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Shadow and Sundial Experiment Worksheet

Science experiments lesson 27: Shadows and a sundial · Set 24 · 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) a steel plate (b) a book (c) a brick (d) tissue paper
  2. 2.🔮 Predict: you move a torch closer to your hand. The shadow on the wall gets ___. (a) bigger (b) smaller (c) coloured (d) brighter
  3. 3.🔮 Predict: the Sun is low in the evening sky. The stick’s shadow is ___. (a) short (b) missing (c) round (d) long
  4. 4.True or false: a magnet is needed for the shadow clock. (a) False (b) True
  5. 5.🛟 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
  6. 6.🧺 Do we need a sunny open place for the shadow clock? (a) needed (b) not needed
  7. 7.🧺 Which of these is not needed for the shadow clock? (a) chalk to mark shadows (b) a clock to check (c) a battery cell (d) a straight stick
  8. 8.True or false: turmeric powder is not needed for the shadow clock. (a) False (b) True
  9. 9.True or false: turmeric powder is needed for the shadow clock. (a) True (b) False
  10. 10.🔦 Which of these is opaque? (a) clear glass (b) your hand (c) tissue paper (d) butter paper
  11. 11.🧺 Do we need turmeric powder for the shadow clock? (a) not needed (b) needed
  12. 12.🌅 In the morning the Sun is in the east. Which way does a shadow point? (a) west (b) east (c) up (d) north
  13. 13.🧺 Which of these is not needed for the shadow clock? (a) a balloon (b) chalk to mark shadows (c) a straight stick (d) a clock to check
  14. 14.True or false: a clock to check is not needed for the shadow clock. (a) True (b) False
  15. 15.True or false: a battery cell is needed for the shadow clock. (a) True (b) False
  16. 16.True or false: your hand is transparent. (a) False (b) True
  17. 17.⚖️ Fair test — how does the shadow of a stick change through the day? What do we do with “the time of day”? (a) we change it (b) we keep it the same (c) we measure it
  18. 18.🔍 Which is the odd one out? (a) tissue paper (b) your hand (c) oily paper (d) frosted glass
  19. 19.⚖️ 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 measure it (c) we keep it the same
  20. 20.True or false: clean water is opaque. (a) False (b) True
  21. 21.⚖️ Fair test — how does the shadow of a stick change through the day? Which of these is what we measure? (a) the stick kept upright (b) the time of day (c) shadow length (d) the same stick
  22. 22.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a sunny open place (b) a straight stick (c) a clock to check (d) turmeric powder
  23. 23.🔦 Is butter paper opaque, translucent or transparent? (a) opaque (b) translucent (c) transparent
  24. 24.🔍 Which is the odd one out? (a) a wooden board (b) a brick (c) a book (d) clear glass
  25. 25.⚖️ 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) shadow length
  26. 26.🌞 When is a stick’s shadow the shortest? (a) at night (b) late evening (c) around noon (d) early morning
  27. 27.🧺 Do we need a battery cell for the shadow clock? (a) needed (b) not needed
  28. 28.True or false: a wooden board is opaque. (a) True (b) False
  29. 29.🧺 Do we need a mirror for the shadow clock? (a) needed (b) not needed
  30. 30.⚖️ 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 change it (c) we keep it the same
  31. 31.🧺 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 balloon (d) a sunny open place
  32. 32.🧺 Do we need chalk to mark shadows for the shadow clock? (a) not needed (b) needed
  33. 33.🔍 Which is the odd one out? (a) tissue paper (b) frosted glass (c) butter paper (d) a steel plate
  34. 34.🔮 Predict: on a fully cloudy day, the sundial ___. (a) shows two times (b) works better (c) does not work well (d) runs faster
  35. 35.📘 Why does a shadow form? (a) light bends round it (b) the object is cold (c) an object blocks light (d) the ground is dark
  36. 36.True or false: oily paper is transparent. (a) True (b) False
  37. 37.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the same stick is kept the same. (a) True (b) False
  38. 38.🧺 Which of these is not needed for the shadow clock? (a) a clock to check (b) a straight stick (c) turmeric powder (d) a sunny open place
  39. 39.🧺 Which of these is not needed for the shadow clock? (a) a sunny open place (b) a clock to check (c) a magnet (d) a straight stick
  40. 40.🔍 Which is the odd one out? (a) butter paper (b) your hand (c) a steel plate (d) a brick

Answer key

  1. tissue paper
  2. bigger
  3. long
  4. False
  5. look straight at the Sun
  6. needed
  7. a battery cell
  8. True
  9. False
  10. your hand
  11. not needed
  12. west
  13. a balloon
  14. False
  15. False
  16. False
  17. we change it
  18. your hand
  19. we measure it
  20. False
  21. shadow length
  22. turmeric powder
  23. translucent
  24. clear glass
  25. the time of day
  26. around noon
  27. not needed
  28. True
  29. not needed
  30. we keep it the same
  31. a balloon
  32. needed
  33. a steel plate
  34. does not work well
  35. an object blocks light
  36. False
  37. True
  38. turmeric powder
  39. a magnet
  40. butter paper

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