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Shadow and Sundial Experiment Worksheet

Science experiments lesson 27: Shadows and a sundial · Set 83 · 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.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a straight stick (b) turmeric powder (c) a sunny open place (d) chalk to mark shadows
  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.🌅 In the morning the Sun is in the east. Which way does a shadow point? (a) up (b) east (c) north (d) west
  4. 4.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a balloon (b) chalk to mark shadows (c) a straight stick (d) a sunny open place
  5. 5.⚖️ 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) shadow length (c) the same stick (d) the time of day
  6. 6.True or false: clean water is translucent. (a) False (b) True
  7. 7.📘 Why does a shadow form? (a) the ground is dark (b) an object blocks light (c) light bends round it (d) the object is cold
  8. 8.⚖️ 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
  9. 9.🔮 Predict: you move a torch closer to your hand. The shadow on the wall gets ___. (a) bigger (b) smaller (c) coloured (d) brighter
  10. 10.🔦 Which of these is opaque? (a) a book (b) oily paper (c) butter paper (d) frosted glass
  11. 11.⚖️ Fair test — how does the shadow of a stick change through the day? Which of these is kept the same? (a) the time of day (b) the stick kept upright (c) shadow length
  12. 12.🔦 Which of these is translucent? (a) a book (b) oily paper (c) a wooden board (d) a steel plate
  13. 13.🧺 Do we need a straight stick for the shadow clock? (a) not needed (b) needed
  14. 14.🔦 Which of these is opaque? (a) butter paper (b) frosted glass (c) a steel plate (d) oily paper
  15. 15.🧺 Do we need a clock to check for the shadow clock? (a) not needed (b) needed
  16. 16.🧺 Which of these is needed for the shadow clock? (a) a magnet (b) a sunny open place (c) a battery cell (d) a mirror
  17. 17.True or false: a clock to check is needed for the shadow clock. (a) False (b) True
  18. 18.🧺 Which of these is needed for the shadow clock? (a) a clock to check (b) a magnet (c) a balloon (d) turmeric powder
  19. 19.🔍 Which is the odd one out? (a) a book (b) a wooden board (c) your hand (d) butter paper
  20. 20.True or false: a battery cell is not needed for the shadow clock. (a) False (b) True
  21. 21.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the same stick is what we measure. (a) False (b) True
  22. 22.⚖️ Fair test — how does the shadow of a stick change through the day? What do we do with “the time of day”? (a) we keep it the same (b) we change it (c) we measure it
  23. 23.🔦 Is a wooden board opaque, translucent or transparent? (a) translucent (b) transparent (c) opaque
  24. 24.🔍 Which is the odd one out? (a) clear glass (b) a book (c) a brick (d) your hand
  25. 25.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a magnet (b) a straight stick (c) a clock to check (d) chalk to mark shadows
  26. 26.🕰️ What is a sundial used for? (a) measuring rain (b) making rainbows (c) weighing things (d) telling the time
  27. 27.🔮 Predict: the Sun is low in the evening sky. The stick’s shadow is ___. (a) long (b) round (c) missing (d) short
  28. 28.🔍 Which is the odd one out? (a) frosted glass (b) butter paper (c) clean water (d) oily paper
  29. 29.True or false: a book is transparent. (a) True (b) False
  30. 30.🔦 Is clear plastic film opaque, translucent or transparent? (a) translucent (b) opaque (c) transparent
  31. 31.True or false: a brick is transparent. (a) False (b) True
  32. 32.🔦 Is butter paper opaque, translucent or transparent? (a) translucent (b) transparent (c) opaque
  33. 33.🌍 Why does the stick’s shadow move during the day? (a) Earth keeps spinning (b) the stick walks (c) the stick grows (d) the ground slides
  34. 34.🔍 Which is the odd one out? (a) clean water (b) air (c) frosted glass (d) clear plastic film
  35. 35.⚖️ 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
  36. 36.🛟 While watching shadows outdoors, what must you never do? (a) wear a cap (b) sit in the shade (c) mark with chalk (d) look straight at the Sun
  37. 37.True or false: a steel plate is opaque. (a) False (b) True
  38. 38.True or false: yeast is not needed for the shadow clock. (a) False (b) True
  39. 39.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a battery cell (b) a straight stick (c) chalk to mark shadows (d) a sunny open place
  40. 40.True or false: clean water is opaque. (a) False (b) True

Answer key

  1. turmeric powder
  2. a cap or hat
  3. west
  4. a balloon
  5. the time of day
  6. False
  7. an object blocks light
  8. False
  9. bigger
  10. a book
  11. the stick kept upright
  12. oily paper
  13. needed
  14. a steel plate
  15. needed
  16. a sunny open place
  17. True
  18. a clock to check
  19. butter paper
  20. True
  21. False
  22. we change it
  23. opaque
  24. clear glass
  25. a magnet
  26. telling the time
  27. long
  28. clean water
  29. False
  30. transparent
  31. False
  32. translucent
  33. Earth keeps spinning
  34. frosted glass
  35. we keep it the same
  36. look straight at the Sun
  37. True
  38. True
  39. a battery cell
  40. False

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