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Shadow and Sundial Experiment Worksheet

Science experiments lesson 27: Shadows and a sundial · Set 133 · 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 translucent? (a) a wooden board (b) butter paper (c) your hand (d) a steel plate
  2. 2.🌞 When is a stick’s shadow the shortest? (a) early morning (b) late evening (c) at night (d) around noon
  3. 3.True or false: your hand is transparent. (a) True (b) False
  4. 4.⚖️ Fair test — how does the shadow of a stick change through the day? Which of these is kept the same? (a) shadow length (b) the time of day (c) the stick kept upright
  5. 5.⚖️ Fair test — how does the shadow of a stick change through the day? Which of these is the one thing we change? (a) the stick kept upright (b) the same stick (c) the time of day (d) shadow length
  6. 6.🔦 Is oily paper opaque, translucent or transparent? (a) opaque (b) transparent (c) translucent
  7. 7.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the same spot is the one thing we change. (a) True (b) False
  8. 8.🧺 Which of these is needed for the shadow clock? (a) a sunny open place (b) a battery cell (c) a balloon (d) yeast
  9. 9.True or false: a straight stick is not needed for the shadow clock. (a) False (b) True
  10. 10.🌍 Why does the stick’s shadow move during the day? (a) the ground slides (b) Earth keeps spinning (c) the stick grows (d) the stick walks
  11. 11.🔍 Which is the odd one out? (a) a wooden board (b) clear glass (c) clear plastic film (d) air
  12. 12.🧺 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) chalk to mark shadows (d) a balloon
  13. 13.⚖️ 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
  14. 14.🔍 Which is the odd one out? (a) clear glass (b) a steel plate (c) clear plastic film (d) air
  15. 15.🔍 Which is the odd one out? (a) a book (b) a wooden board (c) a steel plate (d) tissue paper
  16. 16.🔮 Predict: you move a torch closer to your hand. The shadow on the wall gets ___. (a) brighter (b) bigger (c) coloured (d) smaller
  17. 17.🧺 Do we need chalk to mark shadows for the shadow clock? (a) not needed (b) needed
  18. 18.⚖️ 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
  19. 19.🧺 Which of these is not needed for the shadow clock? (a) a sunny open place (b) a clock to check (c) a straight stick (d) a mirror
  20. 20.🔍 Which is the odd one out? (a) a steel plate (b) a wooden board (c) your hand (d) clear glass
  21. 21.True or false: your hand is translucent. (a) True (b) False
  22. 22.🧺 Which of these is needed for the shadow clock? (a) a mirror (b) a straight stick (c) turmeric powder (d) a magnet
  23. 23.🔍 Which is the odd one out? (a) clear glass (b) clean water (c) air (d) frosted glass
  24. 24.🔦 Is a book opaque, translucent or transparent? (a) translucent (b) transparent (c) opaque
  25. 25.🧺 Do we need turmeric powder for the shadow clock? (a) not needed (b) needed
  26. 26.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the same stick is what we measure. (a) False (b) True
  27. 27.🔦 Is a steel plate opaque, translucent or transparent? (a) translucent (b) transparent (c) opaque
  28. 28.⚖️ Fair test — how does the shadow of a stick change through the day? Which of these is kept the same? (a) shadow length (b) the same spot (c) the time of day
  29. 29.🧺 Which of these is needed for the shadow clock? (a) a magnet (b) turmeric powder (c) chalk to mark shadows (d) a mirror
  30. 30.True or false: a steel plate is opaque. (a) True (b) False
  31. 31.True or false: butter paper is translucent. (a) True (b) False
  32. 32.True or false: a wooden board is opaque. (a) False (b) True
  33. 33.🛟 While watching shadows outdoors, what must you never do? (a) look straight at the Sun (b) sit in the shade (c) mark with chalk (d) wear a cap
  34. 34.⚖️ 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
  35. 35.🔦 Which of these is transparent? (a) tissue paper (b) air (c) a book (d) a steel plate
  36. 36.True or false: frosted glass is translucent. (a) True (b) False
  37. 37.🛟 What should you wear for a long time in the hot sun? (a) a cap or hat (b) a woollen sweater (c) nothing on your head (d) a raincoat
  38. 38.True or false: a balloon is not needed for the shadow clock. (a) False (b) True
  39. 39.True or false: turmeric powder is needed for the shadow clock. (a) False (b) True
  40. 40.🔦 Is frosted glass opaque, translucent or transparent? (a) transparent (b) opaque (c) translucent

Answer key

  1. butter paper
  2. around noon
  3. False
  4. the stick kept upright
  5. the time of day
  6. translucent
  7. False
  8. a sunny open place
  9. False
  10. Earth keeps spinning
  11. a wooden board
  12. a balloon
  13. we keep it the same
  14. a steel plate
  15. tissue paper
  16. bigger
  17. needed
  18. True
  19. a mirror
  20. clear glass
  21. False
  22. a straight stick
  23. frosted glass
  24. opaque
  25. not needed
  26. False
  27. opaque
  28. the same spot
  29. chalk to mark shadows
  30. True
  31. True
  32. True
  33. look straight at the Sun
  34. we keep it the same
  35. air
  36. True
  37. a cap or hat
  38. True
  39. False
  40. translucent

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