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Shadow and Sundial Experiment Worksheet

Science experiments lesson 27: Shadows and a sundial · Set 96 · 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.🔦 Is tissue paper opaque, translucent or transparent? (a) opaque (b) transparent (c) translucent
  2. 2.🔦 Is a book opaque, translucent or transparent? (a) transparent (b) opaque (c) translucent
  3. 3.⚖️ 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) the time of day (c) shadow length (d) the same stick
  4. 4.🌞 When is a stick’s shadow the shortest? (a) at night (b) around noon (c) early morning (d) late evening
  5. 5.True or false: a straight stick is not needed for the shadow clock. (a) False (b) True
  6. 6.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a balloon (b) chalk to mark shadows (c) a clock to check (d) a sunny open place
  7. 7.🔦 Which of these is opaque? (a) a book (b) frosted glass (c) clear plastic film (d) clean water
  8. 8.🧺 Do we need a magnet for the shadow clock? (a) not needed (b) needed
  9. 9.🧺 Do we need a sunny open place for the shadow clock? (a) not needed (b) needed
  10. 10.🔦 Which of these is translucent? (a) clear plastic film (b) oily paper (c) a wooden board (d) a steel plate
  11. 11.True or false: a magnet is needed for the shadow clock. (a) False (b) True
  12. 12.🧺 Which of these is needed for the shadow clock? (a) a balloon (b) a battery cell (c) a straight stick (d) turmeric powder
  13. 13.🔦 Is clear plastic film opaque, translucent or transparent? (a) translucent (b) opaque (c) transparent
  14. 14.True or false: a book is translucent. (a) True (b) False
  15. 15.🔍 Which is the odd one out? (a) a book (b) your hand (c) a steel plate (d) oily paper
  16. 16.🔮 Predict: the Sun is low in the evening sky. The stick’s shadow is ___. (a) short (b) long (c) missing (d) round
  17. 17.True or false: yeast is not needed for the shadow clock. (a) False (b) True
  18. 18.⚖️ 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
  19. 19.🔦 Which of these is opaque? (a) a wooden board (b) tissue paper (c) clear plastic film (d) frosted glass
  20. 20.📘 Why does a shadow form? (a) an object blocks light (b) the ground is dark (c) light bends round it (d) the object is cold
  21. 21.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a magnet (b) chalk to mark shadows (c) a straight stick (d) a sunny open place
  22. 22.🔍 Which is the odd one out? (a) tissue paper (b) frosted glass (c) butter paper (d) your hand
  23. 23.True or false: chalk to mark shadows is needed for the shadow clock. (a) True (b) False
  24. 24.True or false: a battery cell is needed for the shadow clock. (a) True (b) False
  25. 25.🛟 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
  26. 26.⚖️ 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
  27. 27.🧺 Do we need turmeric powder for the shadow clock? (a) not needed (b) needed
  28. 28.⚖️ 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 measure it (c) we change it
  29. 29.🔦 Is clean water opaque, translucent or transparent? (a) opaque (b) translucent (c) transparent
  30. 30.🔦 Which of these is opaque? (a) your hand (b) clean water (c) butter paper (d) tissue paper
  31. 31.⚖️ Fair test — how does the shadow of a stick change through the day? What do we do with “shadow length”? (a) we change it (b) we keep it the same (c) we measure it
  32. 32.True or false: a clock to check is not needed for the shadow clock. (a) True (b) False
  33. 33.🔦 Is frosted glass opaque, translucent or transparent? (a) transparent (b) translucent (c) opaque
  34. 34.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a clock to check (b) a straight stick (c) chalk to mark shadows (d) turmeric powder
  35. 35.🔦 Is oily paper opaque, translucent or transparent? (a) opaque (b) translucent (c) transparent
  36. 36.🧺 Which of these is not needed for the shadow clock? (a) a straight stick (b) chalk to mark shadows (c) a sunny open place (d) a magnet
  37. 37.⚖️ 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) False (b) True
  38. 38.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) chalk to mark shadows (b) a mirror (c) a clock to check (d) a straight stick
  39. 39.🌅 In the morning the Sun is in the east. Which way does a shadow point? (a) north (b) east (c) west (d) up
  40. 40.🧺 Which of these is not needed for the shadow clock? (a) turmeric powder (b) a sunny open place (c) a clock to check (d) chalk to mark shadows

Answer key

  1. translucent
  2. opaque
  3. the time of day
  4. around noon
  5. False
  6. a balloon
  7. a book
  8. not needed
  9. needed
  10. oily paper
  11. False
  12. a straight stick
  13. transparent
  14. False
  15. oily paper
  16. long
  17. True
  18. True
  19. a wooden board
  20. an object blocks light
  21. a magnet
  22. your hand
  23. True
  24. False
  25. a cap or hat
  26. False
  27. not needed
  28. we change it
  29. transparent
  30. your hand
  31. we measure it
  32. False
  33. translucent
  34. turmeric powder
  35. translucent
  36. a magnet
  37. True
  38. a mirror
  39. west
  40. turmeric powder

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