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Shadow and Sundial Experiment Worksheet

Science experiments lesson 27: Shadows and a sundial · Set 612 · 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? True or false: the same spot is what we measure. (a) True (b) False
  2. 2.⚖️ 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
  3. 3.🛟 While watching shadows outdoors, what must you never do? (a) wear a cap (b) mark with chalk (c) sit in the shade (d) look straight at the Sun
  4. 4.🔦 Which of these is translucent? (a) frosted glass (b) clean water (c) air (d) clear plastic film
  5. 5.🧺 Which of these is needed for the shadow clock? (a) yeast (b) a magnet (c) a straight stick (d) a balloon
  6. 6.🔦 Is clear plastic film opaque, translucent or transparent? (a) translucent (b) transparent (c) opaque
  7. 7.⚖️ Fair test — how does the shadow of a stick change through the day? What do we do with “shadow length”? (a) we keep it the same (b) we measure it (c) we change it
  8. 8.True or false: frosted glass is transparent. (a) False (b) True
  9. 9.True or false: a wooden board is transparent. (a) True (b) False
  10. 10.🧺 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 magnet (d) a clock to check
  11. 11.📘 Why does a shadow form? (a) light bends round it (b) the ground is dark (c) an object blocks light (d) the object is cold
  12. 12.🔦 Which of these is translucent? (a) a brick (b) a book (c) butter paper (d) clear plastic film
  13. 13.🔍 Which is the odd one out? (a) a steel plate (b) tissue paper (c) a wooden board (d) a brick
  14. 14.True or false: a battery cell is needed for the shadow clock. (a) False (b) True
  15. 15.🔍 Which is the odd one out? (a) a brick (b) a book (c) butter paper (d) a steel plate
  16. 16.🧺 Do we need a mirror for the shadow clock? (a) not needed (b) needed
  17. 17.True or false: butter paper is translucent. (a) True (b) False
  18. 18.🛟 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
  19. 19.🧺 Which of these is not needed for the shadow clock? (a) a mirror (b) chalk to mark shadows (c) a straight stick (d) a clock to check
  20. 20.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a battery cell (b) a clock to check (c) chalk to mark shadows (d) a sunny open place
  21. 21.🧺 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) chalk to mark shadows (d) a mirror
  22. 22.🕰️ What is a sundial used for? (a) weighing things (b) telling the time (c) making rainbows (d) measuring rain
  23. 23.True or false: tissue paper is opaque. (a) False (b) True
  24. 24.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the same spot is kept the same. (a) True (b) False
  25. 25.True or false: a mirror is not needed for the shadow clock. (a) False (b) True
  26. 26.🌞 When is a stick’s shadow the shortest? (a) early morning (b) around noon (c) at night (d) late evening
  27. 27.🔦 Is frosted glass opaque, translucent or transparent? (a) transparent (b) opaque (c) translucent
  28. 28.⚖️ 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 same spot (c) the stick kept upright (d) the time of day
  29. 29.True or false: yeast is needed for the shadow clock. (a) False (b) True
  30. 30.🔮 Predict: the Sun is low in the evening sky. The stick’s shadow is ___. (a) round (b) missing (c) long (d) short
  31. 31.🔦 Which of these is translucent? (a) a wooden board (b) your hand (c) oily paper (d) a book
  32. 32.True or false: a book is opaque. (a) False (b) True
  33. 33.🔦 Which of these is opaque? (a) clear plastic film (b) frosted glass (c) a brick (d) butter paper
  34. 34.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the stick kept upright is kept the same. (a) True (b) False
  35. 35.True or false: a clock to check is not needed for the shadow clock. (a) True (b) False
  36. 36.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) chalk to mark shadows (b) a clock to check (c) a sunny open place (d) turmeric powder
  37. 37.🔍 Which is the odd one out? (a) clear glass (b) your hand (c) air (d) clear plastic film
  38. 38.🔮 Predict: on a fully cloudy day, the sundial ___. (a) shows two times (b) does not work well (c) works better (d) runs faster
  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.🧺 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 balloon

Answer key

  1. False
  2. True
  3. look straight at the Sun
  4. frosted glass
  5. a straight stick
  6. transparent
  7. we measure it
  8. False
  9. False
  10. a magnet
  11. an object blocks light
  12. butter paper
  13. tissue paper
  14. False
  15. butter paper
  16. not needed
  17. True
  18. a cap or hat
  19. a mirror
  20. a battery cell
  21. a mirror
  22. telling the time
  23. False
  24. True
  25. True
  26. around noon
  27. translucent
  28. the time of day
  29. False
  30. long
  31. oily paper
  32. True
  33. a brick
  34. True
  35. False
  36. turmeric powder
  37. your hand
  38. does not work well
  39. west
  40. a balloon

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