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Shadow and Sundial Experiment Worksheet

Science experiments lesson 27: Shadows and a sundial · Set 844 · 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.🔮 Predict: on a fully cloudy day, the sundial ___. (a) runs faster (b) works better (c) shows two times (d) does not work well
  2. 2.🌅 In the morning the Sun is in the east. Which way does a shadow point? (a) east (b) west (c) north (d) up
  3. 3.🔮 Predict: the Sun is low in the evening sky. The stick’s shadow is ___. (a) round (b) long (c) short (d) missing
  4. 4.True or false: turmeric powder is needed for the shadow clock. (a) True (b) False
  5. 5.🛟 While watching shadows outdoors, what must you never do? (a) wear a cap (b) sit in the shade (c) look straight at the Sun (d) mark with chalk
  6. 6.🔦 Is a wooden board opaque, translucent or transparent? (a) translucent (b) opaque (c) transparent
  7. 7.🔍 Which is the odd one out? (a) your hand (b) clean water (c) clear glass (d) clear plastic film
  8. 8.🌞 When is a stick’s shadow the shortest? (a) at night (b) early morning (c) late evening (d) around noon
  9. 9.🔍 Which is the odd one out? (a) frosted glass (b) oily paper (c) butter paper (d) a book
  10. 10.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a clock to check (b) a straight stick (c) a magnet (d) a sunny open place
  11. 11.⚖️ Fair test — how does the shadow of a stick change through the day? Which of these is the one thing we change? (a) shadow length (b) the same spot (c) the time of day (d) the stick kept upright
  12. 12.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a sunny open place (b) a balloon (c) chalk to mark shadows (d) a clock to check
  13. 13.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the same stick is kept the same. (a) False (b) True
  14. 14.🔦 Is frosted glass opaque, translucent or transparent? (a) translucent (b) transparent (c) opaque
  15. 15.⚖️ 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
  16. 16.🔍 Which is the odd one out? (a) oily paper (b) butter paper (c) tissue paper (d) a brick
  17. 17.True or false: clear plastic film is translucent. (a) True (b) False
  18. 18.⚖️ 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) True (b) False
  19. 19.🧺 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) yeast (d) a straight stick
  20. 20.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a battery cell (b) a sunny open place (c) a straight stick (d) chalk to mark shadows
  21. 21.🔍 Which is the odd one out? (a) a wooden board (b) frosted glass (c) a brick (d) a steel plate
  22. 22.🧺 Do we need a mirror for the shadow clock? (a) not needed (b) needed
  23. 23.True or false: clean water is opaque. (a) False (b) True
  24. 24.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: shadow length is what we measure. (a) False (b) True
  25. 25.True or false: a sunny open place is not needed for the shadow clock. (a) False (b) True
  26. 26.🧺 Do we need a clock to check for the shadow clock? (a) needed (b) not needed
  27. 27.🕰️ What is a sundial used for? (a) measuring rain (b) making rainbows (c) telling the time (d) weighing things
  28. 28.🧺 Do we need yeast for the shadow clock? (a) not needed (b) needed
  29. 29.⚖️ 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
  30. 30.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: shadow length is kept the same. (a) False (b) True
  31. 31.🔍 Which is the odd one out? (a) tissue paper (b) butter paper (c) oily paper (d) a wooden board
  32. 32.🔦 Which of these is transparent? (a) oily paper (b) a book (c) clear plastic film (d) a steel plate
  33. 33.🔮 Predict: you move a torch closer to your hand. The shadow on the wall gets ___. (a) coloured (b) bigger (c) smaller (d) brighter
  34. 34.🧺 Which of these is not needed for the shadow clock? (a) yeast (b) chalk to mark shadows (c) a sunny open place (d) a straight stick
  35. 35.🔦 Is a brick opaque, translucent or transparent? (a) opaque (b) transparent (c) translucent
  36. 36.🛟 What should you wear for a long time in the hot sun? (a) a raincoat (b) nothing on your head (c) a woollen sweater (d) a cap or hat
  37. 37.🧺 Do we need a magnet for the shadow clock? (a) needed (b) not needed
  38. 38.True or false: clean water is transparent. (a) False (b) True
  39. 39.🔍 Which is the odd one out? (a) oily paper (b) frosted glass (c) butter paper (d) clean water
  40. 40.🔦 Which of these is opaque? (a) frosted glass (b) your hand (c) clear plastic film (d) clean water

Answer key

  1. does not work well
  2. west
  3. long
  4. False
  5. look straight at the Sun
  6. opaque
  7. your hand
  8. around noon
  9. a book
  10. a magnet
  11. the time of day
  12. a balloon
  13. True
  14. translucent
  15. True
  16. a brick
  17. False
  18. False
  19. yeast
  20. a battery cell
  21. frosted glass
  22. not needed
  23. False
  24. True
  25. False
  26. needed
  27. telling the time
  28. not needed
  29. we measure it
  30. False
  31. a wooden board
  32. clear plastic film
  33. bigger
  34. yeast
  35. opaque
  36. a cap or hat
  37. not needed
  38. True
  39. clean water
  40. your hand

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