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Shadow and Sundial Experiment Worksheet

Science experiments lesson 27: Shadows and a sundial · Set 393 · 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.🛟 What should you wear for a long time in the hot sun? (a) nothing on your head (b) a cap or hat (c) a woollen sweater (d) a raincoat
  2. 2.🔍 Which is the odd one out? (a) air (b) clear plastic film (c) frosted glass (d) clear glass
  3. 3.🧺 Do we need a magnet for the shadow clock? (a) not needed (b) needed
  4. 4.🔮 Predict: the Sun is low in the evening sky. The stick’s shadow is ___. (a) round (b) short (c) missing (d) long
  5. 5.🔦 Is a wooden board opaque, translucent or transparent? (a) translucent (b) opaque (c) transparent
  6. 6.🧺 Which of these is not needed for the shadow clock? (a) yeast (b) chalk to mark shadows (c) a straight stick (d) a clock to check
  7. 7.True or false: a magnet is needed for the shadow clock. (a) True (b) False
  8. 8.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: shadow length is kept the same. (a) True (b) False
  9. 9.True or false: a book is transparent. (a) True (b) False
  10. 10.True or false: clear glass is translucent. (a) True (b) False
  11. 11.🧺 Do we need chalk to mark shadows for the shadow clock? (a) needed (b) not needed
  12. 12.🔦 Which of these is opaque? (a) clean water (b) frosted glass (c) clear glass (d) a wooden board
  13. 13.⚖️ 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
  14. 14.⚖️ 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) True (b) False
  15. 15.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a clock to check (b) a mirror (c) a straight stick (d) a sunny open place
  16. 16.🔍 Which is the odd one out? (a) a brick (b) your hand (c) clear plastic film (d) a book
  17. 17.⚖️ 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
  18. 18.True or false: a clock to check is needed for the shadow clock. (a) True (b) False
  19. 19.True or false: a sunny open place is needed for the shadow clock. (a) True (b) False
  20. 20.⚖️ Fair test — how does the shadow of a stick change through the day? Which of these is what we measure? (a) the time of day (b) the same stick (c) the same spot (d) shadow length
  21. 21.🔍 Which is the odd one out? (a) tissue paper (b) butter paper (c) frosted glass (d) a brick
  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: a straight stick is needed for the shadow clock. (a) False (b) True
  24. 24.🔍 Which is the odd one out? (a) clear glass (b) clean water (c) clear plastic film (d) a book
  25. 25.🔦 Which of these is transparent? (a) a book (b) oily paper (c) clear glass (d) a steel plate
  26. 26.🔦 Which of these is transparent? (a) clean water (b) a wooden board (c) a book (d) oily paper
  27. 27.⚖️ 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
  28. 28.⚖️ Fair test — how does the shadow of a stick change through the day? What do we do with “the same spot”? (a) we keep it the same (b) we measure it (c) we change it
  29. 29.🧺 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) chalk to mark shadows (d) a battery cell
  30. 30.🌅 In the morning the Sun is in the east. Which way does a shadow point? (a) east (b) north (c) west (d) up
  31. 31.True or false: turmeric powder is not needed for the shadow clock. (a) False (b) True
  32. 32.🧺 Do we need turmeric powder for the shadow clock? (a) needed (b) not needed
  33. 33.🧺 Do we need a mirror for the shadow clock? (a) needed (b) not needed
  34. 34.True or false: tissue paper is translucent. (a) True (b) False
  35. 35.🔦 Which of these is opaque? (a) clear glass (b) butter paper (c) frosted glass (d) a book
  36. 36.🔦 Is oily paper opaque, translucent or transparent? (a) opaque (b) translucent (c) transparent
  37. 37.🌍 Why does the stick’s shadow move during the day? (a) the stick grows (b) Earth keeps spinning (c) the ground slides (d) the stick walks
  38. 38.True or false: a straight stick is not needed for the shadow clock. (a) False (b) True
  39. 39.True or false: frosted glass is opaque. (a) False (b) True
  40. 40.📘 Why does a shadow form? (a) the ground is dark (b) the object is cold (c) light bends round it (d) an object blocks light

Answer key

  1. a cap or hat
  2. frosted glass
  3. not needed
  4. long
  5. opaque
  6. yeast
  7. False
  8. False
  9. False
  10. False
  11. needed
  12. a wooden board
  13. we keep it the same
  14. True
  15. a mirror
  16. clear plastic film
  17. False
  18. True
  19. True
  20. shadow length
  21. a brick
  22. False
  23. True
  24. a book
  25. clear glass
  26. clean water
  27. we change it
  28. we keep it the same
  29. a battery cell
  30. west
  31. True
  32. not needed
  33. not needed
  34. True
  35. a book
  36. translucent
  37. Earth keeps spinning
  38. False
  39. False
  40. an object blocks light

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