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Shadow and Sundial Experiment Worksheet

Science experiments lesson 27: Shadows and a sundial · Set 592 · 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 what we measure? (a) shadow length (b) the same stick (c) the stick kept upright (d) the time of day
  2. 2.🧺 Do we need a straight stick for the shadow clock? (a) needed (b) not needed
  3. 3.🔍 Which is the odd one out? (a) clear glass (b) clear plastic film (c) oily paper (d) air
  4. 4.🔮 Predict: on a fully cloudy day, the sundial ___. (a) runs faster (b) shows two times (c) does not work well (d) works better
  5. 5.🔍 Which is the odd one out? (a) oily paper (b) frosted glass (c) tissue paper (d) a book
  6. 6.🧺 Which of these is needed for the shadow clock? (a) turmeric powder (b) a straight stick (c) a magnet (d) a balloon
  7. 7.🔦 Which of these is opaque? (a) butter paper (b) a wooden board (c) air (d) clear glass
  8. 8.True or false: a balloon is not needed for the shadow clock. (a) False (b) True
  9. 9.True or false: a balloon is needed for the shadow clock. (a) True (b) False
  10. 10.🔦 Which of these is opaque? (a) your hand (b) air (c) clean water (d) tissue paper
  11. 11.🔍 Which is the odd one out? (a) a brick (b) a steel plate (c) clear glass (d) a book
  12. 12.🛟 While watching shadows outdoors, what must you never do? (a) look straight at the Sun (b) mark with chalk (c) sit in the shade (d) wear a cap
  13. 13.🔮 Predict: the Sun is low in the evening sky. The stick’s shadow is ___. (a) missing (b) long (c) round (d) short
  14. 14.🔍 Which is the odd one out? (a) air (b) clear glass (c) clear plastic film (d) a wooden board
  15. 15.🧺 Do we need a battery cell for the shadow clock? (a) needed (b) not needed
  16. 16.🧺 Do we need a sunny open place for the shadow clock? (a) not needed (b) needed
  17. 17.⚖️ 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
  18. 18.⚖️ Fair test — how does the shadow of a stick change through the day? Which of these is the one thing we change? (a) the stick kept upright (b) shadow length (c) the same stick (d) the time of day
  19. 19.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a straight stick (b) chalk to mark shadows (c) a magnet (d) a clock to check
  20. 20.🔦 Which of these is translucent? (a) a wooden board (b) clear glass (c) air (d) oily paper
  21. 21.True or false: your hand is opaque. (a) False (b) True
  22. 22.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the time of day is kept the same. (a) True (b) False
  23. 23.True or false: yeast is needed for the shadow clock. (a) True (b) False
  24. 24.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the stick kept upright is what we measure. (a) False (b) True
  25. 25.🔍 Which is the odd one out? (a) air (b) clean water (c) a steel plate (d) clear glass
  26. 26.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a sunny open place (b) a clock to check (c) a balloon (d) chalk to mark shadows
  27. 27.🧺 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) yeast
  28. 28.🔦 Is butter paper opaque, translucent or transparent? (a) translucent (b) opaque (c) transparent
  29. 29.🌅 In the morning the Sun is in the east. Which way does a shadow point? (a) up (b) north (c) east (d) west
  30. 30.🧺 Do we need turmeric powder for the shadow clock? (a) not needed (b) needed
  31. 31.⚖️ 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
  32. 32.True or false: clean water is transparent. (a) False (b) True
  33. 33.🧺 Which of these is needed for the shadow clock? (a) a magnet (b) turmeric powder (c) a sunny open place (d) a balloon
  34. 34.🧺 Which of these is not needed for the shadow clock? (a) turmeric powder (b) a clock to check (c) a sunny open place (d) a straight stick
  35. 35.True or false: a mirror is not needed for the shadow clock. (a) False (b) True
  36. 36.🔦 Is a book opaque, translucent or transparent? (a) transparent (b) opaque (c) translucent
  37. 37.🛟 What should you wear for a long time in the hot sun? (a) a raincoat (b) a cap or hat (c) a woollen sweater (d) nothing on your head
  38. 38.⚖️ 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
  39. 39.True or false: butter paper is opaque. (a) True (b) False
  40. 40.🔦 Is a brick opaque, translucent or transparent? (a) translucent (b) transparent (c) opaque

Answer key

  1. shadow length
  2. needed
  3. oily paper
  4. does not work well
  5. a book
  6. a straight stick
  7. a wooden board
  8. True
  9. False
  10. your hand
  11. clear glass
  12. look straight at the Sun
  13. long
  14. a wooden board
  15. not needed
  16. needed
  17. we keep it the same
  18. the time of day
  19. a magnet
  20. oily paper
  21. True
  22. False
  23. False
  24. False
  25. a steel plate
  26. a balloon
  27. yeast
  28. translucent
  29. west
  30. not needed
  31. we change it
  32. True
  33. a sunny open place
  34. turmeric powder
  35. True
  36. opaque
  37. a cap or hat
  38. we keep it the same
  39. False
  40. opaque

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