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Shadow and Sundial Experiment Worksheet

Science experiments lesson 27: Shadows and a sundial · Set 436 · 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.🔦 Which of these is transparent? (a) your hand (b) butter paper (c) clean water (d) oily paper
  2. 2.🧺 Which of these is not needed for the shadow clock? (a) a straight stick (b) chalk to mark shadows (c) a balloon (d) a sunny open place
  3. 3.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a sunny open place (b) chalk to mark shadows (c) a straight stick (d) yeast
  4. 4.⚖️ 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
  5. 5.True or false: a steel plate is translucent. (a) True (b) False
  6. 6.True or false: chalk to mark shadows is not needed for the shadow clock. (a) False (b) True
  7. 7.⚖️ 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
  8. 8.🔍 Which is the odd one out? (a) tissue paper (b) frosted glass (c) a brick (d) oily paper
  9. 9.🧺 Do we need a magnet for the shadow clock? (a) not needed (b) needed
  10. 10.⚖️ Fair test — how does the shadow of a stick change through the day? What do we do with “shadow length”? (a) we measure it (b) we change it (c) we keep it the same
  11. 11.True or false: butter paper is translucent. (a) True (b) False
  12. 12.🔍 Which is the odd one out? (a) clear glass (b) air (c) clear plastic film (d) your hand
  13. 13.🧺 Do we need turmeric powder for the shadow clock? (a) needed (b) not needed
  14. 14.🔦 Which of these is translucent? (a) a brick (b) clear glass (c) a steel plate (d) butter paper
  15. 15.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a straight stick (b) a sunny open place (c) a clock to check (d) a battery cell
  16. 16.🔍 Which is the odd one out? (a) clear glass (b) clear plastic film (c) clean water (d) tissue paper
  17. 17.True or false: a straight stick is not needed for the shadow clock. (a) False (b) True
  18. 18.⚖️ 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 measure it (c) we change it
  19. 19.🔦 Which of these is transparent? (a) tissue paper (b) clear glass (c) your hand (d) a wooden board
  20. 20.🔦 Which of these is translucent? (a) frosted glass (b) clear glass (c) air (d) clear plastic film
  21. 21.🧺 Which of these is needed for the shadow clock? (a) a mirror (b) a straight stick (c) a magnet (d) a battery cell
  22. 22.True or false: a sunny open place is not needed for the shadow clock. (a) False (b) True
  23. 23.True or false: a straight stick is needed for the shadow clock. (a) True (b) False
  24. 24.True or false: a magnet is needed for the shadow clock. (a) False (b) True
  25. 25.🌅 In the morning the Sun is in the east. Which way does a shadow point? (a) up (b) north (c) west (d) east
  26. 26.True or false: a wooden board is opaque. (a) False (b) True
  27. 27.🧺 Which of these is needed for the shadow clock? (a) a magnet (b) turmeric powder (c) a balloon (d) a clock to check
  28. 28.🧺 Do we need a battery cell for the shadow clock? (a) not needed (b) needed
  29. 29.📘 Why does a shadow form? (a) light bends round it (b) the ground is dark (c) an object blocks light (d) the object is cold
  30. 30.🛟 While watching shadows outdoors, what must you never do? (a) mark with chalk (b) look straight at the Sun (c) sit in the shade (d) wear a cap
  31. 31.True or false: tissue paper is opaque. (a) False (b) True
  32. 32.🌞 When is a stick’s shadow the shortest? (a) late evening (b) at night (c) around noon (d) early morning
  33. 33.🧺 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
  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 what we measure. (a) False (b) True
  36. 36.🔍 Which is the odd one out? (a) clear plastic film (b) butter paper (c) tissue paper (d) oily paper
  37. 37.True or false: a steel plate is transparent. (a) False (b) True
  38. 38.⚖️ Fair test — how does the shadow of a stick change through the day? What do we do with “the stick kept upright”? (a) we measure it (b) we keep it the same (c) we change it
  39. 39.🧺 Do we need a sunny open place for the shadow clock? (a) needed (b) not needed
  40. 40.🧺 Do we need a mirror for the shadow clock? (a) not needed (b) needed

Answer key

  1. clean water
  2. a balloon
  3. yeast
  4. False
  5. False
  6. False
  7. True
  8. a brick
  9. not needed
  10. we measure it
  11. True
  12. your hand
  13. not needed
  14. butter paper
  15. a battery cell
  16. tissue paper
  17. False
  18. we keep it the same
  19. clear glass
  20. frosted glass
  21. a straight stick
  22. False
  23. True
  24. False
  25. west
  26. True
  27. a clock to check
  28. not needed
  29. an object blocks light
  30. look straight at the Sun
  31. False
  32. around noon
  33. turmeric powder
  34. not needed
  35. False
  36. clear plastic film
  37. False
  38. we keep it the same
  39. needed
  40. not needed

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