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Shadow and Sundial Experiment Worksheet

Science experiments lesson 27: Shadows and a sundial · Set 175 · 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.🧺 Which of these is not needed for the shadow clock? (a) a sunny open place (b) a clock to check (c) a mirror (d) a straight stick
  2. 2.🔦 Is frosted glass opaque, translucent or transparent? (a) translucent (b) transparent (c) opaque
  3. 3.⚖️ 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
  4. 4.True or false: chalk to mark shadows is not needed for the shadow clock. (a) True (b) False
  5. 5.🧺 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 battery cell (d) a straight stick
  6. 6.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) chalk to mark shadows (b) yeast (c) a straight stick (d) a clock to check
  7. 7.🧺 Do we need a sunny open place for the shadow clock? (a) not needed (b) needed
  8. 8.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a straight stick (b) a balloon (c) a clock to check (d) a sunny open place
  9. 9.🧺 Which of these is needed for the shadow clock? (a) turmeric powder (b) a battery cell (c) a straight stick (d) a mirror
  10. 10.🛟 What should you wear for a long time in the hot sun? (a) nothing on your head (b) a raincoat (c) a woollen sweater (d) a cap or hat
  11. 11.🔍 Which is the odd one out? (a) tissue paper (b) clear plastic film (c) frosted glass (d) butter paper
  12. 12.🧺 Do we need yeast for the shadow clock? (a) needed (b) not needed
  13. 13.True or false: a brick is opaque. (a) True (b) False
  14. 14.🔍 Which is the odd one out? (a) a steel plate (b) oily paper (c) a wooden board (d) a book
  15. 15.🧺 Which of these is not needed for the shadow clock? (a) a straight stick (b) a magnet (c) a clock to check (d) chalk to mark shadows
  16. 16.⚖️ Fair test — how does the shadow of a stick change through the day? What do we do with “the time of day”? (a) we measure it (b) we keep it the same (c) we change it
  17. 17.⚖️ 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 same stick (c) the same spot (d) shadow length
  18. 18.⚖️ 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
  19. 19.⚖️ 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
  20. 20.🔦 Which of these is translucent? (a) air (b) a book (c) butter paper (d) a steel plate
  21. 21.🔍 Which is the odd one out? (a) clear glass (b) clean water (c) air (d) a book
  22. 22.🧺 Do we need a mirror for the shadow clock? (a) needed (b) not needed
  23. 23.🔦 Is oily paper opaque, translucent or transparent? (a) opaque (b) transparent (c) translucent
  24. 24.🔍 Which is the odd one out? (a) your hand (b) a steel plate (c) clean water (d) a book
  25. 25.🌞 When is a stick’s shadow the shortest? (a) around noon (b) late evening (c) early morning (d) at night
  26. 26.True or false: a mirror is needed for the shadow clock. (a) True (b) False
  27. 27.📘 Why does a shadow form? (a) the ground is dark (b) the object is cold (c) an object blocks light (d) light bends round it
  28. 28.🌍 Why does the stick’s shadow move during the day? (a) the stick grows (b) the stick walks (c) the ground slides (d) Earth keeps spinning
  29. 29.🛟 While watching shadows outdoors, what must you never do? (a) sit in the shade (b) mark with chalk (c) wear a cap (d) look straight at the Sun
  30. 30.🔦 Which of these is translucent? (a) your hand (b) a brick (c) tissue paper (d) a wooden board
  31. 31.True or false: air is opaque. (a) True (b) False
  32. 32.🔍 Which is the odd one out? (a) frosted glass (b) butter paper (c) a brick (d) oily paper
  33. 33.🔮 Predict: you move a torch closer to your hand. The shadow on the wall gets ___. (a) brighter (b) bigger (c) coloured (d) smaller
  34. 34.⚖️ 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
  35. 35.🧺 Which of these is needed for the shadow clock? (a) a clock to check (b) a mirror (c) yeast (d) a balloon
  36. 36.True or false: butter paper is translucent. (a) True (b) False
  37. 37.🔦 Which of these is translucent? (a) clean water (b) a wooden board (c) a book (d) oily paper
  38. 38.🌅 In the morning the Sun is in the east. Which way does a shadow point? (a) north (b) east (c) west (d) up
  39. 39.🧺 Do we need a magnet for the shadow clock? (a) needed (b) not needed
  40. 40.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the same stick is what we measure. (a) True (b) False

Answer key

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

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