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Shadow and Sundial Experiment Worksheet

Science experiments lesson 27: Shadows and a sundial · Set 115 · 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.

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

Answer key

  1. tissue paper
  2. a cap or hat
  3. not needed
  4. yeast
  5. frosted glass
  6. opaque
  7. look straight at the Sun
  8. air
  9. False
  10. a mirror
  11. needed
  12. around noon
  13. yeast
  14. not needed
  15. a steel plate
  16. an object blocks light
  17. does not work well
  18. opaque
  19. the same spot
  20. not needed
  21. a sunny open place
  22. True
  23. False
  24. True
  25. a straight stick
  26. translucent
  27. the same stick
  28. False
  29. we measure it
  30. needed
  31. bigger
  32. we change it
  33. a brick
  34. not needed
  35. turmeric powder
  36. opaque
  37. shadow length
  38. opaque
  39. west
  40. True

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