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Shadow and Sundial Experiment Worksheet

Science experiments lesson 27: Shadows and a sundial · Set 686 · 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.🛟 What should you wear for a long time in the hot sun? (a) a cap or hat (b) a woollen sweater (c) a raincoat (d) nothing on your head
  2. 2.⚖️ 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
  3. 3.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the same stick is kept the same. (a) False (b) True
  4. 4.🔦 Which of these is opaque? (a) clear plastic film (b) your hand (c) frosted glass (d) clear glass
  5. 5.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) turmeric powder (b) a sunny open place (c) chalk to mark shadows (d) a straight stick
  6. 6.🔍 Which is the odd one out? (a) clear glass (b) your hand (c) a wooden board (d) a book
  7. 7.🧺 Do we need turmeric powder for the shadow clock? (a) not needed (b) needed
  8. 8.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a straight stick (b) a sunny open place (c) a battery cell (d) a clock to check
  9. 9.True or false: clean water is opaque. (a) False (b) True
  10. 10.True or false: yeast is needed for the shadow clock. (a) True (b) False
  11. 11.📘 Why does a shadow form? (a) the ground is dark (b) the object is cold (c) an object blocks light (d) light bends round it
  12. 12.🔍 Which is the odd one out? (a) oily paper (b) a brick (c) your hand (d) a wooden board
  13. 13.⚖️ 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
  14. 14.🛟 While watching shadows outdoors, what must you never do? (a) look straight at the Sun (b) mark with chalk (c) sit in the shade (d) wear a cap
  15. 15.True or false: a clock to check is not needed for the shadow clock. (a) False (b) True
  16. 16.True or false: yeast is not needed for the shadow clock. (a) True (b) False
  17. 17.🌞 When is a stick’s shadow the shortest? (a) around noon (b) early morning (c) at night (d) late evening
  18. 18.🧺 Do we need a balloon for the shadow clock? (a) not needed (b) needed
  19. 19.True or false: your hand is transparent. (a) True (b) False
  20. 20.True or false: clear plastic film is translucent. (a) False (b) True
  21. 21.🔮 Predict: the Sun is low in the evening sky. The stick’s shadow is ___. (a) round (b) short (c) long (d) missing
  22. 22.🧺 Which of these is not needed for the shadow clock? (a) a sunny open place (b) a mirror (c) a clock to check (d) a straight stick
  23. 23.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a clock to check (b) a straight stick (c) chalk to mark shadows (d) yeast
  24. 24.🔍 Which is the odd one out? (a) clear glass (b) air (c) clean water (d) frosted glass
  25. 25.⚖️ 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) shadow length (d) the time of day
  26. 26.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a balloon (b) a straight stick (c) chalk to mark shadows (d) a sunny open place
  27. 27.🕰️ What is a sundial used for? (a) weighing things (b) measuring rain (c) making rainbows (d) telling the time
  28. 28.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a clock to check (b) a sunny open place (c) a straight stick (d) a mirror
  29. 29.⚖️ 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 same spot
  30. 30.⚖️ 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) shadow length
  31. 31.🧺 Do we need a mirror for the shadow clock? (a) not needed (b) needed
  32. 32.True or false: a mirror is needed for the shadow clock. (a) True (b) False
  33. 33.True or false: a magnet is not needed for the shadow clock. (a) False (b) True
  34. 34.🔦 Is clear plastic film opaque, translucent or transparent? (a) translucent (b) opaque (c) transparent
  35. 35.🧺 Do we need a sunny open place for the shadow clock? (a) not needed (b) needed
  36. 36.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a sunny open place (b) a magnet (c) a straight stick (d) chalk to mark shadows
  37. 37.🔮 Predict: on a fully cloudy day, the sundial ___. (a) shows two times (b) runs faster (c) works better (d) does not work well
  38. 38.True or false: a battery cell is not needed for the shadow clock. (a) False (b) True
  39. 39.🔦 Is butter paper opaque, translucent or transparent? (a) opaque (b) transparent (c) translucent
  40. 40.🔦 Is a book opaque, translucent or transparent? (a) transparent (b) opaque (c) translucent

Answer key

  1. a cap or hat
  2. True
  3. True
  4. your hand
  5. turmeric powder
  6. clear glass
  7. not needed
  8. a battery cell
  9. False
  10. False
  11. an object blocks light
  12. oily paper
  13. we keep it the same
  14. look straight at the Sun
  15. False
  16. True
  17. around noon
  18. not needed
  19. False
  20. False
  21. long
  22. a mirror
  23. yeast
  24. frosted glass
  25. shadow length
  26. a balloon
  27. telling the time
  28. a mirror
  29. the same spot
  30. the time of day
  31. not needed
  32. False
  33. True
  34. transparent
  35. needed
  36. a magnet
  37. does not work well
  38. True
  39. translucent
  40. opaque

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