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Shadow and Sundial Experiment Worksheet

Science experiments lesson 27: Shadows and a sundial · Set 588 · 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.🔦 Is tissue paper opaque, translucent or transparent? (a) transparent (b) opaque (c) translucent
  2. 2.🔦 Which of these is translucent? (a) butter paper (b) clear glass (c) a wooden board (d) a book
  3. 3.🛟 While watching shadows outdoors, what must you never do? (a) sit in the shade (b) look straight at the Sun (c) mark with chalk (d) wear a cap
  4. 4.True or false: a clock to check is needed for the shadow clock. (a) False (b) True
  5. 5.True or false: oily paper is translucent. (a) True (b) False
  6. 6.🧺 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 sunny open place (d) a battery cell
  7. 7.🔮 Predict: on a fully cloudy day, the sundial ___. (a) does not work well (b) shows two times (c) runs faster (d) works better
  8. 8.🌞 When is a stick’s shadow the shortest? (a) early morning (b) around noon (c) late evening (d) at night
  9. 9.🧺 Do we need a mirror for the shadow clock? (a) needed (b) not needed
  10. 10.🧺 Which of these is not needed for the shadow clock? (a) chalk to mark shadows (b) a clock to check (c) turmeric powder (d) a sunny open place
  11. 11.🔮 Predict: the Sun is low in the evening sky. The stick’s shadow is ___. (a) short (b) missing (c) round (d) long
  12. 12.🧺 Which of these is needed for the shadow clock? (a) yeast (b) a mirror (c) a clock to check (d) a balloon
  13. 13.🔦 Is frosted glass opaque, translucent or transparent? (a) translucent (b) transparent (c) opaque
  14. 14.🔍 Which is the odd one out? (a) a steel plate (b) tissue paper (c) a wooden board (d) a brick
  15. 15.True or false: a sunny open place is not needed for the shadow clock. (a) False (b) True
  16. 16.⚖️ 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
  17. 17.⚖️ 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 time of day (c) shadow length (d) the same stick
  18. 18.🧺 Do we need a clock to check for the shadow clock? (a) not needed (b) needed
  19. 19.True or false: a brick is opaque. (a) True (b) False
  20. 20.True or false: a wooden board is opaque. (a) True (b) False
  21. 21.🧺 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) a mirror (d) a straight stick
  22. 22.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the stick kept upright is the one thing we change. (a) False (b) True
  23. 23.⚖️ 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
  24. 24.🧺 Do we need a magnet for the shadow clock? (a) not needed (b) needed
  25. 25.True or false: clean water is transparent. (a) False (b) True
  26. 26.🔍 Which is the odd one out? (a) clear glass (b) clean water (c) frosted glass (d) air
  27. 27.🔦 Which of these is transparent? (a) butter paper (b) a steel plate (c) clear glass (d) your hand
  28. 28.⚖️ 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
  29. 29.True or false: frosted glass is transparent. (a) False (b) True
  30. 30.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) chalk to mark shadows (b) a clock to check (c) turmeric powder (d) a sunny open place
  31. 31.⚖️ 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
  32. 32.🛟 What should you wear for a long time in the hot sun? (a) a woollen sweater (b) a cap or hat (c) a raincoat (d) nothing on your head
  33. 33.🧺 Do we need a sunny open place for the shadow clock? (a) needed (b) not needed
  34. 34.True or false: turmeric powder is needed for the shadow clock. (a) True (b) False
  35. 35.🔦 Is your hand opaque, translucent or transparent? (a) transparent (b) opaque (c) translucent
  36. 36.🧺 Do we need chalk to mark shadows for the shadow clock? (a) needed (b) not needed
  37. 37.🔍 Which is the odd one out? (a) your hand (b) a brick (c) a book (d) clear glass
  38. 38.⚖️ Fair test — how does the shadow of a stick change through the day? What do we do with “the same stick”? (a) we measure it (b) we change it (c) we keep it the same
  39. 39.🧺 Which of these is needed for the shadow clock? (a) turmeric powder (b) yeast (c) chalk to mark shadows (d) a balloon
  40. 40.🧺 Do we need a balloon for the shadow clock? (a) needed (b) not needed

Answer key

  1. translucent
  2. butter paper
  3. look straight at the Sun
  4. True
  5. True
  6. a battery cell
  7. does not work well
  8. around noon
  9. not needed
  10. turmeric powder
  11. long
  12. a clock to check
  13. translucent
  14. tissue paper
  15. False
  16. the time of day
  17. shadow length
  18. needed
  19. True
  20. True
  21. a mirror
  22. False
  23. True
  24. not needed
  25. True
  26. frosted glass
  27. clear glass
  28. True
  29. False
  30. turmeric powder
  31. we measure it
  32. a cap or hat
  33. needed
  34. False
  35. opaque
  36. needed
  37. clear glass
  38. we keep it the same
  39. chalk to mark shadows
  40. not needed

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