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Shadow and Sundial Experiment Worksheet

Science experiments lesson 27: Shadows and a sundial · Set 838 · 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) mark with chalk (b) sit in the shade (c) wear a cap (d) look straight at the Sun
  2. 2.🧺 Do we need yeast for the shadow clock? (a) not needed (b) needed
  3. 3.🔦 Is a book opaque, translucent or transparent? (a) opaque (b) translucent (c) transparent
  4. 4.🌍 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
  5. 5.True or false: a straight stick is needed for the shadow clock. (a) True (b) False
  6. 6.🧺 Do we need turmeric powder for the shadow clock? (a) needed (b) not needed
  7. 7.🧺 Do we need a battery cell for the shadow clock? (a) needed (b) not needed
  8. 8.⚖️ 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) True (b) False
  9. 9.🔦 Is a brick opaque, translucent or transparent? (a) opaque (b) transparent (c) translucent
  10. 10.🔍 Which is the odd one out? (a) a brick (b) clean water (c) your hand (d) a book
  11. 11.True or false: clean water is transparent. (a) False (b) True
  12. 12.🌅 In the morning the Sun is in the east. Which way does a shadow point? (a) east (b) west (c) north (d) up
  13. 13.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a clock to check (b) chalk to mark shadows (c) a sunny open place (d) a mirror
  14. 14.True or false: butter paper is translucent. (a) True (b) False
  15. 15.🧺 Which of these is not needed for the shadow clock? (a) turmeric powder (b) chalk to mark shadows (c) a sunny open place (d) a straight stick
  16. 16.True or false: a sunny open place is not needed for the shadow clock. (a) False (b) True
  17. 17.🧺 Which of these is not needed for the shadow clock? (a) a clock to check (b) chalk to mark shadows (c) a sunny open place (d) a magnet
  18. 18.🔦 Is your hand opaque, translucent or transparent? (a) transparent (b) translucent (c) opaque
  19. 19.🔍 Which is the odd one out? (a) a steel plate (b) a book (c) a wooden board (d) clear plastic film
  20. 20.🔦 Is clean water opaque, translucent or transparent? (a) translucent (b) opaque (c) transparent
  21. 21.🔮 Predict: you move a torch closer to your hand. The shadow on the wall gets ___. (a) smaller (b) brighter (c) coloured (d) bigger
  22. 22.⚖️ 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
  23. 23.🔦 Which of these is opaque? (a) clear plastic film (b) a book (c) frosted glass (d) clear glass
  24. 24.🔦 Which of these is transparent? (a) your hand (b) oily paper (c) air (d) tissue paper
  25. 25.🔦 Which of these is opaque? (a) butter paper (b) clear plastic film (c) clean water (d) your hand
  26. 26.🔦 Which of these is transparent? (a) clear glass (b) your hand (c) a wooden board (d) a steel plate
  27. 27.🧺 Do we need a straight stick for the shadow clock? (a) needed (b) not needed
  28. 28.🌞 When is a stick’s shadow the shortest? (a) at night (b) late evening (c) early morning (d) around noon
  29. 29.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a straight stick (b) chalk to mark shadows (c) yeast (d) a clock to check
  30. 30.🔦 Which of these is translucent? (a) a book (b) clear glass (c) clear plastic film (d) oily paper
  31. 31.⚖️ 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
  32. 32.🔦 Is air opaque, translucent or transparent? (a) translucent (b) opaque (c) transparent
  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 same stick (b) the same spot (c) the stick kept upright (d) the time of day
  34. 34.🧺 Which of these is needed for the shadow clock? (a) a mirror (b) yeast (c) a clock to check (d) a battery cell
  35. 35.🧺 Which of these is needed for the shadow clock? (a) a balloon (b) a sunny open place (c) turmeric powder (d) a mirror
  36. 36.True or false: a balloon is needed for the shadow clock. (a) True (b) False
  37. 37.⚖️ 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) shadow length (c) the same stick (d) the same spot
  38. 38.True or false: turmeric powder is not needed for the shadow clock. (a) True (b) False
  39. 39.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the stick kept upright is what we measure. (a) False (b) True
  40. 40.True or false: a brick is transparent. (a) True (b) False

Answer key

  1. look straight at the Sun
  2. not needed
  3. opaque
  4. Earth keeps spinning
  5. True
  6. not needed
  7. not needed
  8. False
  9. opaque
  10. clean water
  11. True
  12. west
  13. a mirror
  14. True
  15. turmeric powder
  16. False
  17. a magnet
  18. opaque
  19. clear plastic film
  20. transparent
  21. bigger
  22. False
  23. a book
  24. air
  25. your hand
  26. clear glass
  27. needed
  28. around noon
  29. yeast
  30. oily paper
  31. we change it
  32. transparent
  33. the time of day
  34. a clock to check
  35. a sunny open place
  36. False
  37. shadow length
  38. True
  39. False
  40. False

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