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Shadow and Sundial Experiment Worksheet

Science experiments lesson 27: Shadows and a sundial · Set 81 · 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 wooden board opaque, translucent or transparent? (a) translucent (b) transparent (c) opaque
  2. 2.🔮 Predict: the Sun is low in the evening sky. The stick’s shadow is ___. (a) short (b) long (c) round (d) missing
  3. 3.🧺 Which of these is needed for the shadow clock? (a) a mirror (b) a magnet (c) yeast (d) a clock to check
  4. 4.True or false: a mirror is needed for the shadow clock. (a) True (b) False
  5. 5.🔦 Is air opaque, translucent or transparent? (a) transparent (b) opaque (c) translucent
  6. 6.🧺 Which of these is not needed for the shadow clock? (a) a straight stick (b) a clock to check (c) a magnet (d) chalk to mark shadows
  7. 7.🧺 Do we need a straight stick for the shadow clock? (a) not needed (b) needed
  8. 8.🛟 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
  9. 9.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) chalk to mark shadows (b) a clock to check (c) a straight stick (d) yeast
  10. 10.🌞 When is a stick’s shadow the shortest? (a) at night (b) early morning (c) around noon (d) late evening
  11. 11.🧺 Do we need a clock to check for the shadow clock? (a) not needed (b) needed
  12. 12.🔍 Which is the odd one out? (a) tissue paper (b) clear glass (c) clean water (d) air
  13. 13.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a sunny open place (b) chalk to mark shadows (c) a balloon (d) a straight stick
  14. 14.🔦 Is a book opaque, translucent or transparent? (a) opaque (b) translucent (c) transparent
  15. 15.🛟 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
  16. 16.🔦 Is a brick opaque, translucent or transparent? (a) transparent (b) translucent (c) opaque
  17. 17.🧺 Which of these is needed for the shadow clock? (a) yeast (b) a battery cell (c) chalk to mark shadows (d) a balloon
  18. 18.🧺 Do we need a mirror for the shadow clock? (a) not needed (b) needed
  19. 19.⚖️ Fair test — how does the shadow of a stick change through the day? Which of these is what we measure? (a) shadow length (b) the stick kept upright (c) the same stick (d) the time of day
  20. 20.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) chalk to mark shadows (b) a straight stick (c) a clock to check (d) a battery cell
  21. 21.🔍 Which is the odd one out? (a) a steel plate (b) a wooden board (c) a book (d) oily paper
  22. 22.🔍 Which is the odd one out? (a) oily paper (b) clear glass (c) butter paper (d) frosted glass
  23. 23.⚖️ 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
  24. 24.🧺 Do we need a balloon for the shadow clock? (a) not needed (b) needed
  25. 25.🔮 Predict: you move a torch closer to your hand. The shadow on the wall gets ___. (a) smaller (b) brighter (c) coloured (d) bigger
  26. 26.🔍 Which is the odd one out? (a) oily paper (b) butter paper (c) frosted glass (d) clean water
  27. 27.🔦 Which of these is translucent? (a) air (b) clear plastic film (c) a book (d) tissue paper
  28. 28.🔦 Is clear plastic film opaque, translucent or transparent? (a) opaque (b) translucent (c) transparent
  29. 29.True or false: a sunny open place is needed for the shadow clock. (a) False (b) True
  30. 30.True or false: a magnet is needed for the shadow clock. (a) True (b) False
  31. 31.⚖️ 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
  32. 32.🧺 Do we need yeast for the shadow clock? (a) not needed (b) needed
  33. 33.⚖️ 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
  34. 34.True or false: yeast is not needed for the shadow clock. (a) False (b) True
  35. 35.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the stick kept upright is kept the same. (a) False (b) True
  36. 36.🧺 Do we need chalk to mark shadows for the shadow clock? (a) not needed (b) needed
  37. 37.🧺 Which of these is not needed for the shadow clock? (a) chalk to mark shadows (b) turmeric powder (c) a straight stick (d) a sunny open place
  38. 38.⚖️ 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) True (b) False
  39. 39.🔍 Which is the odd one out? (a) your hand (b) a book (c) butter paper (d) a wooden board
  40. 40.True or false: chalk to mark shadows is needed for the shadow clock. (a) True (b) False

Answer key

  1. opaque
  2. long
  3. a clock to check
  4. False
  5. transparent
  6. a magnet
  7. needed
  8. a cap or hat
  9. yeast
  10. around noon
  11. needed
  12. tissue paper
  13. a balloon
  14. opaque
  15. look straight at the Sun
  16. opaque
  17. chalk to mark shadows
  18. not needed
  19. shadow length
  20. a battery cell
  21. oily paper
  22. clear glass
  23. True
  24. not needed
  25. bigger
  26. clean water
  27. tissue paper
  28. transparent
  29. True
  30. False
  31. True
  32. not needed
  33. we keep it the same
  34. True
  35. True
  36. needed
  37. turmeric powder
  38. True
  39. butter paper
  40. True

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