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Shadow and Sundial Experiment Worksheet

Science experiments lesson 27: Shadows and a sundial · Set 382 · 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.⚖️ 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
  2. 2.⚖️ Fair test — how does the shadow of a stick change through the day? Which of these is the one thing we change? (a) the same spot (b) the same stick (c) shadow length (d) the time of day
  3. 3.True or false: a straight stick is not needed for the shadow clock. (a) False (b) True
  4. 4.True or false: tissue paper is transparent. (a) False (b) True
  5. 5.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a straight stick (b) a battery cell (c) chalk to mark shadows (d) a clock to check
  6. 6.🔍 Which is the odd one out? (a) tissue paper (b) butter paper (c) frosted glass (d) clean water
  7. 7.🔮 Predict: the Sun is low in the evening sky. The stick’s shadow is ___. (a) long (b) short (c) missing (d) round
  8. 8.📘 Why does a shadow form? (a) the ground is dark (b) light bends round it (c) the object is cold (d) an object blocks light
  9. 9.🔦 Is air opaque, translucent or transparent? (a) opaque (b) translucent (c) transparent
  10. 10.🔦 Is clear plastic film opaque, translucent or transparent? (a) opaque (b) transparent (c) translucent
  11. 11.🌅 In the morning the Sun is in the east. Which way does a shadow point? (a) north (b) up (c) east (d) west
  12. 12.🔦 Which of these is opaque? (a) clear plastic film (b) clean water (c) a wooden board (d) oily paper
  13. 13.⚖️ 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 same spot (c) the time of day (d) the same stick
  14. 14.True or false: frosted glass is opaque. (a) True (b) False
  15. 15.🧺 Do we need turmeric powder for the shadow clock? (a) needed (b) not needed
  16. 16.True or false: tissue paper is translucent. (a) False (b) True
  17. 17.🔦 Is tissue paper opaque, translucent or transparent? (a) transparent (b) opaque (c) translucent
  18. 18.🛟 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
  19. 19.⚖️ Fair test — how does the shadow of a stick change through the day? What do we do with “the stick kept upright”? (a) we keep it the same (b) we change it (c) we measure it
  20. 20.🔮 Predict: you move a torch closer to your hand. The shadow on the wall gets ___. (a) brighter (b) smaller (c) coloured (d) bigger
  21. 21.True or false: a sunny open place is not needed for the shadow clock. (a) False (b) True
  22. 22.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) turmeric powder (b) chalk to mark shadows (c) a sunny open place (d) a straight stick
  23. 23.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a sunny open place (b) chalk to mark shadows (c) a balloon (d) a straight stick
  24. 24.⚖️ Fair test — how does the shadow of a stick change through the day? What do we do with “shadow length”? (a) we keep it the same (b) we change it (c) we measure it
  25. 25.True or false: a battery cell is not needed for the shadow clock. (a) True (b) False
  26. 26.🧺 Which of these is needed for the shadow clock? (a) a balloon (b) chalk to mark shadows (c) a battery cell (d) a magnet
  27. 27.True or false: your hand is opaque. (a) True (b) False
  28. 28.🔦 Which of these is transparent? (a) a book (b) a brick (c) a steel plate (d) clear plastic film
  29. 29.🔦 Is a steel plate opaque, translucent or transparent? (a) transparent (b) opaque (c) translucent
  30. 30.🔦 Which of these is translucent? (a) your hand (b) a book (c) frosted glass (d) clear plastic film
  31. 31.True or false: a straight stick is needed for the shadow clock. (a) False (b) True
  32. 32.True or false: a magnet is needed for the shadow clock. (a) True (b) False
  33. 33.⚖️ Fair test — how does the shadow of a stick change through the day? Which of these is kept the same? (a) the same stick (b) shadow length (c) the time of day
  34. 34.🧺 Do we need a sunny open place for the shadow clock? (a) needed (b) not needed
  35. 35.🧺 Do we need a balloon for the shadow clock? (a) needed (b) not needed
  36. 36.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a mirror (b) chalk to mark shadows (c) a straight stick (d) a sunny open place
  37. 37.True or false: a book is transparent. (a) True (b) False
  38. 38.🌞 When is a stick’s shadow the shortest? (a) around noon (b) late evening (c) early morning (d) at night
  39. 39.🔦 Is clean water opaque, translucent or transparent? (a) opaque (b) translucent (c) transparent
  40. 40.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: shadow length is the one thing we change. (a) True (b) False

Answer key

  1. we keep it the same
  2. the time of day
  3. False
  4. False
  5. a battery cell
  6. clean water
  7. long
  8. an object blocks light
  9. transparent
  10. transparent
  11. west
  12. a wooden board
  13. shadow length
  14. False
  15. not needed
  16. True
  17. translucent
  18. a cap or hat
  19. we keep it the same
  20. bigger
  21. False
  22. turmeric powder
  23. a balloon
  24. we measure it
  25. True
  26. chalk to mark shadows
  27. True
  28. clear plastic film
  29. opaque
  30. frosted glass
  31. True
  32. False
  33. the same stick
  34. needed
  35. not needed
  36. a mirror
  37. False
  38. around noon
  39. transparent
  40. False

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