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Shadow and Sundial Experiment Worksheet

Science experiments lesson 27: Shadows and a sundial · Set 695 · 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.

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

Answer key

  1. look straight at the Sun
  2. a steel plate
  3. True
  4. needed
  5. we keep it the same
  6. turmeric powder
  7. transparent
  8. we change it
  9. not needed
  10. a clock to check
  11. clear plastic film
  12. True
  13. a wooden board
  14. False
  15. a balloon
  16. around noon
  17. False
  18. needed
  19. True
  20. False
  21. shadow length
  22. not needed
  23. True
  24. the stick kept upright
  25. chalk to mark shadows
  26. True
  27. True
  28. a steel plate
  29. yeast
  30. False
  31. False
  32. an object blocks light
  33. telling the time
  34. True
  35. False
  36. a cap or hat
  37. True
  38. True
  39. frosted glass
  40. True

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