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Shadow and Sundial Experiment Worksheet

Science experiments lesson 27: Shadows and a sundial · Set 495 · 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.🔮 Predict: on a fully cloudy day, the sundial ___. (a) shows two times (b) works better (c) does not work well (d) runs faster
  2. 2.⚖️ 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
  3. 3.🧺 Do we need a battery cell for the shadow clock? (a) needed (b) not needed
  4. 4.True or false: a balloon is not needed for the shadow clock. (a) True (b) False
  5. 5.🔦 Is butter paper opaque, translucent or transparent? (a) transparent (b) translucent (c) opaque
  6. 6.⚖️ Fair test — how does the shadow of a stick change through the day? What do we do with “the stick kept upright”? (a) we keep it the same (b) we change it (c) we measure it
  7. 7.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a balloon (b) a clock to check (c) a sunny open place (d) chalk to mark shadows
  8. 8.🔍 Which is the odd one out? (a) a brick (b) a steel plate (c) oily paper (d) your hand
  9. 9.🧺 Which of these is needed for the shadow clock? (a) turmeric powder (b) a balloon (c) a magnet (d) a sunny open place
  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) a magnet (d) chalk to mark shadows
  11. 11.🔮 Predict: you move a torch closer to your hand. The shadow on the wall gets ___. (a) brighter (b) smaller (c) coloured (d) bigger
  12. 12.🧺 Which of these is needed for the shadow clock? (a) a balloon (b) a magnet (c) yeast (d) a straight stick
  13. 13.🔦 Is oily paper opaque, translucent or transparent? (a) opaque (b) transparent (c) translucent
  14. 14.🔍 Which is the odd one out? (a) tissue paper (b) a book (c) a wooden board (d) your hand
  15. 15.⚖️ 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) True (b) False
  16. 16.🌍 Why does the stick’s shadow move during the day? (a) the stick walks (b) the ground slides (c) the stick grows (d) Earth keeps spinning
  17. 17.True or false: yeast is needed for the shadow clock. (a) False (b) True
  18. 18.🔮 Predict: the Sun is low in the evening sky. The stick’s shadow is ___. (a) long (b) short (c) round (d) missing
  19. 19.True or false: clear glass is transparent. (a) False (b) True
  20. 20.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a straight stick (b) a battery cell (c) chalk to mark shadows (d) a clock to check
  21. 21.🧺 Which of these is needed for the shadow clock? (a) a balloon (b) yeast (c) a clock to check (d) a magnet
  22. 22.True or false: a straight stick is not needed for the shadow clock. (a) True (b) False
  23. 23.🔍 Which is the odd one out? (a) a wooden board (b) a steel plate (c) frosted glass (d) a book
  24. 24.🔦 Which of these is opaque? (a) clean water (b) tissue paper (c) frosted glass (d) a wooden board
  25. 25.True or false: a battery cell is not needed for the shadow clock. (a) True (b) False
  26. 26.🔦 Which of these is transparent? (a) tissue paper (b) clean water (c) your hand (d) butter paper
  27. 27.True or false: a steel plate is transparent. (a) False (b) True
  28. 28.🧺 Which of these is not needed for the shadow clock? (a) a clock to check (b) a sunny open place (c) a straight stick (d) a battery cell
  29. 29.🛟 While watching shadows outdoors, what must you never do? (a) look straight at the Sun (b) wear a cap (c) sit in the shade (d) mark with chalk
  30. 30.🧺 Which of these is not needed for the shadow clock? (a) a clock to check (b) a sunny open place (c) a mirror (d) a straight stick
  31. 31.True or false: turmeric powder is needed for the shadow clock. (a) True (b) False
  32. 32.True or false: a magnet is needed for the shadow clock. (a) False (b) True
  33. 33.🌅 In the morning the Sun is in the east. Which way does a shadow point? (a) east (b) west (c) up (d) north
  34. 34.⚖️ 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
  35. 35.🧺 Which of these is not needed for the shadow clock? (a) chalk to mark shadows (b) a sunny open place (c) a straight stick (d) turmeric powder
  36. 36.🔍 Which is the odd one out? (a) tissue paper (b) air (c) butter paper (d) frosted glass
  37. 37.🧺 Do we need turmeric powder for the shadow clock? (a) needed (b) not needed
  38. 38.📘 Why does a shadow form? (a) the object is cold (b) light bends round it (c) the ground is dark (d) an object blocks light
  39. 39.🔍 Which is the odd one out? (a) butter paper (b) frosted glass (c) tissue paper (d) clear plastic film
  40. 40.True or false: a mirror is needed for the shadow clock. (a) True (b) False

Answer key

  1. does not work well
  2. we change it
  3. not needed
  4. True
  5. translucent
  6. we keep it the same
  7. a balloon
  8. oily paper
  9. a sunny open place
  10. a magnet
  11. bigger
  12. a straight stick
  13. translucent
  14. tissue paper
  15. True
  16. Earth keeps spinning
  17. False
  18. long
  19. True
  20. a battery cell
  21. a clock to check
  22. False
  23. frosted glass
  24. a wooden board
  25. True
  26. clean water
  27. False
  28. a battery cell
  29. look straight at the Sun
  30. a mirror
  31. False
  32. False
  33. west
  34. False
  35. turmeric powder
  36. air
  37. not needed
  38. an object blocks light
  39. clear plastic film
  40. False

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