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Shadow and Sundial Experiment Worksheet

Science experiments lesson 27: Shadows and a sundial · Set 95 · 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.🔦 Is frosted glass opaque, translucent or transparent? (a) translucent (b) opaque (c) transparent
  2. 2.🔍 Which is the odd one out? (a) a book (b) butter paper (c) tissue paper (d) oily paper
  3. 3.🔮 Predict: the Sun is low in the evening sky. The stick’s shadow is ___. (a) long (b) missing (c) round (d) short
  4. 4.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a mirror (b) a clock to check (c) a straight stick (d) a sunny open place
  5. 5.🌞 When is a stick’s shadow the shortest? (a) at night (b) around noon (c) early morning (d) late evening
  6. 6.🧺 Which of these is needed for the shadow clock? (a) yeast (b) a magnet (c) a straight stick (d) a balloon
  7. 7.⚖️ 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 keep it the same (c) we measure it
  8. 8.True or false: air is transparent. (a) True (b) False
  9. 9.🛟 What should you wear for a long time in the hot sun? (a) a raincoat (b) a woollen sweater (c) a cap or hat (d) nothing on your head
  10. 10.⚖️ 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
  11. 11.🧺 Which of these is needed for the shadow clock? (a) a magnet (b) a mirror (c) a sunny open place (d) a balloon
  12. 12.🛟 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
  13. 13.⚖️ Fair test — how does the shadow of a stick change through the day? Which of these is what we measure? (a) the time of day (b) the same stick (c) the stick kept upright (d) shadow length
  14. 14.🧺 Do we need a mirror for the shadow clock? (a) not needed (b) needed
  15. 15.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the same spot is kept the same. (a) False (b) True
  16. 16.🔍 Which is the odd one out? (a) a brick (b) a steel plate (c) your hand (d) air
  17. 17.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a magnet (b) a clock to check (c) chalk to mark shadows (d) a sunny open place
  18. 18.True or false: air is opaque. (a) False (b) True
  19. 19.True or false: a mirror is not needed for the shadow clock. (a) True (b) False
  20. 20.True or false: a clock to check is needed for the shadow clock. (a) False (b) True
  21. 21.🔮 Predict: on a fully cloudy day, the sundial ___. (a) works better (b) runs faster (c) does not work well (d) shows two times
  22. 22.🌅 In the morning the Sun is in the east. Which way does a shadow point? (a) north (b) up (c) east (d) west
  23. 23.🔦 Is a steel plate opaque, translucent or transparent? (a) transparent (b) translucent (c) opaque
  24. 24.🔍 Which is the odd one out? (a) frosted glass (b) oily paper (c) butter paper (d) your hand
  25. 25.🔮 Predict: you move a torch closer to your hand. The shadow on the wall gets ___. (a) brighter (b) bigger (c) coloured (d) smaller
  26. 26.True or false: butter paper is translucent. (a) False (b) True
  27. 27.True or false: clean water is transparent. (a) False (b) True
  28. 28.⚖️ Fair test — how does the shadow of a stick change through the day? Which of these is kept the same? (a) the stick kept upright (b) shadow length (c) the time of day
  29. 29.🔦 Which of these is translucent? (a) clean water (b) a book (c) oily paper (d) clear plastic film
  30. 30.🔦 Which of these is opaque? (a) oily paper (b) air (c) a wooden board (d) butter paper
  31. 31.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a battery cell (b) a clock to check (c) chalk to mark shadows (d) a straight stick
  32. 32.🧺 Do we need turmeric powder for the shadow clock? (a) needed (b) not needed
  33. 33.🔍 Which is the odd one out? (a) clear glass (b) clean water (c) air (d) butter paper
  34. 34.🕰️ What is a sundial used for? (a) making rainbows (b) weighing things (c) measuring rain (d) telling the time
  35. 35.📘 Why does a shadow form? (a) an object blocks light (b) light bends round it (c) the ground is dark (d) the object is cold
  36. 36.True or false: a magnet is not needed for the shadow clock. (a) True (b) False
  37. 37.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the same stick is the one thing we change. (a) False (b) True
  38. 38.🔍 Which is the odd one out? (a) oily paper (b) butter paper (c) clear glass (d) tissue paper
  39. 39.🔍 Which is the odd one out? (a) clear plastic film (b) a brick (c) a book (d) a steel plate
  40. 40.⚖️ Fair test — how does the shadow of a stick change through the day? What do we do with “the time of day”? (a) we measure it (b) we keep it the same (c) we change it

Answer key

  1. translucent
  2. a book
  3. long
  4. a mirror
  5. around noon
  6. a straight stick
  7. we keep it the same
  8. True
  9. a cap or hat
  10. False
  11. a sunny open place
  12. look straight at the Sun
  13. shadow length
  14. not needed
  15. True
  16. air
  17. a magnet
  18. False
  19. True
  20. True
  21. does not work well
  22. west
  23. opaque
  24. your hand
  25. bigger
  26. True
  27. True
  28. the stick kept upright
  29. oily paper
  30. a wooden board
  31. a battery cell
  32. not needed
  33. butter paper
  34. telling the time
  35. an object blocks light
  36. True
  37. False
  38. clear glass
  39. clear plastic film
  40. we change it

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