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Shadow and Sundial Experiment Worksheet

Science experiments lesson 27: Shadows and a sundial · Set 883 · 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.🌞 When is a stick’s shadow the shortest? (a) at night (b) early morning (c) around noon (d) late evening
  2. 2.🔮 Predict: on a fully cloudy day, the sundial ___. (a) runs faster (b) does not work well (c) works better (d) shows two times
  3. 3.🧺 Do we need a battery cell for the shadow clock? (a) not needed (b) needed
  4. 4.🛟 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
  5. 5.🌅 In the morning the Sun is in the east. Which way does a shadow point? (a) east (b) north (c) up (d) west
  6. 6.⚖️ 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 measure it (c) we keep it the same
  7. 7.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the time of day is kept the same. (a) True (b) False
  8. 8.⚖️ 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 spot (b) the stick kept upright (c) shadow length (d) the time of day
  9. 9.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a sunny open place (b) a straight stick (c) chalk to mark shadows (d) a mirror
  10. 10.🔦 Which of these is opaque? (a) air (b) clear plastic film (c) frosted glass (d) a brick
  11. 11.🔦 Is your hand opaque, translucent or transparent? (a) transparent (b) translucent (c) opaque
  12. 12.🧺 Do we need chalk to mark shadows for the shadow clock? (a) needed (b) not needed
  13. 13.True or false: a sunny open place is not needed for the shadow clock. (a) False (b) True
  14. 14.🔦 Which of these is translucent? (a) a book (b) clear plastic film (c) frosted glass (d) a steel plate
  15. 15.🔦 Which of these is translucent? (a) a book (b) a wooden board (c) tissue paper (d) a steel plate
  16. 16.🔮 Predict: you move a torch closer to your hand. The shadow on the wall gets ___. (a) brighter (b) smaller (c) bigger (d) coloured
  17. 17.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: shadow length is kept the same. (a) False (b) True
  18. 18.🧺 Which of these is needed for the shadow clock? (a) a battery cell (b) a clock to check (c) turmeric powder (d) a magnet
  19. 19.⚖️ 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) True (b) False
  20. 20.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: shadow length is what we measure. (a) True (b) False
  21. 21.🔦 Which of these is opaque? (a) air (b) clear plastic film (c) your hand (d) clean water
  22. 22.🔍 Which is the odd one out? (a) a steel plate (b) frosted glass (c) oily paper (d) tissue paper
  23. 23.True or false: your hand is opaque. (a) False (b) True
  24. 24.True or false: turmeric powder is not needed for the shadow clock. (a) True (b) False
  25. 25.🧺 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 magnet
  26. 26.True or false: tissue paper is translucent. (a) True (b) False
  27. 27.🔮 Predict: the Sun is low in the evening sky. The stick’s shadow is ___. (a) round (b) missing (c) long (d) short
  28. 28.🧺 Do we need turmeric powder for the shadow clock? (a) not needed (b) needed
  29. 29.🔦 Is clean water opaque, translucent or transparent? (a) opaque (b) translucent (c) transparent
  30. 30.🔦 Is a book opaque, translucent or transparent? (a) translucent (b) opaque (c) transparent
  31. 31.True or false: air is transparent. (a) True (b) False
  32. 32.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a clock to check (b) a straight stick (c) a balloon (d) chalk to mark shadows
  33. 33.🧺 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) turmeric powder (d) a straight stick
  34. 34.🔦 Which of these is translucent? (a) oily paper (b) your hand (c) air (d) a wooden board
  35. 35.🧺 Do we need a balloon for the shadow clock? (a) needed (b) not needed
  36. 36.🔍 Which is the odd one out? (a) oily paper (b) tissue paper (c) a brick (d) butter paper
  37. 37.True or false: a straight stick is not needed for the shadow clock. (a) True (b) False
  38. 38.True or false: a magnet is not needed for the shadow clock. (a) False (b) True
  39. 39.🧺 Do we need a magnet for the shadow clock? (a) needed (b) not needed
  40. 40.True or false: oily paper is transparent. (a) True (b) False

Answer key

  1. around noon
  2. does not work well
  3. not needed
  4. look straight at the Sun
  5. west
  6. we measure it
  7. False
  8. the time of day
  9. a mirror
  10. a brick
  11. opaque
  12. needed
  13. False
  14. frosted glass
  15. tissue paper
  16. bigger
  17. False
  18. a clock to check
  19. False
  20. True
  21. your hand
  22. a steel plate
  23. True
  24. True
  25. a magnet
  26. True
  27. long
  28. not needed
  29. transparent
  30. opaque
  31. True
  32. a balloon
  33. turmeric powder
  34. oily paper
  35. not needed
  36. a brick
  37. False
  38. True
  39. not needed
  40. False

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