
  34. 34.🌍 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
  35. 35.🔍 Which is the odd one out? (a) a book (b) tissue paper (c) butter paper (d) oily paper
  36. 36.🧺 Do we need turmeric powder for the shadow clock? (a) not needed (b) needed
  37. 37.🔮 Predict: you move a torch closer to your hand. The shadow on the wall gets ___. (a) brighter (b) coloured (c) smaller (d) bigger
  38. 38.📘 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
  39. 39.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a sunny open place (b) a balloon (c) chalk to mark shadows (d) a clock to check
  40. 40.🧺 Which of these is needed for the shadow clock? (a) a battery cell (b) yeast (c) a straight stick (d) a magnet

Answer key

  1. clean water
  2. True
  3. True
  4. a brick
  5. False
  6. clear plastic film
  7. your hand
  8. a cap or hat
  9. transparent
  10. True
  11. around noon
  12. opaque
  13. telling the time
  14. False
  15. look straight at the Sun
  16. a book
  17. the time of day
  18. shadow length
  19. needed
  20. frosted glass
  21. False
  22. the same stick
  23. butter paper
  24. a sunny open place
  25. False
  26. True
  27. a battery cell
  28. True
  29. frosted glass
  30. a clock to check
  31. not needed
  32. yeast
  33. needed
  34. Earth keeps spinning
  35. a book
  36. not needed
  37. bigger
  38. an object blocks light
  39. a balloon
  40. a straight stick

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