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Shadow and Sundial Experiment Worksheet

Science experiments lesson 27: Shadows and a sundial · Set 675 · 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 a straight stick for the shadow clock? (a) not needed (b) needed
  2. 2.🔦 Which of these is translucent? (a) a steel plate (b) a brick (c) clear glass (d) frosted glass
  3. 3.⚖️ Fair test — how does the shadow of a stick change through the day? What do we do with “the stick kept upright”? (a) we change it (b) we measure it (c) we keep it the same
  4. 4.🧺 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
  5. 5.⚖️ Fair test — how does the shadow of a stick change through the day? What do we do with “the same spot”? (a) we keep it the same (b) we change it (c) we measure it
  6. 6.⚖️ Fair test — how does the shadow of a stick change through the day? Which of these is the one thing we change? (a) the stick kept upright (b) the same stick (c) the same spot (d) the time of day
  7. 7.🔦 Which of these is transparent? (a) oily paper (b) frosted glass (c) a brick (d) clear glass
  8. 8.True or false: your hand is opaque. (a) False (b) True
  9. 9.⚖️ 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
  10. 10.🧺 Which of these is not needed for the shadow clock? (a) a straight stick (b) turmeric powder (c) a clock to check (d) a sunny open place
  11. 11.🧺 Do we need chalk to mark shadows for the shadow clock? (a) not needed (b) needed
  12. 12.True or false: yeast is needed for the shadow clock. (a) False (b) True
  13. 13.🔦 Which of these is opaque? (a) clear plastic film (b) butter paper (c) a wooden board (d) air
  14. 14.🧺 Do we need a mirror for the shadow clock? (a) needed (b) not needed
  15. 15.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a magnet (b) a clock to check (c) chalk to mark shadows (d) a straight stick
  16. 16.🛟 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
  17. 17.🔦 Is your hand opaque, translucent or transparent? (a) opaque (b) transparent (c) translucent
  18. 18.🔦 Is clean water opaque, translucent or transparent? (a) opaque (b) transparent (c) translucent
  19. 19.⚖️ 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
  20. 20.🧺 Do we need turmeric powder for the shadow clock? (a) needed (b) not needed
  21. 21.🔦 Which of these is opaque? (a) a book (b) clean water (c) oily paper (d) butter paper
  22. 22.True or false: a book is opaque. (a) False (b) True
  23. 23.🔦 Which of these is transparent? (a) your hand (b) a steel plate (c) butter paper (d) air
  24. 24.🔦 Which of these is opaque? (a) your hand (b) oily paper (c) clean water (d) butter paper
  25. 25.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the same stick is what we measure. (a) False (b) True
  26. 26.🧺 Which of these is not needed for the shadow clock? (a) a clock to check (b) chalk to mark shadows (c) a straight stick (d) yeast
  27. 27.True or false: a steel plate is translucent. (a) True (b) False
  28. 28.⚖️ 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 same spot (c) the time of day
  29. 29.🕰️ What is a sundial used for? (a) weighing things (b) making rainbows (c) telling the time (d) measuring rain
  30. 30.🔦 Is a book opaque, translucent or transparent? (a) translucent (b) opaque (c) transparent
  31. 31.🔍 Which is the odd one out? (a) clear plastic film (b) a brick (c) clean water (d) air
  32. 32.🔦 Which of these is transparent? (a) oily paper (b) a brick (c) a wooden board (d) clear plastic film
  33. 33.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a clock to check (b) yeast (c) chalk to mark shadows (d) a straight stick
  34. 34.🧺 Do we need a balloon for the shadow clock? (a) not needed (b) needed
  35. 35.⚖️ 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
  36. 36.🛟 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
  37. 37.⚖️ 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
  38. 38.⚖️ 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
  39. 39.🔍 Which is the odd one out? (a) your hand (b) a book (c) a steel plate (d) butter paper
  40. 40.🔍 Which is the odd one out? (a) a book (b) butter paper (c) frosted glass (d) tissue paper

Answer key

  1. needed
  2. frosted glass
  3. we keep it the same
  4. a battery cell
  5. we keep it the same
  6. the time of day
  7. clear glass
  8. True
  9. False
  10. turmeric powder
  11. needed
  12. False
  13. a wooden board
  14. not needed
  15. a magnet
  16. look straight at the Sun
  17. opaque
  18. transparent
  19. True
  20. not needed
  21. a book
  22. True
  23. air
  24. your hand
  25. False
  26. yeast
  27. False
  28. the same spot
  29. telling the time
  30. opaque
  31. a brick
  32. clear plastic film
  33. yeast
  34. not needed
  35. False
  36. a cap or hat
  37. we keep it the same
  38. True
  39. butter paper
  40. a book

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