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Shadow and Sundial Experiment Worksheet

Science experiments lesson 27: Shadows and a sundial · Set 536 · 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.🛟 While watching shadows outdoors, what must you never do? (a) wear a cap (b) sit in the shade (c) look straight at the Sun (d) mark with chalk
  2. 2.🔍 Which is the odd one out? (a) a book (b) your hand (c) a steel plate (d) clear glass
  3. 3.🔮 Predict: on a fully cloudy day, the sundial ___. (a) works better (b) shows two times (c) does not work well (d) runs faster
  4. 4.True or false: yeast is not needed for the shadow clock. (a) False (b) True
  5. 5.🌞 When is a stick’s shadow the shortest? (a) at night (b) around noon (c) late evening (d) early morning
  6. 6.🧺 Which of these is needed for the shadow clock? (a) a magnet (b) a straight stick (c) a balloon (d) a mirror
  7. 7.🔦 Is clear plastic film opaque, translucent or transparent? (a) transparent (b) translucent (c) opaque
  8. 8.⚖️ 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
  9. 9.🔦 Is oily paper opaque, translucent or transparent? (a) transparent (b) translucent (c) opaque
  10. 10.True or false: a sunny open place is not needed for the shadow clock. (a) True (b) False
  11. 11.🧺 Which of these is not needed for the shadow clock? (a) a straight stick (b) a sunny open place (c) turmeric powder (d) chalk to mark shadows
  12. 12.🌅 In the morning the Sun is in the east. Which way does a shadow point? (a) west (b) north (c) east (d) up
  13. 13.True or false: clean water is opaque. (a) False (b) True
  14. 14.⚖️ 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 same stick (c) shadow length (d) the time of day
  15. 15.⚖️ Fair test — how does the shadow of a stick change through the day? Which of these is kept the same? (a) the time of day (b) shadow length (c) the same spot
  16. 16.True or false: turmeric powder is not needed for the shadow clock. (a) True (b) False
  17. 17.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the time of day is kept the same. (a) True (b) False
  18. 18.🔮 Predict: you move a torch closer to your hand. The shadow on the wall gets ___. (a) smaller (b) bigger (c) coloured (d) brighter
  19. 19.⚖️ Fair test — how does the shadow of a stick change through the day? What do we do with “the same stick”? (a) we keep it the same (b) we change it (c) we measure it
  20. 20.🔮 Predict: the Sun is low in the evening sky. The stick’s shadow is ___. (a) round (b) missing (c) long (d) short
  21. 21.🔦 Is a book opaque, translucent or transparent? (a) transparent (b) translucent (c) opaque
  22. 22.True or false: a wooden board is transparent. (a) True (b) False
  23. 23.🧺 Do we need a sunny open place for the shadow clock? (a) not needed (b) needed
  24. 24.🔍 Which is the odd one out? (a) a wooden board (b) a book (c) a brick (d) clear plastic film
  25. 25.🔍 Which is the odd one out? (a) clear plastic film (b) air (c) a brick (d) clean water
  26. 26.🧺 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 clock to check
  27. 27.True or false: chalk to mark shadows is needed for the shadow clock. (a) True (b) False
  28. 28.True or false: a magnet is needed for the shadow clock. (a) True (b) False
  29. 29.True or false: a balloon is not needed for the shadow clock. (a) False (b) True
  30. 30.🧺 Which of these is needed for the shadow clock? (a) a mirror (b) chalk to mark shadows (c) a balloon (d) turmeric powder
  31. 31.🧺 Do we need turmeric powder for the shadow clock? (a) needed (b) not needed
  32. 32.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the stick kept upright is kept the same. (a) False (b) True
  33. 33.⚖️ Fair test — how does the shadow of a stick change through the day? Which of these is the one thing we change? (a) the time of day (b) the same stick (c) the stick kept upright (d) the same spot
  34. 34.🔦 Is frosted glass opaque, translucent or transparent? (a) opaque (b) transparent (c) translucent
  35. 35.🧺 Do we need yeast for the shadow clock? (a) needed (b) not needed
  36. 36.🧺 Do we need a magnet for the shadow clock? (a) not needed (b) needed
  37. 37.🔦 Which of these is translucent? (a) butter paper (b) a book (c) your hand (d) clear plastic film
  38. 38.🌍 Why does the stick’s shadow move during the day? (a) the stick grows (b) the ground slides (c) Earth keeps spinning (d) the stick walks
  39. 39.⚖️ 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
  40. 40.⚖️ 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 measure it (c) we change it

Answer key

  1. look straight at the Sun
  2. clear glass
  3. does not work well
  4. True
  5. around noon
  6. a straight stick
  7. transparent
  8. True
  9. translucent
  10. False
  11. turmeric powder
  12. west
  13. False
  14. shadow length
  15. the same spot
  16. True
  17. False
  18. bigger
  19. we keep it the same
  20. long
  21. opaque
  22. False
  23. needed
  24. clear plastic film
  25. a brick
  26. a balloon
  27. True
  28. False
  29. True
  30. chalk to mark shadows
  31. not needed
  32. True
  33. the time of day
  34. translucent
  35. not needed
  36. not needed
  37. butter paper
  38. Earth keeps spinning
  39. True
  40. we change it

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