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Shadow and Sundial Experiment Worksheet

Science experiments lesson 27: Shadows and a sundial · Set 296 · 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.🧺 Do we need a sunny open place for the shadow clock? (a) not needed (b) needed
  2. 2.🛟 What should you wear for a long time in the hot sun? (a) a raincoat (b) a woollen sweater (c) nothing on your head (d) a cap or hat
  3. 3.🕰️ What is a sundial used for? (a) measuring rain (b) making rainbows (c) telling the time (d) weighing things
  4. 4.🧺 Which of these is needed for the shadow clock? (a) turmeric powder (b) a balloon (c) chalk to mark shadows (d) a magnet
  5. 5.🔮 Predict: on a fully cloudy day, the sundial ___. (a) does not work well (b) runs faster (c) shows two times (d) works better
  6. 6.True or false: a steel plate is translucent. (a) True (b) False
  7. 7.🧺 Which of these is needed for the shadow clock? (a) a magnet (b) a balloon (c) a battery cell (d) a clock to check
  8. 8.🔮 Predict: you move a torch closer to your hand. The shadow on the wall gets ___. (a) brighter (b) coloured (c) smaller (d) bigger
  9. 9.🌅 In the morning the Sun is in the east. Which way does a shadow point? (a) up (b) north (c) east (d) west
  10. 10.True or false: a clock to check is needed for the shadow clock. (a) True (b) False
  11. 11.True or false: yeast is needed for the shadow clock. (a) True (b) False
  12. 12.🧺 Do we need a battery cell for the shadow clock? (a) not needed (b) needed
  13. 13.⚖️ 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 stick kept upright (c) the time of day
  14. 14.🔍 Which is the odd one out? (a) tissue paper (b) oily paper (c) butter paper (d) a brick
  15. 15.⚖️ Fair test — how does the shadow of a stick change through the day? Which of these is what we measure? (a) the same stick (b) shadow length (c) the time of day (d) the same spot
  16. 16.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a sunny open place (b) a straight stick (c) a clock to check (d) a battery cell
  17. 17.🔍 Which is the odd one out? (a) butter paper (b) tissue paper (c) a wooden board (d) frosted glass
  18. 18.🧺 Do we need a clock to check for the shadow clock? (a) not needed (b) needed
  19. 19.🔦 Which of these is opaque? (a) clean water (b) tissue paper (c) a wooden board (d) clear glass
  20. 20.🌍 Why does the stick’s shadow move during the day? (a) Earth keeps spinning (b) the ground slides (c) the stick grows (d) the stick walks
  21. 21.📘 Why does a shadow form? (a) light bends round it (b) the ground is dark (c) the object is cold (d) an object blocks light
  22. 22.🧺 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 clock to check (d) a mirror
  23. 23.🔦 Is a book opaque, translucent or transparent? (a) opaque (b) transparent (c) translucent
  24. 24.🧺 Which of these is not needed for the shadow clock? (a) a mirror (b) chalk to mark shadows (c) a sunny open place (d) a straight stick
  25. 25.🔦 Is clear glass opaque, translucent or transparent? (a) transparent (b) translucent (c) opaque
  26. 26.🔦 Which of these is translucent? (a) your hand (b) air (c) a steel plate (d) oily paper
  27. 27.🛟 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
  28. 28.True or false: a book is opaque. (a) True (b) False
  29. 29.🧺 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) a magnet
  30. 30.🔍 Which is the odd one out? (a) butter paper (b) oily paper (c) tissue paper (d) clean water
  31. 31.True or false: a mirror is needed for the shadow clock. (a) True (b) False
  32. 32.🔍 Which is the odd one out? (a) a steel plate (b) your hand (c) tissue paper (d) a brick
  33. 33.🧺 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 balloon (d) a straight stick
  34. 34.🧺 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 clock to check (d) turmeric powder
  35. 35.🧺 Which of these is needed for the shadow clock? (a) a battery cell (b) yeast (c) a sunny open place (d) a mirror
  36. 36.🔦 Is a steel plate opaque, translucent or transparent? (a) opaque (b) translucent (c) transparent
  37. 37.True or false: turmeric powder is not needed for the shadow clock. (a) False (b) True
  38. 38.🔦 Which of these is transparent? (a) a book (b) frosted glass (c) clean water (d) butter paper
  39. 39.🧺 Which of these is not needed for the shadow clock? (a) chalk to mark shadows (b) a sunny open place (c) a straight stick (d) turmeric powder
  40. 40.🧺 Do we need turmeric powder for the shadow clock? (a) needed (b) not needed

Answer key

  1. needed
  2. a cap or hat
  3. telling the time
  4. chalk to mark shadows
  5. does not work well
  6. False
  7. a clock to check
  8. bigger
  9. west
  10. True
  11. False
  12. not needed
  13. the stick kept upright
  14. a brick
  15. shadow length
  16. a battery cell
  17. a wooden board
  18. needed
  19. a wooden board
  20. Earth keeps spinning
  21. an object blocks light
  22. a mirror
  23. opaque
  24. a mirror
  25. transparent
  26. oily paper
  27. look straight at the Sun
  28. True
  29. a magnet
  30. clean water
  31. False
  32. tissue paper
  33. a balloon
  34. turmeric powder
  35. a sunny open place
  36. opaque
  37. True
  38. clean water
  39. turmeric powder
  40. not needed

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