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Shadow and Sundial Experiment Worksheet

Science experiments lesson 27: Shadows and a sundial · Set 795 · 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 is the odd one out? (a) a brick (b) your hand (c) clean water (d) a book
  2. 2.True or false: a battery cell is needed for the shadow clock. (a) False (b) True
  3. 3.🔦 Which of these is translucent? (a) tissue paper (b) a book (c) a brick (d) clear glass
  4. 4.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a sunny open place (b) a magnet (c) chalk to mark shadows (d) a clock to check
  5. 5.🔮 Predict: you move a torch closer to your hand. The shadow on the wall gets ___. (a) smaller (b) bigger (c) coloured (d) brighter
  6. 6.🧺 Which of these is needed for the shadow clock? (a) yeast (b) a battery cell (c) a straight stick (d) a balloon
  7. 7.🔦 Is clear glass opaque, translucent or transparent? (a) opaque (b) transparent (c) translucent
  8. 8.True or false: oily paper is transparent. (a) False (b) True
  9. 9.⚖️ 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
  10. 10.🧺 Do we need a sunny open place for the shadow clock? (a) not needed (b) needed
  11. 11.True or false: clear glass is translucent. (a) False (b) True
  12. 12.🔦 Is air opaque, translucent or transparent? (a) translucent (b) opaque (c) transparent
  13. 13.True or false: a straight stick is not needed for the shadow clock. (a) False (b) True
  14. 14.🔍 Which is the odd one out? (a) air (b) clean water (c) clear plastic film (d) a brick
  15. 15.⚖️ Fair test — how does the shadow of a stick change through the day? Which of these is what we measure? (a) the same stick (b) shadow length (c) the time of day (d) the stick kept upright
  16. 16.⚖️ 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
  17. 17.🔦 Which of these is transparent? (a) your hand (b) a steel plate (c) a book (d) clear glass
  18. 18.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the same stick is the one thing we change. (a) False (b) True
  19. 19.⚖️ 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 keep it the same (c) we change it
  20. 20.⚖️ Fair test — how does the shadow of a stick change through the day? Which of these is the one thing we change? (a) the time of day (b) the same stick (c) shadow length (d) the same spot
  21. 21.🧺 Which of these is needed for the shadow clock? (a) a sunny open place (b) turmeric powder (c) a balloon (d) yeast
  22. 22.🛟 While watching shadows outdoors, what must you never do? (a) look straight at the Sun (b) mark with chalk (c) wear a cap (d) sit in the shade
  23. 23.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a clock to check (b) a sunny open place (c) a battery cell (d) a straight stick
  24. 24.📘 Why does a shadow form? (a) an object blocks light (b) light bends round it (c) the object is cold (d) the ground is dark
  25. 25.🧺 Do we need a mirror for the shadow clock? (a) needed (b) not needed
  26. 26.🔍 Which is the odd one out? (a) a brick (b) a steel plate (c) butter paper (d) a wooden board
  27. 27.🛟 What should you wear for a long time in the hot sun? (a) a raincoat (b) nothing on your head (c) a cap or hat (d) a woollen sweater
  28. 28.🧺 Do we need chalk to mark shadows for the shadow clock? (a) not needed (b) needed
  29. 29.🧺 Which of these is not needed for the shadow clock? (a) a clock to check (b) a sunny open place (c) chalk to mark shadows (d) a battery cell
  30. 30.True or false: a straight stick is needed for the shadow clock. (a) True (b) False
  31. 31.🧺 Which of these is not needed for the shadow clock? (a) a sunny open place (b) a clock to check (c) a balloon (d) a straight stick
  32. 32.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) turmeric powder (b) a straight stick (c) a sunny open place (d) a clock to check
  33. 33.True or false: frosted glass is translucent. (a) True (b) False
  34. 34.🔮 Predict: the Sun is low in the evening sky. The stick’s shadow is ___. (a) round (b) long (c) missing (d) short
  35. 35.True or false: turmeric powder is needed for the shadow clock. (a) False (b) True
  36. 36.🔦 Is a wooden board opaque, translucent or transparent? (a) transparent (b) opaque (c) translucent
  37. 37.🔍 Which is the odd one out? (a) clear glass (b) frosted glass (c) oily paper (d) tissue paper
  38. 38.True or false: a magnet is needed for the shadow clock. (a) False (b) True
  39. 39.🧺 Do we need a battery cell for the shadow clock? (a) not needed (b) needed
  40. 40.🌅 In the morning the Sun is in the east. Which way does a shadow point? (a) east (b) west (c) north (d) up

Answer key

  1. clean water
  2. False
  3. tissue paper
  4. a magnet
  5. bigger
  6. a straight stick
  7. transparent
  8. False
  9. the stick kept upright
  10. needed
  11. False
  12. transparent
  13. False
  14. a brick
  15. shadow length
  16. we keep it the same
  17. clear glass
  18. False
  19. we measure it
  20. the time of day
  21. a sunny open place
  22. look straight at the Sun
  23. a battery cell
  24. an object blocks light
  25. not needed
  26. butter paper
  27. a cap or hat
  28. needed
  29. a battery cell
  30. True
  31. a balloon
  32. turmeric powder
  33. True
  34. long
  35. False
  36. opaque
  37. clear glass
  38. False
  39. not needed
  40. west

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