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Shadow and Sundial Experiment Worksheet

Science experiments lesson 27: Shadows and a sundial · Set 792 · 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 needed for the shadow clock? (a) a magnet (b) yeast (c) turmeric powder (d) a straight stick
  2. 2.True or false: clear plastic film is transparent. (a) False (b) True
  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) False (b) True
  4. 4.🛟 While watching shadows outdoors, what must you never do? (a) sit in the shade (b) look straight at the Sun (c) mark with chalk (d) wear a cap
  5. 5.🧺 Do we need a battery cell for the shadow clock? (a) not needed (b) needed
  6. 6.🌅 In the morning the Sun is in the east. Which way does a shadow point? (a) east (b) north (c) up (d) west
  7. 7.🧺 Which of these is not needed for the shadow clock? (a) a straight stick (b) a sunny open place (c) a clock to check (d) turmeric powder
  8. 8.🧺 Do we need a straight stick for the shadow clock? (a) needed (b) not needed
  9. 9.⚖️ Fair test — how does the shadow of a stick change through the day? What do we do with “shadow length”? (a) we keep it the same (b) we change it (c) we measure it
  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 change it (b) we measure it (c) we keep it the same
  11. 11.🧺 Do we need a magnet for the shadow clock? (a) not needed (b) needed
  12. 12.🌞 When is a stick’s shadow the shortest? (a) late evening (b) early morning (c) around noon (d) at night
  13. 13.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a magnet (b) a sunny open place (c) chalk to mark shadows (d) a straight stick
  14. 14.⚖️ Fair test — how does the shadow of a stick change through the day? Which of these is what we measure? (a) the same spot (b) shadow length (c) the stick kept upright (d) the time of day
  15. 15.True or false: yeast is needed for the shadow clock. (a) True (b) False
  16. 16.True or false: a steel plate is opaque. (a) True (b) False
  17. 17.🔍 Which is the odd one out? (a) clean water (b) clear glass (c) a book (d) air
  18. 18.🌍 Why does the stick’s shadow move during the day? (a) the ground slides (b) the stick walks (c) the stick grows (d) Earth keeps spinning
  19. 19.🔦 Is your hand opaque, translucent or transparent? (a) translucent (b) transparent (c) opaque
  20. 20.🧺 Do we need turmeric powder for the shadow clock? (a) needed (b) not needed
  21. 21.🔦 Which of these is transparent? (a) clear glass (b) a brick (c) tissue paper (d) a steel plate
  22. 22.⚖️ 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 time of day (c) the same spot (d) shadow length
  23. 23.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a mirror (b) chalk to mark shadows (c) a straight stick (d) a sunny open place
  24. 24.🔮 Predict: you move a torch closer to your hand. The shadow on the wall gets ___. (a) brighter (b) smaller (c) coloured (d) bigger
  25. 25.🧺 Do we need yeast for the shadow clock? (a) not needed (b) needed
  26. 26.True or false: a balloon is needed for the shadow clock. (a) False (b) True
  27. 27.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the same spot is kept the same. (a) True (b) False
  28. 28.⚖️ 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) False (b) True
  29. 29.🧺 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) a straight stick (d) yeast
  30. 30.🛟 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
  31. 31.🔍 Which is the odd one out? (a) clear plastic film (b) clean water (c) butter paper (d) clear glass
  32. 32.🔦 Is clear glass opaque, translucent or transparent? (a) translucent (b) opaque (c) transparent
  33. 33.🔦 Is frosted glass opaque, translucent or transparent? (a) transparent (b) opaque (c) translucent
  34. 34.🔦 Which of these is opaque? (a) clear plastic film (b) a brick (c) air (d) tissue paper
  35. 35.🔮 Predict: the Sun is low in the evening sky. The stick’s shadow is ___. (a) short (b) long (c) round (d) missing
  36. 36.🔦 Which of these is opaque? (a) air (b) your hand (c) tissue paper (d) butter paper
  37. 37.True or false: a straight stick is not needed for the shadow clock. (a) True (b) False
  38. 38.🔍 Which is the odd one out? (a) a wooden board (b) your hand (c) tissue paper (d) a steel plate
  39. 39.🔍 Which is the odd one out? (a) air (b) oily paper (c) tissue paper (d) butter paper
  40. 40.🔦 Is a steel plate opaque, translucent or transparent? (a) transparent (b) translucent (c) opaque

Answer key

  1. a straight stick
  2. True
  3. False
  4. look straight at the Sun
  5. not needed
  6. west
  7. turmeric powder
  8. needed
  9. we measure it
  10. we change it
  11. not needed
  12. around noon
  13. a magnet
  14. shadow length
  15. False
  16. True
  17. a book
  18. Earth keeps spinning
  19. opaque
  20. not needed
  21. clear glass
  22. the time of day
  23. a mirror
  24. bigger
  25. not needed
  26. False
  27. True
  28. False
  29. yeast
  30. a cap or hat
  31. butter paper
  32. transparent
  33. translucent
  34. a brick
  35. long
  36. your hand
  37. False
  38. tissue paper
  39. air
  40. opaque

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