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Shadow and Sundial Experiment Worksheet

Science experiments lesson 27: Shadows and a sundial · Set 67 · 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 stick is kept the same. (a) True (b) False
  2. 2.📘 Why does a shadow form? (a) light bends round it (b) an object blocks light (c) the ground is dark (d) the object is cold
  3. 3.True or false: clear plastic film is transparent. (a) False (b) True
  4. 4.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a clock to check (b) a battery cell (c) chalk to mark shadows (d) a straight stick
  5. 5.⚖️ 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) False (b) True
  6. 6.🛟 While watching shadows outdoors, what must you never do? (a) look straight at the Sun (b) wear a cap (c) sit in the shade (d) mark with chalk
  7. 7.🌞 When is a stick’s shadow the shortest? (a) around noon (b) at night (c) early morning (d) late evening
  8. 8.🛟 What should you wear for a long time in the hot sun? (a) nothing on your head (b) a cap or hat (c) a woollen sweater (d) a raincoat
  9. 9.🔍 Which is the odd one out? (a) a wooden board (b) air (c) clear glass (d) clear plastic film
  10. 10.True or false: a steel plate is opaque. (a) False (b) True
  11. 11.🧺 Do we need a sunny open place for the shadow clock? (a) not needed (b) needed
  12. 12.🕰️ What is a sundial used for? (a) making rainbows (b) telling the time (c) measuring rain (d) weighing things
  13. 13.🔍 Which is the odd one out? (a) air (b) clear glass (c) clean water (d) your hand
  14. 14.⚖️ 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 keep it the same (c) we change it
  15. 15.⚖️ Fair test — how does the shadow of a stick change through the day? What do we do with “the same stick”? (a) we keep it the same (b) we change it (c) we measure it
  16. 16.🧺 Do we need a straight stick for the shadow clock? (a) needed (b) not needed
  17. 17.🧺 Do we need a balloon for the shadow clock? (a) not needed (b) needed
  18. 18.🧺 Do we need a clock to check for the shadow clock? (a) not needed (b) needed
  19. 19.True or false: clean water is opaque. (a) True (b) False
  20. 20.🔦 Is butter paper opaque, translucent or transparent? (a) translucent (b) opaque (c) transparent
  21. 21.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a clock to check (b) a mirror (c) chalk to mark shadows (d) a sunny open place
  22. 22.🔍 Which is the odd one out? (a) tissue paper (b) clear plastic film (c) clear glass (d) air
  23. 23.🔮 Predict: on a fully cloudy day, the sundial ___. (a) does not work well (b) works better (c) shows two times (d) runs faster
  24. 24.⚖️ 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 measure it (c) we keep it the same
  25. 25.True or false: a clock to check is not needed for the shadow clock. (a) False (b) True
  26. 26.🔦 Which of these is translucent? (a) a brick (b) a wooden board (c) tissue paper (d) a steel plate
  27. 27.🧺 Which of these is not needed for the shadow clock? (a) turmeric powder (b) chalk to mark shadows (c) a clock to check (d) a sunny open place
  28. 28.🔦 Is a wooden board opaque, translucent or transparent? (a) opaque (b) transparent (c) translucent
  29. 29.⚖️ 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) True (b) False
  30. 30.True or false: a balloon is needed for the shadow clock. (a) False (b) True
  31. 31.🔮 Predict: the Sun is low in the evening sky. The stick’s shadow is ___. (a) missing (b) long (c) round (d) short
  32. 32.🧺 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
  33. 33.🧺 Do we need turmeric powder for the shadow clock? (a) needed (b) not needed
  34. 34.True or false: a book is opaque. (a) False (b) True
  35. 35.🔍 Which is the odd one out? (a) butter paper (b) a book (c) tissue paper (d) frosted glass
  36. 36.🧺 Which of these is needed for the shadow clock? (a) a straight stick (b) a balloon (c) a magnet (d) a mirror
  37. 37.⚖️ Fair test — how does the shadow of a stick change through the day? What do we do with “the stick kept upright”? (a) we measure it (b) we change it (c) we keep it the same
  38. 38.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a clock to check (b) a straight stick (c) yeast (d) a sunny open place
  39. 39.🔦 Is a book opaque, translucent or transparent? (a) transparent (b) opaque (c) translucent
  40. 40.🔦 Which of these is opaque? (a) tissue paper (b) a brick (c) butter paper (d) clear plastic film

Answer key

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

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