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Shadow and Sundial Experiment Worksheet

Science experiments lesson 27: Shadows and a sundial · Set 268 · 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.🔍 Which is the odd one out? (a) a wooden board (b) a steel plate (c) a brick (d) oily paper
  2. 2.True or false: a sunny open place is not needed for the shadow clock. (a) True (b) False
  3. 3.True or false: a book is transparent. (a) True (b) False
  4. 4.🛟 While watching shadows outdoors, what must you never do? (a) wear a cap (b) look straight at the Sun (c) mark with chalk (d) sit in the shade
  5. 5.⚖️ Fair test — how does the shadow of a stick change through the day? What do we do with “the stick kept upright”? (a) we change it (b) we measure it (c) we keep it the same
  6. 6.🔮 Predict: on a fully cloudy day, the sundial ___. (a) runs faster (b) does not work well (c) shows two times (d) works better
  7. 7.🧺 Do we need turmeric powder for the shadow clock? (a) needed (b) not needed
  8. 8.True or false: clean water is opaque. (a) False (b) True
  9. 9.🔦 Is butter paper opaque, translucent or transparent? (a) translucent (b) transparent (c) opaque
  10. 10.🔍 Which is the odd one out? (a) clear plastic film (b) clear glass (c) your hand (d) air
  11. 11.🔦 Which of these is opaque? (a) butter paper (b) frosted glass (c) a book (d) clean water
  12. 12.True or false: clean water is translucent. (a) False (b) True
  13. 13.True or false: clean water is transparent. (a) True (b) False
  14. 14.🧺 Do we need a straight stick for the shadow clock? (a) not needed (b) needed
  15. 15.🧺 Do we need a sunny open place for the shadow clock? (a) needed (b) not needed
  16. 16.🧺 Which of these is not needed for the shadow clock? (a) chalk to mark shadows (b) a straight stick (c) a clock to check (d) a battery cell
  17. 17.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a balloon (b) a straight stick (c) a sunny open place (d) chalk to mark shadows
  18. 18.🔮 Predict: the Sun is low in the evening sky. The stick’s shadow is ___. (a) short (b) round (c) missing (d) long
  19. 19.⚖️ 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
  20. 20.🔦 Is clear glass opaque, translucent or transparent? (a) transparent (b) opaque (c) translucent
  21. 21.⚖️ Fair test — how does the shadow of a stick change through the day? Which of these is kept the same? (a) shadow length (b) the time of day (c) the stick kept upright
  22. 22.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a straight stick (b) chalk to mark shadows (c) a magnet (d) a clock to check
  23. 23.🔍 Which is the odd one out? (a) air (b) a wooden board (c) a steel plate (d) your hand
  24. 24.🔦 Which of these is transparent? (a) tissue paper (b) clean water (c) oily paper (d) a book
  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 stick (b) the same spot (c) the time of day (d) the stick kept upright
  26. 26.🧺 Do we need a battery cell for the shadow clock? (a) needed (b) not needed
  27. 27.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a sunny open place (b) chalk to mark shadows (c) yeast (d) a clock to check
  28. 28.🧺 Do we need a balloon for the shadow clock? (a) needed (b) not needed
  29. 29.True or false: a battery cell is not needed for the shadow clock. (a) True (b) False
  30. 30.🧺 Which of these is not needed for the shadow clock? (a) a straight stick (b) chalk to mark shadows (c) a mirror (d) a sunny open place
  31. 31.🔦 Is a brick opaque, translucent or transparent? (a) transparent (b) translucent (c) opaque
  32. 32.⚖️ 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 keep it the same (c) we change it
  33. 33.🧺 Which of these is needed for the shadow clock? (a) turmeric powder (b) a battery cell (c) chalk to mark shadows (d) a balloon
  34. 34.🔦 Is a wooden board opaque, translucent or transparent? (a) transparent (b) translucent (c) opaque
  35. 35.🧺 Do we need yeast for the shadow clock? (a) needed (b) not needed
  36. 36.🧺 Which of these is needed for the shadow clock? (a) a sunny open place (b) yeast (c) a mirror (d) turmeric powder
  37. 37.True or false: a balloon is not needed for the shadow clock. (a) False (b) True
  38. 38.🛟 What should you wear for a long time in the hot sun? (a) a cap or hat (b) nothing on your head (c) a raincoat (d) a woollen sweater
  39. 39.🔦 Is clear plastic film opaque, translucent or transparent? (a) transparent (b) opaque (c) translucent
  40. 40.True or false: turmeric powder is needed for the shadow clock. (a) True (b) False

Answer key

  1. oily paper
  2. False
  3. False
  4. look straight at the Sun
  5. we keep it the same
  6. does not work well
  7. not needed
  8. False
  9. translucent
  10. your hand
  11. a book
  12. False
  13. True
  14. needed
  15. needed
  16. a battery cell
  17. a balloon
  18. long
  19. True
  20. transparent
  21. the stick kept upright
  22. a magnet
  23. air
  24. clean water
  25. the time of day
  26. not needed
  27. yeast
  28. not needed
  29. True
  30. a mirror
  31. opaque
  32. we keep it the same
  33. chalk to mark shadows
  34. opaque
  35. not needed
  36. a sunny open place
  37. True
  38. a cap or hat
  39. transparent
  40. False

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