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Shadow and Sundial Experiment Worksheet

Science experiments lesson 27: Shadows and a sundial · Set 489 · 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.True or false: butter paper is translucent. (a) False (b) True
  2. 2.🔍 Which is the odd one out? (a) a wooden board (b) air (c) a brick (d) a book
  3. 3.🔦 Is clear glass opaque, translucent or transparent? (a) opaque (b) transparent (c) translucent
  4. 4.🔮 Predict: you move a torch closer to your hand. The shadow on the wall gets ___. (a) smaller (b) coloured (c) bigger (d) brighter
  5. 5.True or false: frosted glass is opaque. (a) True (b) False
  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.🧺 Which of these is needed for the shadow clock? (a) a magnet (b) turmeric powder (c) a sunny open place (d) a battery cell
  8. 8.🧺 Which of these is needed for the shadow clock? (a) a clock to check (b) yeast (c) a mirror (d) turmeric powder
  9. 9.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a clock to check (b) a straight stick (c) a sunny open place (d) a balloon
  10. 10.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a mirror (b) a sunny open place (c) chalk to mark shadows (d) a straight stick
  11. 11.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the same spot is what we measure. (a) False (b) True
  12. 12.📘 Why does a shadow form? (a) the object is cold (b) the ground is dark (c) an object blocks light (d) light bends round it
  13. 13.⚖️ 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 measure it (c) we keep it the same
  14. 14.True or false: a sunny open place is needed for the shadow clock. (a) True (b) False
  15. 15.🔍 Which is the odd one out? (a) clear plastic film (b) clean water (c) butter paper (d) clear glass
  16. 16.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the same stick is what we measure. (a) True (b) False
  17. 17.True or false: tissue paper is transparent. (a) False (b) True
  18. 18.True or false: a clock to check is needed for the shadow clock. (a) True (b) False
  19. 19.🔦 Which of these is opaque? (a) clear glass (b) butter paper (c) clear plastic film (d) a wooden board
  20. 20.🔍 Which is the odd one out? (a) your hand (b) a wooden board (c) frosted glass (d) a brick
  21. 21.⚖️ Fair test — how does the shadow of a stick change through the day? Which of these is what we measure? (a) the same stick (b) the time of day (c) shadow length (d) the same spot
  22. 22.True or false: a clock to check is not needed for the shadow clock. (a) True (b) False
  23. 23.True or false: air is transparent. (a) True (b) False
  24. 24.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the same stick is kept the same. (a) False (b) True
  25. 25.True or false: a sunny open place is not needed for the shadow clock. (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 time of day”? (a) we keep it the same (b) we change it (c) we measure it
  27. 27.🧺 Which of these is needed for the shadow clock? (a) a mirror (b) a balloon (c) chalk to mark shadows (d) a magnet
  28. 28.🌅 In the morning the Sun is in the east. Which way does a shadow point? (a) east (b) west (c) up (d) north
  29. 29.🧺 Which of these is not needed for the shadow clock? (a) a battery cell (b) chalk to mark shadows (c) a straight stick (d) a sunny open place
  30. 30.🔦 Which of these is transparent? (a) a wooden board (b) clean water (c) tissue paper (d) a brick
  31. 31.🔦 Is frosted glass opaque, translucent or transparent? (a) transparent (b) opaque (c) translucent
  32. 32.🧺 Which of these is needed for the shadow clock? (a) a magnet (b) a straight stick (c) a mirror (d) turmeric powder
  33. 33.🌞 When is a stick’s shadow the shortest? (a) early morning (b) around noon (c) late evening (d) at night
  34. 34.🧺 Do we need a battery cell for the shadow clock? (a) not needed (b) needed
  35. 35.🧺 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) turmeric powder
  36. 36.True or false: tissue paper is translucent. (a) False (b) True
  37. 37.🧺 Which of these is not needed for the shadow clock? (a) a straight stick (b) a clock to check (c) chalk to mark shadows (d) a mirror
  38. 38.🔮 Predict: on a fully cloudy day, the sundial ___. (a) runs faster (b) shows two times (c) works better (d) does not work well
  39. 39.🧺 Do we need a straight stick for the shadow clock? (a) needed (b) not needed
  40. 40.True or false: a book is transparent. (a) False (b) True

Answer key

  1. True
  2. air
  3. transparent
  4. bigger
  5. False
  6. True
  7. a sunny open place
  8. a clock to check
  9. a balloon
  10. a mirror
  11. False
  12. an object blocks light
  13. we keep it the same
  14. True
  15. butter paper
  16. False
  17. False
  18. True
  19. a wooden board
  20. frosted glass
  21. shadow length
  22. False
  23. True
  24. True
  25. False
  26. we change it
  27. chalk to mark shadows
  28. west
  29. a battery cell
  30. clean water
  31. translucent
  32. a straight stick
  33. around noon
  34. not needed
  35. turmeric powder
  36. True
  37. a mirror
  38. does not work well
  39. needed
  40. False

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