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Shadow and Sundial Experiment Worksheet

Science experiments lesson 27: Shadows and a sundial · Set 48 · 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 of these is transparent? (a) a brick (b) tissue paper (c) your hand (d) clear plastic film
  2. 2.🛟 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
  3. 3.🌞 When is a stick’s shadow the shortest? (a) late evening (b) at night (c) early morning (d) around noon
  4. 4.⚖️ 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) True (b) False
  5. 5.🧺 Which of these is needed for the shadow clock? (a) a mirror (b) a balloon (c) a clock to check (d) turmeric powder
  6. 6.🔮 Predict: you move a torch closer to your hand. The shadow on the wall gets ___. (a) coloured (b) bigger (c) brighter (d) smaller
  7. 7.🔍 Which is the odd one out? (a) clear glass (b) a book (c) air (d) clean water
  8. 8.🧺 Do we need chalk to mark shadows for the shadow clock? (a) needed (b) not needed
  9. 9.🔮 Predict: on a fully cloudy day, the sundial ___. (a) works better (b) runs faster (c) does not work well (d) shows two times
  10. 10.🔦 Which of these is opaque? (a) oily paper (b) butter paper (c) tissue paper (d) a wooden board
  11. 11.🔮 Predict: the Sun is low in the evening sky. The stick’s shadow is ___. (a) long (b) short (c) round (d) missing
  12. 12.🔦 Which of these is translucent? (a) a wooden board (b) clear glass (c) a steel plate (d) butter paper
  13. 13.🔦 Is tissue paper opaque, translucent or transparent? (a) opaque (b) translucent (c) transparent
  14. 14.🧺 Which of these is not needed for the shadow clock? (a) a sunny open place (b) chalk to mark shadows (c) a magnet (d) a straight stick
  15. 15.🧺 Which of these is not needed for the shadow clock? (a) a straight stick (b) a clock to check (c) a balloon (d) chalk to mark shadows
  16. 16.⚖️ 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 keep it the same (c) we measure it
  17. 17.📘 Why does a shadow form? (a) an object blocks light (b) light bends round it (c) the ground is dark (d) the object is cold
  18. 18.🛟 What should you wear for a long time in the hot sun? (a) a woollen sweater (b) a raincoat (c) a cap or hat (d) nothing on your head
  19. 19.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the stick kept upright is what we measure. (a) False (b) True
  20. 20.True or false: a magnet is not needed for the shadow clock. (a) False (b) True
  21. 21.🔦 Which of these is opaque? (a) clear glass (b) air (c) a brick (d) butter paper
  22. 22.🔦 Which of these is transparent? (a) clear glass (b) frosted glass (c) oily paper (d) tissue paper
  23. 23.True or false: frosted glass is opaque. (a) True (b) False
  24. 24.True or false: a wooden board is opaque. (a) False (b) True
  25. 25.🕰️ What is a sundial used for? (a) weighing things (b) telling the time (c) measuring rain (d) making rainbows
  26. 26.🧺 Which of these is not needed for the shadow clock? (a) a battery cell (b) chalk to mark shadows (c) a sunny open place (d) a clock to check
  27. 27.True or false: chalk to mark shadows is not needed for the shadow clock. (a) True (b) False
  28. 28.True or false: a battery cell is not needed for the shadow clock. (a) True (b) False
  29. 29.🔦 Which of these is opaque? (a) clear plastic film (b) your hand (c) air (d) oily paper
  30. 30.True or false: a mirror is not needed for the shadow clock. (a) False (b) True
  31. 31.⚖️ Fair test — how does the shadow of a stick change through the day? What do we do with “the time of day”? (a) we change it (b) we measure it (c) we keep it the same
  32. 32.🧺 Do we need a magnet for the shadow clock? (a) needed (b) not needed
  33. 33.🧺 Which of these is not needed for the shadow clock? (a) a sunny open place (b) a straight stick (c) chalk to mark shadows (d) yeast
  34. 34.🔍 Which is the odd one out? (a) a steel plate (b) clean water (c) a book (d) a wooden board
  35. 35.True or false: a sunny open place is not needed for the shadow clock. (a) True (b) False
  36. 36.🔦 Is a brick opaque, translucent or transparent? (a) opaque (b) transparent (c) translucent
  37. 37.🔍 Which is the odd one out? (a) a wooden board (b) a brick (c) a book (d) butter paper
  38. 38.🔦 Which of these is translucent? (a) a book (b) clear glass (c) tissue paper (d) a steel plate
  39. 39.⚖️ 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) shadow length (c) the stick kept upright (d) the same spot
  40. 40.🌅 In the morning the Sun is in the east. Which way does a shadow point? (a) up (b) north (c) west (d) east

Answer key

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

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