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Shadow and Sundial Experiment Worksheet

Science experiments lesson 27: Shadows and a sundial · Set 875 · 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) early morning (b) around noon (c) at night (d) late evening
  2. 2.🔦 Is a brick opaque, translucent or transparent? (a) transparent (b) opaque (c) translucent
  3. 3.🔦 Which of these is opaque? (a) frosted glass (b) clean water (c) air (d) a book
  4. 4.🧺 Which of these is not needed for the shadow clock? (a) a sunny open place (b) chalk to mark shadows (c) a straight stick (d) turmeric powder
  5. 5.🕰️ What is a sundial used for? (a) weighing things (b) making rainbows (c) telling the time (d) measuring rain
  6. 6.🔦 Which of these is transparent? (a) frosted glass (b) clear plastic film (c) butter paper (d) tissue paper
  7. 7.🔦 Is clean water opaque, translucent or transparent? (a) translucent (b) opaque (c) transparent
  8. 8.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a straight stick (b) a clock to check (c) chalk to mark shadows (d) yeast
  9. 9.⚖️ 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 measure it (c) we change it
  10. 10.True or false: a steel plate is translucent. (a) False (b) True
  11. 11.🧺 Which of these is needed for the shadow clock? (a) a clock to check (b) turmeric powder (c) a balloon (d) a battery cell
  12. 12.🔦 Which of these is translucent? (a) tissue paper (b) air (c) your hand (d) a steel plate
  13. 13.🔮 Predict: on a fully cloudy day, the sundial ___. (a) works better (b) shows two times (c) does not work well (d) runs faster
  14. 14.True or false: your hand is transparent. (a) False (b) True
  15. 15.⚖️ 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
  16. 16.🛟 What should you wear for a long time in the hot sun? (a) a cap or hat (b) a woollen sweater (c) nothing on your head (d) a raincoat
  17. 17.🧺 Do we need yeast for the shadow clock? (a) not needed (b) needed
  18. 18.🔍 Which is the odd one out? (a) a book (b) a wooden board (c) your hand (d) clear glass
  19. 19.🔦 Is clear plastic film opaque, translucent or transparent? (a) translucent (b) transparent (c) opaque
  20. 20.🧺 Which of these is needed for the shadow clock? (a) a battery cell (b) chalk to mark shadows (c) a balloon (d) turmeric powder
  21. 21.🧺 Do we need a battery cell for the shadow clock? (a) not needed (b) needed
  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 magnet (d) chalk to mark shadows
  23. 23.True or false: yeast is not needed for the shadow clock. (a) False (b) True
  24. 24.🔮 Predict: you move a torch closer to your hand. The shadow on the wall gets ___. (a) bigger (b) smaller (c) brighter (d) coloured
  25. 25.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the same spot is kept the same. (a) False (b) True
  26. 26.🧺 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
  27. 27.🔦 Is oily paper opaque, translucent or transparent? (a) opaque (b) transparent (c) translucent
  28. 28.⚖️ 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 stick kept upright (c) the same stick (d) the time of day
  29. 29.🧺 Do we need a straight stick for the shadow clock? (a) needed (b) not needed
  30. 30.🛟 While watching shadows outdoors, what must you never do? (a) look straight at the Sun (b) sit in the shade (c) mark with chalk (d) wear a cap
  31. 31.🔮 Predict: the Sun is low in the evening sky. The stick’s shadow is ___. (a) round (b) short (c) missing (d) long
  32. 32.True or false: your hand is translucent. (a) True (b) False
  33. 33.⚖️ Fair test — how does the shadow of a stick change through the day? What do we do with “the same spot”? (a) we measure it (b) we keep it the same (c) we change it
  34. 34.True or false: a sunny open place is not needed for the shadow clock. (a) False (b) True
  35. 35.🔦 Which of these is opaque? (a) your hand (b) clear glass (c) butter paper (d) clear plastic film
  36. 36.🔦 Is your hand opaque, translucent or transparent? (a) translucent (b) transparent (c) opaque
  37. 37.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a battery cell (b) a clock to check (c) a straight stick (d) chalk to mark shadows
  38. 38.🔍 Which is the odd one out? (a) a wooden board (b) frosted glass (c) tissue paper (d) butter paper
  39. 39.🌅 In the morning the Sun is in the east. Which way does a shadow point? (a) west (b) north (c) east (d) up
  40. 40.True or false: a book is transparent. (a) True (b) False

Answer key

  1. around noon
  2. opaque
  3. a book
  4. turmeric powder
  5. telling the time
  6. clear plastic film
  7. transparent
  8. yeast
  9. we change it
  10. False
  11. a clock to check
  12. tissue paper
  13. does not work well
  14. False
  15. we keep it the same
  16. a cap or hat
  17. not needed
  18. clear glass
  19. transparent
  20. chalk to mark shadows
  21. not needed
  22. a magnet
  23. True
  24. bigger
  25. True
  26. a balloon
  27. translucent
  28. shadow length
  29. needed
  30. look straight at the Sun
  31. long
  32. False
  33. we keep it the same
  34. False
  35. your hand
  36. opaque
  37. a battery cell
  38. a wooden board
  39. west
  40. False

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