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Shadow and Sundial Experiment Worksheet

Science experiments lesson 27: Shadows and a sundial · Set 456 · 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.🔦 Is clean water opaque, translucent or transparent? (a) translucent (b) opaque (c) transparent
  2. 2.⚖️ Fair test — how does the shadow of a stick change through the day? Which of these is the one thing we change? (a) shadow length (b) the time of day (c) the same stick (d) the stick kept upright
  3. 3.🧺 Which of these is needed for the shadow clock? (a) a battery cell (b) turmeric powder (c) a balloon (d) a clock to check
  4. 4.🛟 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
  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 change it (b) we keep it the same (c) we measure it
  6. 6.🌍 Why does the stick’s shadow move during the day? (a) Earth keeps spinning (b) the stick walks (c) the stick grows (d) the ground slides
  7. 7.🧺 Do we need a magnet for the shadow clock? (a) needed (b) not needed
  8. 8.🧺 Do we need a balloon for the shadow clock? (a) not needed (b) needed
  9. 9.True or false: a wooden board is transparent. (a) True (b) False
  10. 10.⚖️ 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
  11. 11.True or false: chalk to mark shadows is needed for the shadow clock. (a) False (b) True
  12. 12.True or false: oily paper is transparent. (a) True (b) False
  13. 13.⚖️ 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
  14. 14.🔦 Which of these is opaque? (a) tissue paper (b) a wooden board (c) clear glass (d) air
  15. 15.🔦 Which of these is transparent? (a) oily paper (b) a book (c) air (d) butter paper
  16. 16.🧺 Do we need a straight stick for the shadow clock? (a) not needed (b) needed
  17. 17.🔦 Which of these is translucent? (a) frosted glass (b) a book (c) a steel plate (d) a wooden board
  18. 18.⚖️ 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 keep it the same (c) we measure it
  19. 19.🔍 Which is the odd one out? (a) tissue paper (b) oily paper (c) frosted glass (d) a book
  20. 20.🔦 Is air opaque, translucent or transparent? (a) opaque (b) translucent (c) transparent
  21. 21.🌞 When is a stick’s shadow the shortest? (a) late evening (b) around noon (c) at night (d) early morning
  22. 22.🧺 Do we need turmeric powder for the shadow clock? (a) not needed (b) needed
  23. 23.🔦 Is oily paper opaque, translucent or transparent? (a) opaque (b) transparent (c) translucent
  24. 24.True or false: a balloon is needed for the shadow clock. (a) True (b) False
  25. 25.🔍 Which is the odd one out? (a) a book (b) a wooden board (c) frosted glass (d) your hand
  26. 26.True or false: a brick is transparent. (a) False (b) True
  27. 27.🧺 Do we need a sunny open place for the shadow clock? (a) needed (b) not needed
  28. 28.🔦 Which of these is opaque? (a) oily paper (b) your hand (c) air (d) frosted glass
  29. 29.🌅 In the morning the Sun is in the east. Which way does a shadow point? (a) east (b) west (c) north (d) up
  30. 30.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the stick kept upright is what we measure. (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) False (b) True
  32. 32.🧺 Which of these is not needed for the shadow clock? (a) a magnet (b) a clock to check (c) chalk to mark shadows (d) a sunny open place
  33. 33.🧺 Which of these is not needed for the shadow clock? (a) a clock to check (b) a sunny open place (c) a straight stick (d) a balloon
  34. 34.🧺 Which of these is needed for the shadow clock? (a) a sunny open place (b) a balloon (c) a magnet (d) a mirror
  35. 35.🔦 Is clear plastic film opaque, translucent or transparent? (a) translucent (b) transparent (c) opaque
  36. 36.🔍 Which is the odd one out? (a) a wooden board (b) a brick (c) air (d) a steel plate
  37. 37.🛟 What should you wear for a long time in the hot sun? (a) a woollen sweater (b) nothing on your head (c) a raincoat (d) a cap or hat
  38. 38.🧺 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) a magnet
  39. 39.⚖️ 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
  40. 40.🔦 Which of these is translucent? (a) clear plastic film (b) oily paper (c) a book (d) a wooden board

Answer key

  1. transparent
  2. the time of day
  3. a clock to check
  4. look straight at the Sun
  5. we keep it the same
  6. Earth keeps spinning
  7. not needed
  8. not needed
  9. False
  10. False
  11. True
  12. False
  13. we keep it the same
  14. a wooden board
  15. air
  16. needed
  17. frosted glass
  18. we change it
  19. a book
  20. transparent
  21. around noon
  22. not needed
  23. translucent
  24. False
  25. frosted glass
  26. False
  27. needed
  28. your hand
  29. west
  30. False
  31. False
  32. a magnet
  33. a balloon
  34. a sunny open place
  35. transparent
  36. air
  37. a cap or hat
  38. a magnet
  39. the same stick
  40. oily paper

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