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Shadow and Sundial Experiment Worksheet

Science experiments lesson 27: Shadows and a sundial · Set 742 · 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.🔦 Which of these is opaque? (a) clear plastic film (b) clear glass (c) butter paper (d) a wooden board
  2. 2.🔮 Predict: the Sun is low in the evening sky. The stick’s shadow is ___. (a) round (b) short (c) missing (d) long
  3. 3.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) chalk to mark shadows (b) a straight stick (c) a mirror (d) a sunny open place
  4. 4.True or false: butter paper is transparent. (a) True (b) False
  5. 5.🔦 Which of these is translucent? (a) a book (b) clear glass (c) butter paper (d) your hand
  6. 6.🌞 When is a stick’s shadow the shortest? (a) late evening (b) around noon (c) early morning (d) at night
  7. 7.🧺 Do we need chalk to mark shadows for the shadow clock? (a) needed (b) not needed
  8. 8.🔮 Predict: on a fully cloudy day, the sundial ___. (a) works better (b) does not work well (c) runs faster (d) shows two times
  9. 9.🧺 Which of these is needed for the shadow clock? (a) a sunny open place (b) a mirror (c) yeast (d) a balloon
  10. 10.🛟 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
  11. 11.🔍 Which is the odd one out? (a) a book (b) clean water (c) air (d) clear plastic film
  12. 12.⚖️ 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 change it (c) we keep it the same
  13. 13.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the same stick is the one thing we change. (a) True (b) False
  14. 14.🧺 Which of these is needed for the shadow clock? (a) yeast (b) a balloon (c) a straight stick (d) a battery cell
  15. 15.True or false: a mirror is needed for the shadow clock. (a) True (b) False
  16. 16.🛟 What should you wear for a long time in the hot sun? (a) a raincoat (b) a woollen sweater (c) a cap or hat (d) nothing on your head
  17. 17.⚖️ Fair test — how does the shadow of a stick change through the day? What do we do with “shadow length”? (a) we change it (b) we keep it the same (c) we measure it
  18. 18.🌅 In the morning the Sun is in the east. Which way does a shadow point? (a) north (b) east (c) up (d) west
  19. 19.🧺 Which of these is not needed for the shadow clock? (a) chalk to mark shadows (b) a straight stick (c) a magnet (d) a sunny open place
  20. 20.True or false: yeast is needed for the shadow clock. (a) False (b) True
  21. 21.True or false: a magnet is not needed for the shadow clock. (a) True (b) False
  22. 22.⚖️ 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) shadow length (c) the stick kept upright
  23. 23.True or false: a book is opaque. (a) False (b) True
  24. 24.🔍 Which is the odd one out? (a) a steel plate (b) frosted glass (c) a book (d) your hand
  25. 25.🧺 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 straight stick (d) a battery cell
  26. 26.🧺 Do we need a balloon for the shadow clock? (a) not needed (b) needed
  27. 27.🔍 Which is the odd one out? (a) clear glass (b) a book (c) a steel plate (d) a wooden board
  28. 28.🔮 Predict: you move a torch closer to your hand. The shadow on the wall gets ___. (a) brighter (b) smaller (c) bigger (d) coloured
  29. 29.True or false: a sunny open place is not needed for the shadow clock. (a) True (b) False
  30. 30.⚖️ 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
  31. 31.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) chalk to mark shadows (b) yeast (c) a sunny open place (d) a clock to check
  32. 32.⚖️ 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 stick (b) the stick kept upright (c) the same spot (d) the time of day
  33. 33.True or false: chalk to mark shadows is needed for the shadow clock. (a) True (b) False
  34. 34.True or false: yeast is not needed for the shadow clock. (a) True (b) False
  35. 35.🔦 Which of these is transparent? (a) tissue paper (b) oily paper (c) butter paper (d) clean water
  36. 36.True or false: clean water is opaque. (a) False (b) True
  37. 37.True or false: a balloon is not needed for the shadow clock. (a) True (b) False
  38. 38.🕰️ What is a sundial used for? (a) weighing things (b) telling the time (c) making rainbows (d) measuring rain
  39. 39.🔍 Which is the odd one out? (a) frosted glass (b) butter paper (c) tissue paper (d) a steel plate
  40. 40.🔦 Which of these is translucent? (a) a book (b) frosted glass (c) your hand (d) clean water

Answer key

  1. a wooden board
  2. long
  3. a mirror
  4. False
  5. butter paper
  6. around noon
  7. needed
  8. does not work well
  9. a sunny open place
  10. look straight at the Sun
  11. a book
  12. we keep it the same
  13. False
  14. a straight stick
  15. False
  16. a cap or hat
  17. we measure it
  18. west
  19. a magnet
  20. False
  21. True
  22. the stick kept upright
  23. True
  24. frosted glass
  25. a battery cell
  26. not needed
  27. clear glass
  28. bigger
  29. False
  30. True
  31. yeast
  32. the time of day
  33. True
  34. True
  35. clean water
  36. False
  37. True
  38. telling the time
  39. a steel plate
  40. frosted glass

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