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Shadow and Sundial Experiment Worksheet

Science experiments lesson 27: Shadows and a sundial · Set 733 · 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.🛟 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
  2. 2.🧺 Do we need a magnet for the shadow clock? (a) needed (b) not needed
  3. 3.🔦 Is butter paper opaque, translucent or transparent? (a) transparent (b) opaque (c) translucent
  4. 4.🧺 Do we need a clock to check for the shadow clock? (a) not needed (b) needed
  5. 5.🔮 Predict: the Sun is low in the evening sky. The stick’s shadow is ___. (a) short (b) missing (c) long (d) round
  6. 6.🔦 Is a book opaque, translucent or transparent? (a) translucent (b) opaque (c) transparent
  7. 7.🧺 Which of these is not needed for the shadow clock? (a) a straight stick (b) a clock to check (c) a mirror (d) a sunny open place
  8. 8.🔍 Which is the odd one out? (a) a brick (b) a book (c) tissue paper (d) a wooden board
  9. 9.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a sunny open place (b) a mirror (c) a clock to check (d) chalk to mark shadows
  10. 10.⚖️ 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
  11. 11.True or false: yeast is needed for the shadow clock. (a) False (b) True
  12. 12.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the time of day is kept the same. (a) True (b) False
  13. 13.🧺 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 sunny open place (d) yeast
  14. 14.⚖️ 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) False (b) True
  15. 15.True or false: a clock to check is not needed for the shadow clock. (a) False (b) True
  16. 16.⚖️ 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
  17. 17.⚖️ 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
  18. 18.🧺 Do we need a balloon for the shadow clock? (a) needed (b) not needed
  19. 19.🌞 When is a stick’s shadow the shortest? (a) at night (b) late evening (c) early morning (d) around noon
  20. 20.🛟 What should you wear for a long time in the hot sun? (a) a cap or hat (b) a woollen sweater (c) a raincoat (d) nothing on your head
  21. 21.⚖️ Fair test — how does the shadow of a stick change through the day? Which of these is kept the same? (a) the same stick (b) shadow length (c) the time of day
  22. 22.🧺 Do we need chalk to mark shadows for the shadow clock? (a) not needed (b) needed
  23. 23.🧺 Do we need a sunny open place for the shadow clock? (a) needed (b) not needed
  24. 24.🔦 Is oily paper opaque, translucent or transparent? (a) translucent (b) transparent (c) opaque
  25. 25.🧺 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) a magnet
  26. 26.⚖️ Fair test — how does the shadow of a stick change through the day? What do we do with “shadow length”? (a) we keep it the same (b) we change it (c) we measure it
  27. 27.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the same spot is kept the same. (a) False (b) True
  28. 28.True or false: a brick is opaque. (a) False (b) True
  29. 29.🔍 Which is the odd one out? (a) frosted glass (b) a steel plate (c) a brick (d) your hand
  30. 30.🔦 Is frosted glass opaque, translucent or transparent? (a) transparent (b) translucent (c) opaque
  31. 31.True or false: clean water is translucent. (a) False (b) True
  32. 32.⚖️ 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) False (b) True
  33. 33.🔦 Which of these is transparent? (a) air (b) your hand (c) a book (d) a steel plate
  34. 34.True or false: butter paper is translucent. (a) False (b) True
  35. 35.🔦 Which of these is opaque? (a) clear plastic film (b) frosted glass (c) oily paper (d) a book
  36. 36.🧺 Which of these is needed for the shadow clock? (a) turmeric powder (b) a battery cell (c) a clock to check (d) a mirror
  37. 37.True or false: a balloon is needed for the shadow clock. (a) False (b) True
  38. 38.🔦 Which of these is translucent? (a) a steel plate (b) your hand (c) a wooden board (d) frosted glass
  39. 39.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a balloon (b) chalk to mark shadows (c) a clock to check (d) a sunny open place
  40. 40.🔍 Which is the odd one out? (a) clear plastic film (b) air (c) a brick (d) clean water

Answer key

  1. look straight at the Sun
  2. not needed
  3. translucent
  4. needed
  5. long
  6. opaque
  7. a mirror
  8. tissue paper
  9. a mirror
  10. we change it
  11. False
  12. False
  13. yeast
  14. False
  15. False
  16. we keep it the same
  17. we keep it the same
  18. not needed
  19. around noon
  20. a cap or hat
  21. the same stick
  22. needed
  23. needed
  24. translucent
  25. a magnet
  26. we measure it
  27. True
  28. True
  29. frosted glass
  30. translucent
  31. False
  32. True
  33. air
  34. True
  35. a book
  36. a clock to check
  37. False
  38. frosted glass
  39. a balloon
  40. a brick

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