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Shadow and Sundial Experiment Worksheet

Science experiments lesson 27: Shadows and a sundial · Set 938 · 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.📘 Why does a shadow form? (a) an object blocks light (b) the object is cold (c) the ground is dark (d) light bends round it
  2. 2.🔍 Which is the odd one out? (a) tissue paper (b) a brick (c) butter paper (d) frosted glass
  3. 3.🔦 Is tissue paper opaque, translucent or transparent? (a) transparent (b) translucent (c) opaque
  4. 4.🔮 Predict: the Sun is low in the evening sky. The stick’s shadow is ___. (a) short (b) missing (c) long (d) round
  5. 5.🧺 Do we need a mirror for the shadow clock? (a) not needed (b) needed
  6. 6.🧺 Do we need a balloon for the shadow clock? (a) not needed (b) needed
  7. 7.⚖️ Fair test — how does the shadow of a stick change through the day? What do we do with “the same spot”? (a) we change it (b) we measure it (c) we keep it the same
  8. 8.🧺 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 sunny open place (d) a magnet
  9. 9.True or false: a magnet is needed for the shadow clock. (a) False (b) True
  10. 10.🔦 Which of these is translucent? (a) clear plastic film (b) air (c) clear glass (d) tissue paper
  11. 11.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: shadow length is the one thing we change. (a) True (b) False
  12. 12.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: shadow length is kept the same. (a) True (b) False
  13. 13.🌍 Why does the stick’s shadow move during the day? (a) the stick grows (b) the stick walks (c) Earth keeps spinning (d) the ground slides
  14. 14.🧺 Which of these is not needed for the shadow clock? (a) a sunny open place (b) chalk to mark shadows (c) a magnet (d) a straight stick
  15. 15.⚖️ Fair test — how does the shadow of a stick change through the day? What do we do with “the time of day”? (a) we keep it the same (b) we measure it (c) we change it
  16. 16.🧺 Do we need a magnet for the shadow clock? (a) needed (b) not needed
  17. 17.🛟 What should you wear for a long time in the hot sun? (a) a cap or hat (b) nothing on your head (c) a woollen sweater (d) a raincoat
  18. 18.True or false: a battery cell is needed for the shadow clock. (a) True (b) False
  19. 19.🌞 When is a stick’s shadow the shortest? (a) around noon (b) early morning (c) late evening (d) at night
  20. 20.🧺 Do we need a battery cell for the shadow clock? (a) not needed (b) needed
  21. 21.🔍 Which is the odd one out? (a) a wooden board (b) a book (c) a brick (d) butter paper
  22. 22.🧺 Which of these is not needed for the shadow clock? (a) a clock to check (b) a straight stick (c) a mirror (d) a sunny open place
  23. 23.True or false: chalk to mark shadows is needed for the shadow clock. (a) False (b) True
  24. 24.🕰️ What is a sundial used for? (a) making rainbows (b) telling the time (c) weighing things (d) measuring rain
  25. 25.🛟 While watching shadows outdoors, what must you never do? (a) sit in the shade (b) look straight at the Sun (c) wear a cap (d) mark with chalk
  26. 26.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a battery cell (b) a sunny open place (c) chalk to mark shadows (d) a clock to check
  27. 27.🧺 Which of these is needed for the shadow clock? (a) a straight stick (b) a magnet (c) a balloon (d) turmeric powder
  28. 28.⚖️ 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
  29. 29.🧺 Do we need a clock to check for the shadow clock? (a) not needed (b) needed
  30. 30.True or false: air is transparent. (a) False (b) True
  31. 31.🧺 Do we need a sunny open place for the shadow clock? (a) not needed (b) needed
  32. 32.🧺 Do we need turmeric powder for the shadow clock? (a) needed (b) not needed
  33. 33.True or false: oily paper is opaque. (a) True (b) False
  34. 34.🔍 Which is the odd one out? (a) tissue paper (b) oily paper (c) frosted glass (d) air
  35. 35.True or false: a mirror is not needed for the shadow clock. (a) False (b) True
  36. 36.🔍 Which is the odd one out? (a) a book (b) a brick (c) a steel plate (d) oily paper
  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 change it (b) we measure it (c) we keep it the same
  38. 38.⚖️ 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
  39. 39.🧺 Which of these is not needed for the shadow clock? (a) a sunny open place (b) a battery cell (c) a clock to check (d) a straight stick
  40. 40.⚖️ 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

Answer key

  1. an object blocks light
  2. a brick
  3. translucent
  4. long
  5. not needed
  6. not needed
  7. we keep it the same
  8. a magnet
  9. False
  10. tissue paper
  11. False
  12. False
  13. Earth keeps spinning
  14. a magnet
  15. we change it
  16. not needed
  17. a cap or hat
  18. False
  19. around noon
  20. not needed
  21. butter paper
  22. a mirror
  23. True
  24. telling the time
  25. look straight at the Sun
  26. a battery cell
  27. a straight stick
  28. True
  29. needed
  30. True
  31. needed
  32. not needed
  33. False
  34. air
  35. True
  36. oily paper
  37. we keep it the same
  38. True
  39. a battery cell
  40. we measure it

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