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Shadow and Sundial Experiment Worksheet

Science experiments lesson 27: Shadows and a sundial · Set 841 · 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.🧺 Do we need yeast for the shadow clock? (a) not needed (b) needed
  2. 2.🔦 Which of these is opaque? (a) frosted glass (b) air (c) a book (d) clean water
  3. 3.🔦 Which of these is opaque? (a) your hand (b) butter paper (c) frosted glass (d) tissue paper
  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? Which of these is the one thing we change? (a) the same stick (b) the stick kept upright (c) shadow length (d) the time of day
  6. 6.🔦 Is frosted glass opaque, translucent or transparent? (a) transparent (b) translucent (c) opaque
  7. 7.🔍 Which is the odd one out? (a) clear plastic film (b) clear glass (c) air (d) oily paper
  8. 8.True or false: turmeric powder is not needed for the shadow clock. (a) False (b) True
  9. 9.⚖️ 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 same stick (c) the time of day (d) the stick kept upright
  10. 10.True or false: your hand is opaque. (a) True (b) False
  11. 11.🛟 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
  12. 12.🔦 Which of these is transparent? (a) a steel plate (b) clean water (c) a brick (d) frosted glass
  13. 13.🧺 Which of these is not needed for the shadow clock? (a) a clock to check (b) chalk to mark shadows (c) a balloon (d) a sunny open place
  14. 14.True or false: a book is opaque. (a) True (b) False
  15. 15.⚖️ 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 spot (c) shadow length
  16. 16.🔦 Is tissue paper opaque, translucent or transparent? (a) translucent (b) opaque (c) transparent
  17. 17.🛟 While watching shadows outdoors, what must you never do? (a) sit in the shade (b) look straight at the Sun (c) mark with chalk (d) wear a cap
  18. 18.🔍 Which is the odd one out? (a) air (b) clear plastic film (c) clear glass (d) butter paper
  19. 19.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) chalk to mark shadows (b) yeast (c) a straight stick (d) a clock to check
  20. 20.🔦 Is clear plastic film opaque, translucent or transparent? (a) opaque (b) translucent (c) transparent
  21. 21.True or false: a brick is transparent. (a) True (b) False
  22. 22.🧺 Do we need a battery cell for the shadow clock? (a) needed (b) not needed
  23. 23.🧺 Do we need a sunny open place for the shadow clock? (a) not needed (b) needed
  24. 24.True or false: a sunny open place is needed for the shadow clock. (a) False (b) True
  25. 25.🔍 Which is the odd one out? (a) oily paper (b) frosted glass (c) butter paper (d) a book
  26. 26.🧺 Which of these is not needed for the shadow clock? (a) yeast (b) chalk to mark shadows (c) a sunny open place (d) a straight stick
  27. 27.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) chalk to mark shadows (b) a sunny open place (c) a clock to check (d) a mirror
  28. 28.🔦 Which of these is opaque? (a) butter paper (b) a steel plate (c) clean water (d) clear glass
  29. 29.🕰️ What is a sundial used for? (a) telling the time (b) weighing things (c) making rainbows (d) measuring rain
  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? What do we do with “the same stick”? (a) we measure it (b) we change it (c) we keep it the same
  32. 32.🔦 Which of these is transparent? (a) frosted glass (b) clear plastic film (c) tissue paper (d) a book
  33. 33.True or false: a sunny open place is not needed for the shadow clock. (a) False (b) True
  34. 34.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a clock to check (b) turmeric powder (c) a straight stick (d) chalk to mark shadows
  35. 35.⚖️ Fair test — how does the shadow of a stick change through the day? What do we do with “shadow length”? (a) we change it (b) we measure it (c) we keep it the same
  36. 36.🔦 Is clean water opaque, translucent or transparent? (a) transparent (b) opaque (c) translucent
  37. 37.🌅 In the morning the Sun is in the east. Which way does a shadow point? (a) up (b) west (c) east (d) north
  38. 38.True or false: a battery cell is not needed for the shadow clock. (a) False (b) True
  39. 39.⚖️ 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 measure it (c) we change it
  40. 40.🔍 Which is the odd one out? (a) butter paper (b) a wooden board (c) frosted glass (d) tissue paper

Answer key

  1. not needed
  2. a book
  3. your hand
  4. needed
  5. the time of day
  6. translucent
  7. oily paper
  8. True
  9. shadow length
  10. True
  11. a cap or hat
  12. clean water
  13. a balloon
  14. True
  15. the same spot
  16. translucent
  17. look straight at the Sun
  18. butter paper
  19. yeast
  20. transparent
  21. False
  22. not needed
  23. needed
  24. True
  25. a book
  26. yeast
  27. a mirror
  28. a steel plate
  29. telling the time
  30. True
  31. we keep it the same
  32. clear plastic film
  33. False
  34. turmeric powder
  35. we measure it
  36. transparent
  37. west
  38. True
  39. we change it
  40. a wooden board

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