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Shadow and Sundial Experiment Worksheet

Science experiments lesson 27: Shadows and a sundial · Set 864 · 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 not needed for the shadow clock? (a) chalk to mark shadows (b) a sunny open place (c) a mirror (d) a straight stick
  2. 2.🔦 Is frosted glass opaque, translucent or transparent? (a) opaque (b) translucent (c) transparent
  3. 3.🧺 Which of these is needed for the shadow clock? (a) a straight stick (b) turmeric powder (c) yeast (d) a magnet
  4. 4.🛟 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
  5. 5.🧺 Which of these is not needed for the shadow clock? (a) chalk to mark shadows (b) a balloon (c) a sunny open place (d) a straight stick
  6. 6.🧺 Do we need yeast for the shadow clock? (a) needed (b) not needed
  7. 7.🔦 Which of these is translucent? (a) your hand (b) a wooden board (c) butter paper (d) a book
  8. 8.🧺 Which of these is needed for the shadow clock? (a) a balloon (b) turmeric powder (c) a clock to check (d) a mirror
  9. 9.True or false: chalk to mark shadows is not needed for the shadow clock. (a) False (b) True
  10. 10.🔍 Which is the odd one out? (a) air (b) a book (c) clear plastic film (d) clear glass
  11. 11.🔦 Which of these is transparent? (a) tissue paper (b) a wooden board (c) clean water (d) a brick
  12. 12.🔮 Predict: the Sun is low in the evening sky. The stick’s shadow is ___. (a) missing (b) short (c) round (d) long
  13. 13.🔦 Is clear glass opaque, translucent or transparent? (a) opaque (b) translucent (c) transparent
  14. 14.⚖️ 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 change it (c) we measure it
  15. 15.⚖️ 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
  16. 16.True or false: a steel plate is opaque. (a) True (b) False
  17. 17.📘 Why does a shadow form? (a) the ground is dark (b) light bends round it (c) the object is cold (d) an object blocks light
  18. 18.⚖️ 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
  19. 19.🧺 Which of these is not needed for the shadow clock? (a) a straight stick (b) chalk to mark shadows (c) a clock to check (d) a magnet
  20. 20.🌞 When is a stick’s shadow the shortest? (a) around noon (b) late evening (c) at night (d) early morning
  21. 21.⚖️ 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 measure it (c) we keep it the same
  22. 22.🧺 Do we need turmeric powder for the shadow clock? (a) needed (b) not needed
  23. 23.🔍 Which is the odd one out? (a) a wooden board (b) frosted glass (c) oily paper (d) butter paper
  24. 24.⚖️ 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
  25. 25.🌍 Why does the stick’s shadow move during the day? (a) the ground slides (b) the stick grows (c) the stick walks (d) Earth keeps spinning
  26. 26.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a mirror (b) a clock to check (c) chalk to mark shadows (d) a sunny open place
  27. 27.🛟 While watching shadows outdoors, what must you never do? (a) look straight at the Sun (b) mark with chalk (c) sit in the shade (d) wear a cap
  28. 28.🧺 Do we need a balloon for the shadow clock? (a) not needed (b) needed
  29. 29.⚖️ Fair test — how does the shadow of a stick change through the day? What do we do with “the stick kept upright”? (a) we keep it the same (b) we measure it (c) we change it
  30. 30.True or false: clean water is translucent. (a) False (b) True
  31. 31.🔦 Is a wooden board opaque, translucent or transparent? (a) opaque (b) transparent (c) translucent
  32. 32.🔍 Which is the odd one out? (a) clear plastic film (b) oily paper (c) butter paper (d) frosted glass
  33. 33.🔍 Which is the odd one out? (a) air (b) clear plastic film (c) butter paper (d) clean water
  34. 34.True or false: tissue paper is opaque. (a) True (b) False
  35. 35.True or false: yeast is not needed for the shadow clock. (a) False (b) True
  36. 36.True or false: tissue paper is translucent. (a) True (b) False
  37. 37.⚖️ 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) False (b) True
  38. 38.🔍 Which is the odd one out? (a) tissue paper (b) clean water (c) clear plastic film (d) air
  39. 39.True or false: a mirror is not needed for the shadow clock. (a) False (b) True
  40. 40.True or false: yeast is needed for the shadow clock. (a) True (b) False

Answer key

  1. a mirror
  2. translucent
  3. a straight stick
  4. a cap or hat
  5. a balloon
  6. not needed
  7. butter paper
  8. a clock to check
  9. False
  10. a book
  11. clean water
  12. long
  13. transparent
  14. we change it
  15. shadow length
  16. True
  17. an object blocks light
  18. the time of day
  19. a magnet
  20. around noon
  21. we keep it the same
  22. not needed
  23. a wooden board
  24. we measure it
  25. Earth keeps spinning
  26. a mirror
  27. look straight at the Sun
  28. not needed
  29. we keep it the same
  30. False
  31. opaque
  32. clear plastic film
  33. butter paper
  34. False
  35. True
  36. True
  37. False
  38. tissue paper
  39. True
  40. False

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