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Shadow and Sundial Experiment Worksheet

Science experiments lesson 27: Shadows and a sundial · Set 194 · 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 needed for the shadow clock? (a) a battery cell (b) a mirror (c) chalk to mark shadows (d) a magnet
  2. 2.🔍 Which is the odd one out? (a) a book (b) a wooden board (c) oily paper (d) a steel plate
  3. 3.🔦 Is your hand opaque, translucent or transparent? (a) transparent (b) translucent (c) opaque
  4. 4.True or false: frosted glass is translucent. (a) False (b) True
  5. 5.🧺 Do we need a straight stick for the shadow clock? (a) needed (b) not needed
  6. 6.🔍 Which is the odd one out? (a) clear plastic film (b) air (c) a book (d) clean water
  7. 7.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the same spot is what we measure. (a) True (b) False
  8. 8.🌅 In the morning the Sun is in the east. Which way does a shadow point? (a) east (b) west (c) up (d) north
  9. 9.True or false: chalk to mark shadows is not needed for the shadow clock. (a) False (b) True
  10. 10.🧺 Do we need chalk to mark shadows for the shadow clock? (a) needed (b) not needed
  11. 11.🛟 While watching shadows outdoors, what must you never do? (a) mark with chalk (b) look straight at the Sun (c) wear a cap (d) sit in the shade
  12. 12.True or false: a clock to check is not needed for the shadow clock. (a) True (b) False
  13. 13.True or false: a battery cell is not needed for the shadow clock. (a) True (b) False
  14. 14.True or false: a mirror is needed for the shadow clock. (a) True (b) False
  15. 15.🔍 Which is the odd one out? (a) butter paper (b) a brick (c) a wooden board (d) a steel plate
  16. 16.🔦 Which of these is translucent? (a) oily paper (b) a brick (c) a wooden board (d) clean water
  17. 17.🛟 What should you wear for a long time in the hot sun? (a) a woollen sweater (b) nothing on your head (c) a cap or hat (d) a raincoat
  18. 18.📘 Why does a shadow form? (a) light bends round it (b) an object blocks light (c) the object is cold (d) the ground is dark
  19. 19.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a sunny open place (b) a clock to check (c) a straight stick (d) a battery cell
  20. 20.🧺 Which of these is needed for the shadow clock? (a) a sunny open place (b) a battery cell (c) a balloon (d) turmeric powder
  21. 21.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the same spot is kept the same. (a) True (b) False
  22. 22.🔍 Which is the odd one out? (a) frosted glass (b) butter paper (c) tissue paper (d) a steel plate
  23. 23.🧺 Do we need a magnet for the shadow clock? (a) needed (b) not needed
  24. 24.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a straight stick (b) a sunny open place (c) yeast (d) a clock to check
  25. 25.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the same spot is the one thing we change. (a) False (b) True
  26. 26.⚖️ Fair test — how does the shadow of a stick change through the day? Which of these is the one thing we change? (a) the same spot (b) the time of day (c) the same stick (d) the stick kept upright
  27. 27.True or false: a brick is opaque. (a) False (b) True
  28. 28.🔦 Is air opaque, translucent or transparent? (a) opaque (b) transparent (c) translucent
  29. 29.True or false: a straight stick is needed for the shadow clock. (a) True (b) False
  30. 30.🌍 Why does the stick’s shadow move during the day? (a) the stick walks (b) the ground slides (c) the stick grows (d) Earth keeps spinning
  31. 31.🧺 Which of these is not needed for the shadow clock? (a) a mirror (b) chalk to mark shadows (c) a straight stick (d) a sunny open place
  32. 32.🔮 Predict: the Sun is low in the evening sky. The stick’s shadow is ___. (a) missing (b) round (c) short (d) long
  33. 33.True or false: turmeric powder is needed for the shadow clock. (a) False (b) True
  34. 34.⚖️ Fair test — how does the shadow of a stick change through the day? What do we do with “the same spot”? (a) we measure it (b) we keep it the same (c) we change it
  35. 35.🧺 Which of these is needed for the shadow clock? (a) a battery cell (b) yeast (c) a clock to check (d) a magnet
  36. 36.🔦 Which of these is opaque? (a) frosted glass (b) a brick (c) air (d) clear plastic film
  37. 37.⚖️ 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
  38. 38.🔦 Is a book opaque, translucent or transparent? (a) transparent (b) opaque (c) translucent
  39. 39.🔦 Which of these is transparent? (a) frosted glass (b) clear plastic film (c) a brick (d) butter paper
  40. 40.🔦 Which of these is translucent? (a) a book (b) a steel plate (c) clear glass (d) tissue paper

Answer key

  1. chalk to mark shadows
  2. oily paper
  3. opaque
  4. True
  5. needed
  6. a book
  7. False
  8. west
  9. False
  10. needed
  11. look straight at the Sun
  12. False
  13. True
  14. False
  15. butter paper
  16. oily paper
  17. a cap or hat
  18. an object blocks light
  19. a battery cell
  20. a sunny open place
  21. True
  22. a steel plate
  23. not needed
  24. yeast
  25. False
  26. the time of day
  27. True
  28. transparent
  29. True
  30. Earth keeps spinning
  31. a mirror
  32. long
  33. False
  34. we keep it the same
  35. a clock to check
  36. a brick
  37. False
  38. opaque
  39. clear plastic film
  40. tissue paper

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