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Shadow and Sundial Experiment Worksheet

Science experiments lesson 27: Shadows and a sundial · Set 656 · 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: a mirror is not needed for the shadow clock. (a) False (b) True
  2. 2.🔍 Which is the odd one out? (a) air (b) tissue paper (c) frosted glass (d) butter paper
  3. 3.🌍 Why does the stick’s shadow move during the day? (a) the stick walks (b) the ground slides (c) Earth keeps spinning (d) the stick grows
  4. 4.🧺 Which of these is needed for the shadow clock? (a) a balloon (b) a battery cell (c) yeast (d) a clock to check
  5. 5.True or false: tissue paper is transparent. (a) False (b) True
  6. 6.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a clock to check (b) a straight stick (c) a battery cell (d) chalk to mark shadows
  7. 7.📘 Why does a shadow form? (a) light bends round it (b) an object blocks light (c) the object is cold (d) the ground is dark
  8. 8.🛟 While watching shadows outdoors, what must you never do? (a) wear a cap (b) mark with chalk (c) sit in the shade (d) look straight at the Sun
  9. 9.🌞 When is a stick’s shadow the shortest? (a) late evening (b) early morning (c) at night (d) around noon
  10. 10.🔮 Predict: on a fully cloudy day, the sundial ___. (a) runs faster (b) does not work well (c) shows two times (d) works better
  11. 11.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the same spot is what we measure. (a) True (b) False
  12. 12.🧺 Do we need a clock to check for the shadow clock? (a) needed (b) not needed
  13. 13.⚖️ 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
  14. 14.⚖️ 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
  15. 15.True or false: yeast is needed for the shadow clock. (a) False (b) True
  16. 16.🔦 Which of these is transparent? (a) a brick (b) a wooden board (c) clean water (d) your hand
  17. 17.🛟 What should you wear for a long time in the hot sun? (a) a woollen sweater (b) a raincoat (c) a cap or hat (d) nothing on your head
  18. 18.🔦 Which of these is opaque? (a) a book (b) air (c) clear glass (d) frosted glass
  19. 19.🔍 Which is the odd one out? (a) a steel plate (b) a book (c) butter paper (d) a brick
  20. 20.🔍 Which is the odd one out? (a) your hand (b) tissue paper (c) butter paper (d) oily paper
  21. 21.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a clock to check (b) a straight stick (c) a magnet (d) chalk to mark shadows
  22. 22.🧺 Which of these is not needed for the shadow clock? (a) yeast (b) a straight stick (c) a clock to check (d) chalk to mark shadows
  23. 23.True or false: a straight stick is needed for the shadow clock. (a) True (b) False
  24. 24.True or false: a straight stick is not needed for the shadow clock. (a) False (b) True
  25. 25.🔍 Which is the odd one out? (a) butter paper (b) clear glass (c) tissue paper (d) frosted glass
  26. 26.True or false: a steel plate is opaque. (a) False (b) True
  27. 27.🔦 Is a steel plate opaque, translucent or transparent? (a) opaque (b) transparent (c) translucent
  28. 28.🔦 Is air opaque, translucent or transparent? (a) opaque (b) transparent (c) translucent
  29. 29.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a clock to check (b) a mirror (c) a straight stick (d) chalk to mark shadows
  30. 30.True or false: a clock to check is not needed for the shadow clock. (a) True (b) False
  31. 31.🧺 Do we need yeast for the shadow clock? (a) not needed (b) needed
  32. 32.⚖️ 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 same stick (c) the time of day (d) shadow length
  33. 33.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: shadow length is what we measure. (a) False (b) True
  34. 34.⚖️ 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
  35. 35.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the same stick is what we measure. (a) False (b) True
  36. 36.🔦 Is a brick opaque, translucent or transparent? (a) translucent (b) opaque (c) transparent
  37. 37.🔮 Predict: you move a torch closer to your hand. The shadow on the wall gets ___. (a) smaller (b) coloured (c) bigger (d) brighter
  38. 38.🧺 Which of these is not needed for the shadow clock? (a) a clock to check (b) a sunny open place (c) chalk to mark shadows (d) a magnet
  39. 39.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the time of day is what we measure. (a) False (b) True
  40. 40.🔮 Predict: the Sun is low in the evening sky. The stick’s shadow is ___. (a) long (b) missing (c) short (d) round

Answer key

  1. True
  2. air
  3. Earth keeps spinning
  4. a clock to check
  5. False
  6. a battery cell
  7. an object blocks light
  8. look straight at the Sun
  9. around noon
  10. does not work well
  11. False
  12. needed
  13. True
  14. we change it
  15. False
  16. clean water
  17. a cap or hat
  18. a book
  19. butter paper
  20. your hand
  21. a magnet
  22. yeast
  23. True
  24. False
  25. clear glass
  26. True
  27. opaque
  28. transparent
  29. a mirror
  30. False
  31. not needed
  32. shadow length
  33. True
  34. we measure it
  35. False
  36. opaque
  37. bigger
  38. a magnet
  39. False
  40. long

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