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Shadow and Sundial Experiment Worksheet

Science experiments lesson 27: Shadows and a sundial · Set 284 · 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.📘 Why does a shadow form? (a) the object is cold (b) the ground is dark (c) an object blocks light (d) light bends round it
  2. 2.🔦 Is air opaque, translucent or transparent? (a) opaque (b) transparent (c) translucent
  3. 3.🔍 Which is the odd one out? (a) a brick (b) your hand (c) a book (d) clear plastic film
  4. 4.🧺 Which of these is needed for the shadow clock? (a) a mirror (b) yeast (c) a straight stick (d) a battery cell
  5. 5.🔦 Which of these is opaque? (a) clean water (b) butter paper (c) tissue paper (d) a brick
  6. 6.🧺 Do we need a straight stick for the shadow clock? (a) not needed (b) needed
  7. 7.🧺 Do we need a sunny open place for the shadow clock? (a) not needed (b) needed
  8. 8.⚖️ 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) True (b) False
  9. 9.🧺 Which of these is not needed for the shadow clock? (a) a sunny open place (b) a clock to check (c) a balloon (d) chalk to mark shadows
  10. 10.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a sunny open place (b) a mirror (c) a straight stick (d) a clock to check
  11. 11.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a clock to check (b) chalk to mark shadows (c) a straight stick (d) a magnet
  12. 12.🧺 Do we need a battery cell for the shadow clock? (a) not needed (b) needed
  13. 13.True or false: a balloon is not needed for the shadow clock. (a) True (b) False
  14. 14.🛟 While watching shadows outdoors, what must you never do? (a) mark with chalk (b) wear a cap (c) sit in the shade (d) look straight at the Sun
  15. 15.🔍 Which is the odd one out? (a) butter paper (b) clear glass (c) frosted glass (d) oily paper
  16. 16.🔦 Is frosted glass opaque, translucent or transparent? (a) transparent (b) translucent (c) opaque
  17. 17.True or false: a clock to check is needed for the shadow clock. (a) False (b) True
  18. 18.True or false: air is translucent. (a) False (b) True
  19. 19.🛟 What should you wear for a long time in the hot sun? (a) a raincoat (b) a cap or hat (c) nothing on your head (d) a woollen sweater
  20. 20.⚖️ Fair test — how does the shadow of a stick change through the day? Which of these is what we measure? (a) the stick kept upright (b) the time of day (c) the same spot (d) shadow length
  21. 21.🧺 Which of these is needed for the shadow clock? (a) turmeric powder (b) a clock to check (c) yeast (d) a mirror
  22. 22.🧺 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 straight stick (d) a battery cell
  23. 23.🔮 Predict: the Sun is low in the evening sky. The stick’s shadow is ___. (a) short (b) round (c) long (d) missing
  24. 24.True or false: yeast is needed for the shadow clock. (a) True (b) False
  25. 25.🔍 Which is the odd one out? (a) oily paper (b) a wooden board (c) a brick (d) a book
  26. 26.⚖️ 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) False (b) True
  27. 27.True or false: a straight stick is needed for the shadow clock. (a) True (b) False
  28. 28.True or false: a straight stick is not needed for the shadow clock. (a) True (b) False
  29. 29.⚖️ 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 measure it (c) we change it
  30. 30.⚖️ 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
  31. 31.🔦 Is a brick opaque, translucent or transparent? (a) translucent (b) transparent (c) opaque
  32. 32.True or false: butter paper is translucent. (a) False (b) True
  33. 33.🔦 Which of these is translucent? (a) a wooden board (b) clean water (c) oily paper (d) your hand
  34. 34.🌅 In the morning the Sun is in the east. Which way does a shadow point? (a) north (b) west (c) up (d) east
  35. 35.🔍 Which is the odd one out? (a) butter paper (b) frosted glass (c) oily paper (d) a book
  36. 36.True or false: your hand is transparent. (a) True (b) False
  37. 37.⚖️ Fair test — how does the shadow of a stick change through the day? What do we do with “the same stick”? (a) we measure it (b) we change it (c) we keep it the same
  38. 38.🧺 Do we need a mirror for the shadow clock? (a) not needed (b) needed
  39. 39.🔦 Is clear plastic film opaque, translucent or transparent? (a) translucent (b) transparent (c) opaque
  40. 40.🌞 When is a stick’s shadow the shortest? (a) at night (b) around noon (c) late evening (d) early morning

Answer key

  1. an object blocks light
  2. transparent
  3. clear plastic film
  4. a straight stick
  5. a brick
  6. needed
  7. needed
  8. True
  9. a balloon
  10. a mirror
  11. a magnet
  12. not needed
  13. True
  14. look straight at the Sun
  15. clear glass
  16. translucent
  17. True
  18. False
  19. a cap or hat
  20. shadow length
  21. a clock to check
  22. a battery cell
  23. long
  24. False
  25. oily paper
  26. True
  27. True
  28. False
  29. we keep it the same
  30. True
  31. opaque
  32. True
  33. oily paper
  34. west
  35. a book
  36. False
  37. we keep it the same
  38. not needed
  39. transparent
  40. around noon

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