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Shadow and Sundial Experiment Worksheet

Science experiments lesson 27: Shadows and a sundial · Set 928 · 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.⚖️ 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 time of day (d) the same stick
  2. 2.🔍 Which is the odd one out? (a) air (b) oily paper (c) clean water (d) clear glass
  3. 3.🔦 Is a wooden board opaque, translucent or transparent? (a) transparent (b) translucent (c) opaque
  4. 4.🛟 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
  5. 5.🧺 Do we need a sunny open place for the shadow clock? (a) not needed (b) needed
  6. 6.True or false: a straight stick is not needed for the shadow clock. (a) True (b) False
  7. 7.🔦 Which of these is opaque? (a) oily paper (b) tissue paper (c) clean water (d) a steel plate
  8. 8.🧺 Which of these is needed for the shadow clock? (a) a mirror (b) yeast (c) chalk to mark shadows (d) a balloon
  9. 9.⚖️ 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) False (b) True
  10. 10.🔮 Predict: you move a torch closer to your hand. The shadow on the wall gets ___. (a) brighter (b) coloured (c) bigger (d) smaller
  11. 11.🧺 Which of these is needed for the shadow clock? (a) a straight stick (b) a battery cell (c) yeast (d) a magnet
  12. 12.🧺 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 balloon
  13. 13.True or false: a clock to check is needed for the shadow clock. (a) True (b) False
  14. 14.⚖️ 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 keep it the same (c) we change it
  15. 15.🧺 Which of these is not needed for the shadow clock? (a) a straight stick (b) a balloon (c) a sunny open place (d) a clock to check
  16. 16.True or false: a balloon is needed for the shadow clock. (a) False (b) True
  17. 17.📘 Why does a shadow form? (a) light bends round it (b) the ground is dark (c) an object blocks light (d) the object is cold
  18. 18.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a clock to check (b) a straight stick (c) turmeric powder (d) a sunny open place
  19. 19.⚖️ Fair test — how does the shadow of a stick change through the day? Which of these is what we measure? (a) shadow length (b) the same stick (c) the same spot (d) the time of day
  20. 20.🌅 In the morning the Sun is in the east. Which way does a shadow point? (a) west (b) north (c) east (d) up
  21. 21.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the same spot is the one thing we change. (a) False (b) True
  22. 22.🛟 What should you wear for a long time in the hot sun? (a) a woollen sweater (b) nothing on your head (c) a cap or hat (d) a raincoat
  23. 23.True or false: clear glass is opaque. (a) False (b) True
  24. 24.🔦 Is oily paper opaque, translucent or transparent? (a) opaque (b) transparent (c) translucent
  25. 25.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the same stick is kept the same. (a) True (b) False
  26. 26.True or false: a brick is opaque. (a) False (b) True
  27. 27.🔦 Which of these is translucent? (a) clean water (b) frosted glass (c) your hand (d) a wooden board
  28. 28.🕰️ What is a sundial used for? (a) measuring rain (b) making rainbows (c) telling the time (d) weighing things
  29. 29.True or false: a brick is translucent. (a) False (b) True
  30. 30.True or false: a magnet is not needed for the shadow clock. (a) False (b) True
  31. 31.⚖️ Fair test — how does the shadow of a stick change through the day? What do we do with “the same spot”? (a) we change it (b) we measure it (c) we keep it the same
  32. 32.🔦 Is butter paper opaque, translucent or transparent? (a) opaque (b) transparent (c) translucent
  33. 33.🧺 Do we need yeast for the shadow clock? (a) not needed (b) needed
  34. 34.🔮 Predict: the Sun is low in the evening sky. The stick’s shadow is ___. (a) missing (b) round (c) short (d) long
  35. 35.True or false: tissue paper is opaque. (a) True (b) False
  36. 36.🔍 Which is the odd one out? (a) clear glass (b) a brick (c) a book (d) a steel plate
  37. 37.True or false: your hand is opaque. (a) False (b) True
  38. 38.🔦 Which of these is translucent? (a) a wooden board (b) air (c) clean water (d) tissue paper
  39. 39.⚖️ 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
  40. 40.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a clock to check (b) yeast (c) a straight stick (d) chalk to mark shadows

Answer key

  1. the time of day
  2. oily paper
  3. opaque
  4. look straight at the Sun
  5. needed
  6. False
  7. a steel plate
  8. chalk to mark shadows
  9. True
  10. bigger
  11. a straight stick
  12. a balloon
  13. True
  14. we keep it the same
  15. a balloon
  16. False
  17. an object blocks light
  18. turmeric powder
  19. shadow length
  20. west
  21. False
  22. a cap or hat
  23. False
  24. translucent
  25. True
  26. True
  27. frosted glass
  28. telling the time
  29. False
  30. True
  31. we keep it the same
  32. translucent
  33. not needed
  34. long
  35. False
  36. clear glass
  37. True
  38. tissue paper
  39. False
  40. yeast

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