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Shadow and Sundial Experiment Worksheet

Science experiments lesson 27: Shadows and a sundial · Set 80 · 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.🌅 In the morning the Sun is in the east. Which way does a shadow point? (a) east (b) north (c) west (d) up
  2. 2.🛟 What should you wear for a long time in the hot sun? (a) nothing on your head (b) a woollen sweater (c) a raincoat (d) a cap or hat
  3. 3.🧺 Which of these is not needed for the shadow clock? (a) a mirror (b) a clock to check (c) chalk to mark shadows (d) a straight stick
  4. 4.🔦 Is a steel plate opaque, translucent or transparent? (a) opaque (b) transparent (c) translucent
  5. 5.🛟 While watching shadows outdoors, what must you never do? (a) wear a cap (b) sit in the shade (c) mark with chalk (d) look straight at the Sun
  6. 6.🔮 Predict: you move a torch closer to your hand. The shadow on the wall gets ___. (a) coloured (b) brighter (c) bigger (d) smaller
  7. 7.⚖️ 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 stick (b) the time of day (c) the same spot (d) the stick kept upright
  8. 8.⚖️ 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
  9. 9.⚖️ 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 spot
  10. 10.🔦 Is a brick opaque, translucent or transparent? (a) opaque (b) translucent (c) transparent
  11. 11.True or false: a wooden board is translucent. (a) False (b) True
  12. 12.🔦 Which of these is translucent? (a) clean water (b) clear plastic film (c) a wooden board (d) butter paper
  13. 13.🧺 Do we need a clock to check for the shadow clock? (a) not needed (b) needed
  14. 14.🧺 Do we need chalk to mark shadows for the shadow clock? (a) needed (b) not needed
  15. 15.🔦 Is clear plastic film opaque, translucent or transparent? (a) transparent (b) opaque (c) translucent
  16. 16.🧺 Do we need a magnet for the shadow clock? (a) not needed (b) needed
  17. 17.🧺 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
  18. 18.⚖️ 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
  19. 19.⚖️ 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
  20. 20.🔍 Which is the odd one out? (a) tissue paper (b) oily paper (c) a wooden board (d) butter paper
  21. 21.True or false: tissue paper is opaque. (a) False (b) True
  22. 22.🧺 Do we need a battery cell for the shadow clock? (a) not needed (b) needed
  23. 23.⚖️ Fair test — how does the shadow of a stick change through the day? What do we do with “the time of day”? (a) we measure it (b) we change it (c) we keep it the same
  24. 24.🧺 Do we need a straight stick for the shadow clock? (a) not needed (b) needed
  25. 25.⚖️ Fair test — how does the shadow of a stick change through the day? Which of these is kept the same? (a) the stick kept upright (b) the time of day (c) shadow length
  26. 26.🔦 Is tissue paper opaque, translucent or transparent? (a) opaque (b) translucent (c) transparent
  27. 27.🔍 Which is the odd one out? (a) frosted glass (b) your hand (c) butter paper (d) oily paper
  28. 28.🕰️ What is a sundial used for? (a) making rainbows (b) telling the time (c) weighing things (d) measuring rain
  29. 29.🌞 When is a stick’s shadow the shortest? (a) at night (b) early morning (c) late evening (d) around noon
  30. 30.📘 Why does a shadow form? (a) the ground is dark (b) an object blocks light (c) the object is cold (d) light bends round it
  31. 31.🔦 Which of these is opaque? (a) oily paper (b) tissue paper (c) a wooden board (d) air
  32. 32.🧺 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) turmeric powder (d) a straight stick
  33. 33.⚖️ Fair test — how does the shadow of a stick change through the day? Which of these is what we measure? (a) the same spot (b) the time of day (c) shadow length (d) the stick kept upright
  34. 34.True or false: yeast is needed for the shadow clock. (a) True (b) False
  35. 35.True or false: a balloon is needed for the shadow clock. (a) False (b) True
  36. 36.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a straight stick (b) chalk to mark shadows (c) a battery cell (d) a clock to check
  37. 37.🔦 Is a book opaque, translucent or transparent? (a) opaque (b) translucent (c) transparent
  38. 38.True or false: a battery cell is not needed for the shadow clock. (a) False (b) True
  39. 39.🔦 Is a wooden board opaque, translucent or transparent? (a) translucent (b) opaque (c) transparent
  40. 40.True or false: a balloon is not needed for the shadow clock. (a) False (b) True

Answer key

  1. west
  2. a cap or hat
  3. a mirror
  4. opaque
  5. look straight at the Sun
  6. bigger
  7. the time of day
  8. True
  9. the same spot
  10. opaque
  11. False
  12. butter paper
  13. needed
  14. needed
  15. transparent
  16. not needed
  17. yeast
  18. True
  19. False
  20. a wooden board
  21. False
  22. not needed
  23. we change it
  24. needed
  25. the stick kept upright
  26. translucent
  27. your hand
  28. telling the time
  29. around noon
  30. an object blocks light
  31. a wooden board
  32. turmeric powder
  33. shadow length
  34. False
  35. False
  36. a battery cell
  37. opaque
  38. True
  39. opaque
  40. True

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