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Shadow and Sundial Experiment Worksheet

Science experiments lesson 27: Shadows and a sundial · Set 921 · 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.🔦 Is tissue paper opaque, translucent or transparent? (a) transparent (b) opaque (c) translucent
  2. 2.🧺 Which of these is needed for the shadow clock? (a) a clock to check (b) a mirror (c) turmeric powder (d) a balloon
  3. 3.True or false: a magnet is needed for the shadow clock. (a) True (b) False
  4. 4.⚖️ Fair test — how does the shadow of a stick change through the day? What do we do with “the stick kept upright”? (a) we change it (b) we measure it (c) we keep it the same
  5. 5.🔍 Which is the odd one out? (a) clear glass (b) butter paper (c) oily paper (d) frosted glass
  6. 6.⚖️ 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) shadow length (c) the time of day (d) the same spot
  7. 7.True or false: a book is opaque. (a) True (b) False
  8. 8.🧺 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 sunny open place
  9. 9.True or false: yeast is not needed for the shadow clock. (a) True (b) False
  10. 10.⚖️ 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 time of day (c) the stick kept upright (d) the same spot
  11. 11.🔍 Which is the odd one out? (a) air (b) a wooden board (c) clear plastic film (d) clear glass
  12. 12.🌅 In the morning the Sun is in the east. Which way does a shadow point? (a) east (b) north (c) west (d) up
  13. 13.🔦 Which of these is transparent? (a) oily paper (b) a steel plate (c) butter paper (d) clean water
  14. 14.True or false: a steel plate is translucent. (a) False (b) True
  15. 15.🔍 Which is the odd one out? (a) clear plastic film (b) a wooden board (c) a brick (d) a book
  16. 16.🛟 What should you wear for a long time in the hot sun? (a) a woollen sweater (b) a cap or hat (c) nothing on your head (d) a raincoat
  17. 17.🧺 Do we need a sunny open place for the shadow clock? (a) not needed (b) needed
  18. 18.True or false: tissue paper is transparent. (a) True (b) False
  19. 19.🔦 Which of these is opaque? (a) air (b) frosted glass (c) a wooden board (d) clean water
  20. 20.🔦 Which of these is opaque? (a) air (b) frosted glass (c) clear glass (d) a brick
  21. 21.📘 Why does a shadow form? (a) the ground is dark (b) an object blocks light (c) light bends round it (d) the object is cold
  22. 22.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a straight stick (b) a sunny open place (c) a battery cell (d) a clock to check
  23. 23.⚖️ 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
  24. 24.🔦 Which of these is transparent? (a) a steel plate (b) butter paper (c) air (d) your hand
  25. 25.🧺 Do we need turmeric powder for the shadow clock? (a) not needed (b) needed
  26. 26.🛟 While watching shadows outdoors, what must you never do? (a) mark with chalk (b) sit in the shade (c) wear a cap (d) look straight at the Sun
  27. 27.🔍 Which is the odd one out? (a) clear plastic film (b) butter paper (c) clear glass (d) clean water
  28. 28.🔦 Which of these is opaque? (a) clear glass (b) tissue paper (c) a steel plate (d) butter paper
  29. 29.True or false: a mirror is needed for the shadow clock. (a) False (b) True
  30. 30.⚖️ 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) False (b) True
  31. 31.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the time of day is what we measure. (a) False (b) True
  32. 32.True or false: a steel plate is transparent. (a) False (b) True
  33. 33.🔮 Predict: you move a torch closer to your hand. The shadow on the wall gets ___. (a) coloured (b) bigger (c) smaller (d) brighter
  34. 34.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the same spot is the one thing we change. (a) True (b) False
  35. 35.True or false: turmeric powder is needed for the shadow clock. (a) True (b) False
  36. 36.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the stick kept upright is the one thing we change. (a) False (b) True
  37. 37.🔦 Which of these is translucent? (a) your hand (b) clear glass (c) tissue paper (d) a brick
  38. 38.🧺 Do we need a straight stick for the shadow clock? (a) not needed (b) needed
  39. 39.True or false: a balloon is needed for the shadow clock. (a) True (b) False
  40. 40.🔍 Which is the odd one out? (a) a wooden board (b) a steel plate (c) your hand (d) frosted glass

Answer key

  1. translucent
  2. a clock to check
  3. False
  4. we keep it the same
  5. clear glass
  6. the time of day
  7. True
  8. a magnet
  9. True
  10. shadow length
  11. a wooden board
  12. west
  13. clean water
  14. False
  15. clear plastic film
  16. a cap or hat
  17. needed
  18. False
  19. a wooden board
  20. a brick
  21. an object blocks light
  22. a battery cell
  23. we keep it the same
  24. air
  25. not needed
  26. look straight at the Sun
  27. butter paper
  28. a steel plate
  29. False
  30. False
  31. False
  32. False
  33. bigger
  34. False
  35. False
  36. False
  37. tissue paper
  38. needed
  39. False
  40. frosted glass

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