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Shadow and Sundial Experiment Worksheet

Science experiments lesson 27: Shadows and a sundial · Set 446 · 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.

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

Answer key

  1. tissue paper
  2. False
  3. transparent
  4. a mirror
  5. bigger
  6. True
  7. True
  8. True
  9. a cap or hat
  10. False
  11. opaque
  12. turmeric powder
  13. False
  14. air
  15. look straight at the Sun
  16. around noon
  17. a book
  18. a sunny open place
  19. butter paper
  20. a wooden board
  21. needed
  22. False
  23. a magnet
  24. True
  25. translucent
  26. oily paper
  27. False
  28. a wooden board
  29. False
  30. translucent
  31. a battery cell
  32. needed
  33. a balloon
  34. the same spot
  35. opaque
  36. False
  37. opaque
  38. we change it
  39. False
  40. the stick kept upright

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