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Shadow and Sundial Experiment Worksheet

Science experiments lesson 27: Shadows and a sundial · Set 253 · 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 wooden board (b) clean water (c) a steel plate (d) a brick
  2. 2.True or false: clear plastic film is transparent. (a) True (b) False
  3. 3.⚖️ 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
  4. 4.True or false: a mirror is not needed for the shadow clock. (a) False (b) True
  5. 5.🧺 Do we need a mirror for the shadow clock? (a) needed (b) not needed
  6. 6.True or false: a straight stick is not needed for the shadow clock. (a) True (b) False
  7. 7.🧺 Which of these is needed for the shadow clock? (a) a battery cell (b) yeast (c) a straight stick (d) a mirror
  8. 8.🧺 Do we need a clock to check for the shadow clock? (a) not needed (b) needed
  9. 9.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: shadow length is what we measure. (a) True (b) False
  10. 10.🛟 While watching shadows outdoors, what must you never do? (a) wear a cap (b) look straight at the Sun (c) sit in the shade (d) mark with chalk
  11. 11.📘 Why does a shadow form? (a) light bends round it (b) the ground is dark (c) the object is cold (d) an object blocks light
  12. 12.True or false: oily paper is translucent. (a) False (b) True
  13. 13.🛟 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
  14. 14.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the stick kept upright is what we measure. (a) True (b) False
  15. 15.🔦 Which of these is translucent? (a) a steel plate (b) butter paper (c) clear glass (d) a wooden board
  16. 16.⚖️ Fair test — how does the shadow of a stick change through the day? Which of these is kept the same? (a) the time of day (b) shadow length (c) the same spot
  17. 17.True or false: a straight stick is needed for the shadow clock. (a) False (b) True
  18. 18.🔦 Which of these is opaque? (a) frosted glass (b) a brick (c) clean water (d) butter paper
  19. 19.🔍 Which is the odd one out? (a) a wooden board (b) a steel plate (c) a book (d) butter paper
  20. 20.⚖️ Fair test — how does the shadow of a stick change through the day? What do we do with “the same stick”? (a) we keep it the same (b) we change it (c) we measure it
  21. 21.🔦 Is a steel plate opaque, translucent or transparent? (a) transparent (b) translucent (c) opaque
  22. 22.🔦 Is a wooden board opaque, translucent or transparent? (a) opaque (b) translucent (c) transparent
  23. 23.🔦 Which of these is opaque? (a) air (b) your hand (c) clean water (d) frosted glass
  24. 24.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) chalk to mark shadows (b) a sunny open place (c) a mirror (d) a clock to check
  25. 25.🔍 Which is the odd one out? (a) clear plastic film (b) tissue paper (c) air (d) clear glass
  26. 26.⚖️ Fair test — how does the shadow of a stick change through the day? Which of these is the one thing we change? (a) the same stick (b) the same spot (c) the stick kept upright (d) the time of day
  27. 27.🔮 Predict: you move a torch closer to your hand. The shadow on the wall gets ___. (a) coloured (b) brighter (c) smaller (d) bigger
  28. 28.🔦 Which of these is translucent? (a) oily paper (b) your hand (c) a book (d) air
  29. 29.🧺 Do we need a balloon for the shadow clock? (a) not needed (b) needed
  30. 30.⚖️ 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
  31. 31.🧺 Do we need chalk to mark shadows for the shadow clock? (a) needed (b) not needed
  32. 32.⚖️ 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
  33. 33.🧺 Which of these is needed for the shadow clock? (a) a mirror (b) yeast (c) a sunny open place (d) a magnet
  34. 34.True or false: a magnet is needed for the shadow clock. (a) True (b) False
  35. 35.🔮 Predict: the Sun is low in the evening sky. The stick’s shadow is ___. (a) round (b) short (c) missing (d) long
  36. 36.True or false: frosted glass is opaque. (a) True (b) False
  37. 37.🧺 Do we need a magnet for the shadow clock? (a) needed (b) not needed
  38. 38.⚖️ 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 change it (c) we keep it the same
  39. 39.🧺 Do we need a sunny open place for the shadow clock? (a) not needed (b) needed
  40. 40.🔦 Which of these is opaque? (a) air (b) clean water (c) a wooden board (d) butter paper

Answer key

  1. clean water
  2. True
  3. False
  4. True
  5. not needed
  6. False
  7. a straight stick
  8. needed
  9. True
  10. look straight at the Sun
  11. an object blocks light
  12. True
  13. a cap or hat
  14. False
  15. butter paper
  16. the same spot
  17. True
  18. a brick
  19. butter paper
  20. we keep it the same
  21. opaque
  22. opaque
  23. your hand
  24. a mirror
  25. tissue paper
  26. the time of day
  27. bigger
  28. oily paper
  29. not needed
  30. True
  31. needed
  32. we measure it
  33. a sunny open place
  34. False
  35. long
  36. False
  37. not needed
  38. we keep it the same
  39. needed
  40. a wooden board

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