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Shadow and Sundial Experiment Worksheet

Science experiments lesson 27: Shadows and a sundial · Set 345 · 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.🔮 Predict: you move a torch closer to your hand. The shadow on the wall gets ___. (a) brighter (b) bigger (c) coloured (d) smaller
  2. 2.True or false: a straight stick is needed for the shadow clock. (a) False (b) True
  3. 3.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a clock to check (b) a sunny open place (c) a straight stick (d) a balloon
  4. 4.True or false: a battery cell is not needed for the shadow clock. (a) True (b) False
  5. 5.🧺 Which of these is not needed for the shadow clock? (a) a straight stick (b) chalk to mark shadows (c) a clock to check (d) a magnet
  6. 6.True or false: a magnet is not needed for the shadow clock. (a) False (b) True
  7. 7.🧺 Which of these is needed for the shadow clock? (a) a magnet (b) a straight stick (c) turmeric powder (d) a battery cell
  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.🧺 Do we need a sunny open place for the shadow clock? (a) needed (b) not needed
  10. 10.🧺 Which of these is not needed for the shadow clock? (a) a balloon (b) a straight stick (c) a clock to check (d) a sunny open place
  11. 11.🧺 Which of these is needed for the shadow clock? (a) turmeric powder (b) chalk to mark shadows (c) a battery cell (d) a mirror
  12. 12.🔦 Which of these is opaque? (a) air (b) oily paper (c) a brick (d) clear glass
  13. 13.True or false: a steel plate is transparent. (a) True (b) False
  14. 14.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the time of day is kept the same. (a) True (b) False
  15. 15.🧺 Do we need a straight stick for the shadow clock? (a) not needed (b) needed
  16. 16.🧺 Do we need a balloon for the shadow clock? (a) not needed (b) needed
  17. 17.True or false: oily paper is transparent. (a) False (b) True
  18. 18.🧺 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 straight stick (d) a magnet
  19. 19.🛟 While watching shadows outdoors, what must you never do? (a) look straight at the Sun (b) mark with chalk (c) wear a cap (d) sit in the shade
  20. 20.⚖️ 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
  21. 21.📘 Why does a shadow form? (a) an object blocks light (b) the ground is dark (c) the object is cold (d) light bends round it
  22. 22.🌞 When is a stick’s shadow the shortest? (a) around noon (b) late evening (c) early morning (d) at night
  23. 23.🧺 Which of these is needed for the shadow clock? (a) yeast (b) a balloon (c) a magnet (d) a sunny open place
  24. 24.True or false: a sunny open place is not needed for the shadow clock. (a) False (b) True
  25. 25.⚖️ 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
  26. 26.⚖️ Fair test — how does the shadow of a stick change through the day? What do we do with “the same stick”? (a) we change it (b) we keep it the same (c) we measure it
  27. 27.True or false: a brick is opaque. (a) True (b) False
  28. 28.⚖️ 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 spot (c) the same stick (d) the time of day
  29. 29.True or false: a wooden board is opaque. (a) False (b) True
  30. 30.⚖️ Fair test — how does the shadow of a stick change through the day? Which of these is kept the same? (a) the stick kept upright (b) shadow length (c) the time of day
  31. 31.🌅 In the morning the Sun is in the east. Which way does a shadow point? (a) north (b) east (c) west (d) up
  32. 32.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a mirror (b) a clock to check (c) a straight stick (d) a sunny open place
  33. 33.🔦 Is frosted glass opaque, translucent or transparent? (a) translucent (b) opaque (c) transparent
  34. 34.🔦 Is air opaque, translucent or transparent? (a) transparent (b) translucent (c) opaque
  35. 35.🔦 Which of these is transparent? (a) frosted glass (b) tissue paper (c) clear glass (d) a brick
  36. 36.True or false: a book is transparent. (a) True (b) False
  37. 37.True or false: chalk to mark shadows is needed for the shadow clock. (a) False (b) True
  38. 38.🔍 Which is the odd one out? (a) your hand (b) a book (c) a brick (d) clear glass
  39. 39.🔍 Which is the odd one out? (a) air (b) clear glass (c) clear plastic film (d) oily paper
  40. 40.🧺 Do we need chalk to mark shadows for the shadow clock? (a) needed (b) not needed

Answer key

  1. bigger
  2. True
  3. a balloon
  4. True
  5. a magnet
  6. True
  7. a straight stick
  8. a cap or hat
  9. needed
  10. a balloon
  11. chalk to mark shadows
  12. a brick
  13. False
  14. False
  15. needed
  16. not needed
  17. False
  18. a magnet
  19. look straight at the Sun
  20. True
  21. an object blocks light
  22. around noon
  23. a sunny open place
  24. False
  25. True
  26. we keep it the same
  27. True
  28. the time of day
  29. True
  30. the stick kept upright
  31. west
  32. a mirror
  33. translucent
  34. transparent
  35. clear glass
  36. False
  37. True
  38. clear glass
  39. oily paper
  40. needed

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