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Shadow and Sundial Experiment Worksheet

Science experiments lesson 27: Shadows and a sundial · Set 335 · 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.⚖️ 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
  2. 2.📘 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
  3. 3.⚖️ 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) shadow length (c) the stick kept upright
  4. 4.🔍 Which is the odd one out? (a) a book (b) frosted glass (c) butter paper (d) oily paper
  5. 5.🛟 While watching shadows outdoors, what must you never do? (a) sit in the shade (b) mark with chalk (c) wear a cap (d) look straight at the Sun
  6. 6.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) chalk to mark shadows (b) a straight stick (c) a battery cell (d) a clock to check
  7. 7.True or false: oily paper is opaque. (a) True (b) False
  8. 8.🔍 Which is the odd one out? (a) a wooden board (b) a book (c) a steel plate (d) air
  9. 9.🔍 Which is the odd one out? (a) clean water (b) oily paper (c) butter paper (d) tissue paper
  10. 10.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a straight stick (b) turmeric powder (c) a clock to check (d) chalk to mark shadows
  11. 11.True or false: a sunny open place is needed for the shadow clock. (a) False (b) True
  12. 12.🔮 Predict: you move a torch closer to your hand. The shadow on the wall gets ___. (a) bigger (b) smaller (c) brighter (d) coloured
  13. 13.🛟 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
  14. 14.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the stick kept upright is the one thing we change. (a) False (b) True
  15. 15.🕰️ What is a sundial used for? (a) making rainbows (b) telling the time (c) measuring rain (d) weighing things
  16. 16.🔍 Which is the odd one out? (a) air (b) clear plastic film (c) your hand (d) clear glass
  17. 17.🌍 Why does the stick’s shadow move during the day? (a) Earth keeps spinning (b) the stick walks (c) the ground slides (d) the stick grows
  18. 18.True or false: a mirror is needed for the shadow clock. (a) True (b) False
  19. 19.🧺 Which of these is needed for the shadow clock? (a) a magnet (b) a balloon (c) a straight stick (d) a battery cell
  20. 20.⚖️ 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
  21. 21.🧺 Which of these is needed for the shadow clock? (a) a sunny open place (b) a mirror (c) a battery cell (d) yeast
  22. 22.🧺 Do we need turmeric powder for the shadow clock? (a) not needed (b) needed
  23. 23.⚖️ 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
  24. 24.🔍 Which is the odd one out? (a) a brick (b) a book (c) a wooden board (d) clear glass
  25. 25.🧺 Do we need a clock to check for the shadow clock? (a) not needed (b) needed
  26. 26.True or false: turmeric powder is not needed for the shadow clock. (a) False (b) True
  27. 27.⚖️ 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
  28. 28.🔦 Which of these is opaque? (a) butter paper (b) a book (c) air (d) oily paper
  29. 29.🧺 Which of these is not needed for the shadow clock? (a) a sunny open place (b) turmeric powder (c) a straight stick (d) a clock to check
  30. 30.🔦 Is clear plastic film opaque, translucent or transparent? (a) opaque (b) translucent (c) transparent
  31. 31.🔍 Which is the odd one out? (a) clear glass (b) clean water (c) clear plastic film (d) a brick
  32. 32.🔮 Predict: on a fully cloudy day, the sundial ___. (a) runs faster (b) works better (c) does not work well (d) shows two times
  33. 33.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a clock to check (b) a balloon (c) a sunny open place (d) a straight stick
  34. 34.True or false: a magnet is not needed for the shadow clock. (a) False (b) True
  35. 35.🧺 Do we need a sunny open place for the shadow clock? (a) not needed (b) needed
  36. 36.🧺 Do we need a straight stick for the shadow clock? (a) needed (b) not needed
  37. 37.🔦 Which of these is transparent? (a) clean water (b) frosted glass (c) a book (d) a wooden board
  38. 38.🧺 Which of these is not needed for the shadow clock? (a) chalk to mark shadows (b) a sunny open place (c) a clock to check (d) yeast
  39. 39.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: shadow length is what we measure. (a) False (b) True
  40. 40.True or false: a straight stick is needed for the shadow clock. (a) False (b) True

Answer key

  1. we keep it the same
  2. an object blocks light
  3. the stick kept upright
  4. a book
  5. look straight at the Sun
  6. a battery cell
  7. False
  8. air
  9. clean water
  10. turmeric powder
  11. True
  12. bigger
  13. a cap or hat
  14. False
  15. telling the time
  16. your hand
  17. Earth keeps spinning
  18. False
  19. a straight stick
  20. True
  21. a sunny open place
  22. not needed
  23. False
  24. clear glass
  25. needed
  26. True
  27. True
  28. a book
  29. turmeric powder
  30. transparent
  31. a brick
  32. does not work well
  33. a balloon
  34. True
  35. needed
  36. needed
  37. clean water
  38. yeast
  39. True
  40. True

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