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Shadow and Sundial Experiment Worksheet

Science experiments lesson 27: Shadows and a sundial · Set 428 · 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.True or false: your hand is transparent. (a) True (b) False
  2. 2.🔦 Which of these is transparent? (a) butter paper (b) tissue paper (c) clear plastic film (d) a book
  3. 3.True or false: a steel plate is translucent. (a) False (b) True
  4. 4.⚖️ 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
  5. 5.🧺 Do we need chalk to mark shadows for the shadow clock? (a) needed (b) not needed
  6. 6.🔮 Predict: the Sun is low in the evening sky. The stick’s shadow is ___. (a) round (b) short (c) missing (d) long
  7. 7.🔍 Which is the odd one out? (a) a brick (b) a wooden board (c) butter paper (d) a steel plate
  8. 8.🔍 Which is the odd one out? (a) clear glass (b) clear plastic film (c) a book (d) clean water
  9. 9.📘 Why does a shadow form? (a) an object blocks light (b) the object is cold (c) the ground is dark (d) light bends round it
  10. 10.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a mirror (b) a sunny open place (c) chalk to mark shadows (d) a straight stick
  11. 11.🔦 Is tissue paper opaque, translucent or transparent? (a) opaque (b) translucent (c) transparent
  12. 12.True or false: a brick is translucent. (a) False (b) True
  13. 13.🌞 When is a stick’s shadow the shortest? (a) early morning (b) at night (c) around noon (d) late evening
  14. 14.🛟 What should you wear for a long time in the hot sun? (a) a woollen sweater (b) a cap or hat (c) nothing on your head (d) a raincoat
  15. 15.🔮 Predict: you move a torch closer to your hand. The shadow on the wall gets ___. (a) coloured (b) smaller (c) bigger (d) brighter
  16. 16.🔮 Predict: on a fully cloudy day, the sundial ___. (a) works better (b) shows two times (c) does not work well (d) runs faster
  17. 17.🌅 In the morning the Sun is in the east. Which way does a shadow point? (a) east (b) west (c) up (d) north
  18. 18.True or false: a clock to check is needed for the shadow clock. (a) True (b) False
  19. 19.🧺 Do we need yeast for the shadow clock? (a) not needed (b) needed
  20. 20.🔦 Which of these is opaque? (a) air (b) clear glass (c) a book (d) frosted glass
  21. 21.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a magnet (b) a sunny open place (c) a clock to check (d) chalk to mark shadows
  22. 22.⚖️ 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 spot (c) the stick kept upright (d) the time of day
  23. 23.⚖️ 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 keep it the same (c) we change it
  24. 24.🛟 While watching shadows outdoors, what must you never do? (a) wear a cap (b) mark with chalk (c) look straight at the Sun (d) sit in the shade
  25. 25.🧺 Do we need a magnet for the shadow clock? (a) needed (b) not needed
  26. 26.⚖️ Fair test — how does the shadow of a stick change through the day? What do we do with “the same spot”? (a) we change it (b) we measure it (c) we keep it the same
  27. 27.🔍 Which is the odd one out? (a) tissue paper (b) clean water (c) frosted glass (d) butter paper
  28. 28.⚖️ 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
  29. 29.True or false: a sunny open place is needed for the shadow clock. (a) False (b) True
  30. 30.🧺 Do we need a balloon for the shadow clock? (a) not needed (b) needed
  31. 31.True or false: turmeric powder is not needed for the shadow clock. (a) False (b) True
  32. 32.🧺 Do we need a clock to check for the shadow clock? (a) needed (b) not needed
  33. 33.True or false: your hand is translucent. (a) True (b) False
  34. 34.True or false: a straight stick is not needed for the shadow clock. (a) False (b) True
  35. 35.True or false: chalk to mark shadows is not needed for the shadow clock. (a) False (b) True
  36. 36.⚖️ 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
  37. 37.⚖️ 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 keep it the same (c) we measure it
  38. 38.🔦 Is a steel plate opaque, translucent or transparent? (a) transparent (b) translucent (c) opaque
  39. 39.🧺 Which of these is not needed for the shadow clock? (a) a straight stick (b) a clock to check (c) a balloon (d) a sunny open place
  40. 40.⚖️ Fair test — how does the shadow of a stick change through the day? What do we do with “the stick kept upright”? (a) we measure it (b) we change it (c) we keep it the same

Answer key

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

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