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Shadow and Sundial Experiment Worksheet

Science experiments lesson 27: Shadows and a sundial · Set 943 · 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.🔦 Is a steel plate opaque, translucent or transparent? (a) translucent (b) transparent (c) opaque
  2. 2.🧺 Which of these is needed for the shadow clock? (a) a mirror (b) a sunny open place (c) turmeric powder (d) yeast
  3. 3.🔦 Is a brick opaque, translucent or transparent? (a) translucent (b) transparent (c) opaque
  4. 4.🌅 In the morning the Sun is in the east. Which way does a shadow point? (a) north (b) east (c) up (d) west
  5. 5.🔍 Which is the odd one out? (a) a steel plate (b) a wooden board (c) your hand (d) frosted glass
  6. 6.⚖️ 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 keep it the same (c) we change it
  7. 7.🛟 What should you wear for a long time in the hot sun? (a) nothing on your head (b) a woollen sweater (c) a raincoat (d) a cap or hat
  8. 8.🔦 Which of these is opaque? (a) frosted glass (b) clear glass (c) butter paper (d) a brick
  9. 9.🔍 Which is the odd one out? (a) a brick (b) a book (c) clear glass (d) a wooden board
  10. 10.⚖️ 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
  11. 11.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) chalk to mark shadows (b) a battery cell (c) a clock to check (d) a straight stick
  12. 12.True or false: a battery cell is not needed for the shadow clock. (a) True (b) False
  13. 13.🔮 Predict: the Sun is low in the evening sky. The stick’s shadow is ___. (a) missing (b) round (c) long (d) short
  14. 14.True or false: yeast is needed for the shadow clock. (a) False (b) True
  15. 15.🧺 Do we need chalk to mark shadows for the shadow clock? (a) needed (b) not needed
  16. 16.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a straight stick (b) a sunny open place (c) a mirror (d) chalk to mark shadows
  17. 17.🧺 Which of these is not needed for the shadow clock? (a) a sunny open place (b) yeast (c) a clock to check (d) a straight stick
  18. 18.🔍 Which is the odd one out? (a) clean water (b) air (c) a steel plate (d) clear plastic film
  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 change it (b) we keep it the same (c) we measure it
  20. 20.🧺 Do we need a sunny open place for the shadow clock? (a) needed (b) not needed
  21. 21.True or false: a straight stick is needed for the shadow clock. (a) True (b) False
  22. 22.True or false: a wooden board is transparent. (a) False (b) True
  23. 23.📘 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
  24. 24.🔍 Which is the odd one out? (a) tissue paper (b) clear plastic film (c) oily paper (d) frosted glass
  25. 25.🔦 Which of these is translucent? (a) a wooden board (b) clean water (c) clear plastic film (d) frosted glass
  26. 26.🔍 Which is the odd one out? (a) a brick (b) oily paper (c) butter paper (d) tissue paper
  27. 27.True or false: turmeric powder is needed for the shadow clock. (a) False (b) True
  28. 28.⚖️ Fair test — how does the shadow of a stick change through the day? Which of these is kept the same? (a) the stick kept upright (b) shadow length (c) the time of day
  29. 29.🧺 Do we need a mirror for the shadow clock? (a) needed (b) not needed
  30. 30.True or false: yeast is not needed for the shadow clock. (a) False (b) True
  31. 31.🔮 Predict: you move a torch closer to your hand. The shadow on the wall gets ___. (a) coloured (b) bigger (c) smaller (d) brighter
  32. 32.🔍 Which is the odd one out? (a) frosted glass (b) a wooden board (c) butter paper (d) tissue paper
  33. 33.⚖️ 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
  34. 34.True or false: clear plastic film is transparent. (a) True (b) False
  35. 35.🛟 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
  36. 36.🧺 Do we need yeast for the shadow clock? (a) needed (b) not needed
  37. 37.True or false: tissue paper is translucent. (a) True (b) False
  38. 38.🔦 Is a wooden board opaque, translucent or transparent? (a) transparent (b) opaque (c) translucent
  39. 39.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a sunny open place (b) turmeric powder (c) a straight stick (d) chalk to mark shadows
  40. 40.🧺 Which of these is needed for the shadow clock? (a) a battery cell (b) turmeric powder (c) a magnet (d) a straight stick

Answer key

  1. opaque
  2. a sunny open place
  3. opaque
  4. west
  5. frosted glass
  6. we keep it the same
  7. a cap or hat
  8. a brick
  9. clear glass
  10. we change it
  11. a battery cell
  12. True
  13. long
  14. False
  15. needed
  16. a mirror
  17. yeast
  18. a steel plate
  19. we keep it the same
  20. needed
  21. True
  22. False
  23. an object blocks light
  24. clear plastic film
  25. frosted glass
  26. a brick
  27. False
  28. the stick kept upright
  29. not needed
  30. True
  31. bigger
  32. a wooden board
  33. we keep it the same
  34. True
  35. look straight at the Sun
  36. not needed
  37. True
  38. opaque
  39. turmeric powder
  40. a straight stick

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