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Shadow and Sundial Experiment Worksheet

Science experiments lesson 27: Shadows and a sundial · Set 30 · 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.🛟 While watching shadows outdoors, what must you never do? (a) wear a cap (b) look straight at the Sun (c) sit in the shade (d) mark with chalk
  2. 2.🔦 Is butter paper opaque, translucent or transparent? (a) opaque (b) translucent (c) transparent
  3. 3.🛟 What should you wear for a long time in the hot sun? (a) nothing on your head (b) a raincoat (c) a cap or hat (d) a woollen sweater
  4. 4.🔮 Predict: the Sun is low in the evening sky. The stick’s shadow is ___. (a) missing (b) long (c) round (d) short
  5. 5.🔮 Predict: you move a torch closer to your hand. The shadow on the wall gets ___. (a) brighter (b) smaller (c) coloured (d) bigger
  6. 6.True or false: turmeric powder is not needed for the shadow clock. (a) True (b) False
  7. 7.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the same spot is what we measure. (a) False (b) True
  8. 8.⚖️ Fair test — how does the shadow of a stick change through the day? What do we do with “the same spot”? (a) we keep it the same (b) we change it (c) we measure it
  9. 9.True or false: a balloon is needed for the shadow clock. (a) False (b) True
  10. 10.🧺 Which of these is not needed for the shadow clock? (a) chalk to mark shadows (b) a straight stick (c) a magnet (d) a clock to check
  11. 11.⚖️ Fair test — how does the shadow of a stick change through the day? What do we do with “the stick kept upright”? (a) we measure it (b) we change it (c) we keep it the same
  12. 12.🧺 Which of these is needed for the shadow clock? (a) yeast (b) a mirror (c) chalk to mark shadows (d) a battery cell
  13. 13.🧺 Do we need chalk to mark shadows for the shadow clock? (a) not needed (b) needed
  14. 14.⚖️ Fair test — how does the shadow of a stick change through the day? Which of these is the one thing we change? (a) the time of day (b) the same stick (c) the stick kept upright (d) shadow length
  15. 15.⚖️ Fair test — how does the shadow of a stick change through the day? What do we do with “shadow length”? (a) we measure it (b) we change it (c) we keep it the same
  16. 16.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a clock to check (b) a straight stick (c) yeast (d) a sunny open place
  17. 17.🧺 Which of these is needed for the shadow clock? (a) yeast (b) a magnet (c) a balloon (d) a clock to check
  18. 18.🔦 Is a wooden board opaque, translucent or transparent? (a) translucent (b) opaque (c) transparent
  19. 19.True or false: a wooden board is opaque. (a) True (b) False
  20. 20.🔦 Which of these is translucent? (a) butter paper (b) a steel plate (c) a book (d) clean water
  21. 21.True or false: a battery cell is needed for the shadow clock. (a) False (b) True
  22. 22.⚖️ 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
  23. 23.🔍 Which is the odd one out? (a) tissue paper (b) air (c) clear plastic film (d) clear glass
  24. 24.🔦 Is a book opaque, translucent or transparent? (a) opaque (b) translucent (c) transparent
  25. 25.🔦 Which of these is opaque? (a) butter paper (b) frosted glass (c) a steel plate (d) tissue paper
  26. 26.🔍 Which is the odd one out? (a) your hand (b) a wooden board (c) air (d) a brick
  27. 27.🔦 Is tissue paper opaque, translucent or transparent? (a) opaque (b) transparent (c) translucent
  28. 28.True or false: a balloon is not needed for the shadow clock. (a) False (b) True
  29. 29.🔦 Is your hand opaque, translucent or transparent? (a) translucent (b) transparent (c) opaque
  30. 30.🌞 When is a stick’s shadow the shortest? (a) at night (b) early morning (c) late evening (d) around noon
  31. 31.🔦 Which of these is transparent? (a) your hand (b) oily paper (c) clear plastic film (d) a steel plate
  32. 32.🧺 Do we need yeast for the shadow clock? (a) not needed (b) needed
  33. 33.🔦 Which of these is opaque? (a) your hand (b) clean water (c) frosted glass (d) clear glass
  34. 34.🧺 Do we need a mirror for the shadow clock? (a) not needed (b) needed
  35. 35.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the time of day is what we measure. (a) False (b) True
  36. 36.🕰️ What is a sundial used for? (a) weighing things (b) telling the time (c) measuring rain (d) making rainbows
  37. 37.🔍 Which is the odd one out? (a) your hand (b) a steel plate (c) a brick (d) clear glass
  38. 38.True or false: yeast is not needed for the shadow clock. (a) True (b) False
  39. 39.🧺 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) a balloon (d) a clock to check
  40. 40.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) chalk to mark shadows (b) a mirror (c) a straight stick (d) a clock to check

Answer key

  1. look straight at the Sun
  2. translucent
  3. a cap or hat
  4. long
  5. bigger
  6. True
  7. False
  8. we keep it the same
  9. False
  10. a magnet
  11. we keep it the same
  12. chalk to mark shadows
  13. needed
  14. the time of day
  15. we measure it
  16. yeast
  17. a clock to check
  18. opaque
  19. True
  20. butter paper
  21. False
  22. the stick kept upright
  23. tissue paper
  24. opaque
  25. a steel plate
  26. air
  27. translucent
  28. True
  29. opaque
  30. around noon
  31. clear plastic film
  32. not needed
  33. your hand
  34. not needed
  35. False
  36. telling the time
  37. clear glass
  38. True
  39. a balloon
  40. a mirror

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