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Shadow and Sundial Experiment Worksheet

Science experiments lesson 27: Shadows and a sundial · Set 566 · 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.📘 Why does a shadow form? (a) light bends round it (b) the object is cold (c) the ground is dark (d) an object blocks light
  2. 2.🔦 Is a book opaque, translucent or transparent? (a) opaque (b) translucent (c) transparent
  3. 3.🛟 While watching shadows outdoors, what must you never do? (a) mark with chalk (b) sit in the shade (c) wear a cap (d) look straight at the Sun
  4. 4.True or false: a balloon is needed for the shadow clock. (a) True (b) False
  5. 5.🔍 Which is the odd one out? (a) a wooden board (b) a brick (c) a book (d) clean water
  6. 6.🛟 What should you wear for a long time in the hot sun? (a) a raincoat (b) a woollen sweater (c) a cap or hat (d) nothing on your head
  7. 7.🧺 Do we need a sunny open place for the shadow clock? (a) not needed (b) needed
  8. 8.🔮 Predict: the Sun is low in the evening sky. The stick’s shadow is ___. (a) missing (b) short (c) long (d) round
  9. 9.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) turmeric powder (b) a clock to check (c) a straight stick (d) chalk to mark shadows
  10. 10.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a battery cell (b) a straight stick (c) a clock to check (d) a sunny open place
  11. 11.🧺 Which of these is not needed for the shadow clock? (a) chalk to mark shadows (b) a sunny open place (c) a clock to check (d) a magnet
  12. 12.True or false: turmeric powder is not needed for the shadow clock. (a) False (b) True
  13. 13.True or false: a brick is opaque. (a) True (b) False
  14. 14.⚖️ 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
  15. 15.⚖️ 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 stick (c) the stick kept upright (d) the same spot
  16. 16.True or false: chalk to mark shadows is not needed for the shadow clock. (a) True (b) False
  17. 17.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a magnet (b) a straight stick (c) chalk to mark shadows (d) a sunny open place
  18. 18.🕰️ What is a sundial used for? (a) measuring rain (b) making rainbows (c) weighing things (d) telling the time
  19. 19.🧺 Do we need turmeric powder for the shadow clock? (a) not needed (b) needed
  20. 20.⚖️ 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) False (b) True
  21. 21.🔍 Which is the odd one out? (a) butter paper (b) clear plastic film (c) oily paper (d) tissue paper
  22. 22.🔍 Which is the odd one out? (a) clear glass (b) air (c) clean water (d) oily paper
  23. 23.🔦 Is your hand opaque, translucent or transparent? (a) opaque (b) translucent (c) transparent
  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 steel plate is transparent. (a) True (b) False
  26. 26.⚖️ 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 keep it the same (c) we measure it
  27. 27.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) chalk to mark shadows (b) yeast (c) a clock to check (d) a sunny open place
  28. 28.🧺 Which of these is not needed for the shadow clock? (a) a sunny open place (b) a straight stick (c) yeast (d) a clock to check
  29. 29.🔦 Which of these is translucent? (a) oily paper (b) a wooden board (c) a book (d) clear plastic film
  30. 30.⚖️ 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
  31. 31.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the same spot is the one thing we change. (a) True (b) False
  32. 32.🔦 Which of these is transparent? (a) butter paper (b) frosted glass (c) tissue paper (d) clear plastic film
  33. 33.⚖️ 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 same spot (c) the time of day (d) the same stick
  34. 34.🔦 Is butter paper opaque, translucent or transparent? (a) opaque (b) transparent (c) translucent
  35. 35.True or false: oily paper is transparent. (a) False (b) True
  36. 36.True or false: clean water is opaque. (a) True (b) False
  37. 37.⚖️ 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 change it (c) we measure it
  38. 38.True or false: clear plastic film is transparent. (a) True (b) False
  39. 39.True or false: frosted glass is opaque. (a) False (b) True
  40. 40.True or false: tissue paper is opaque. (a) True (b) False

Answer key

  1. an object blocks light
  2. opaque
  3. look straight at the Sun
  4. False
  5. clean water
  6. a cap or hat
  7. needed
  8. long
  9. turmeric powder
  10. a battery cell
  11. a magnet
  12. True
  13. True
  14. False
  15. shadow length
  16. False
  17. a magnet
  18. telling the time
  19. not needed
  20. True
  21. clear plastic film
  22. oily paper
  23. opaque
  24. True
  25. False
  26. we keep it the same
  27. yeast
  28. yeast
  29. oily paper
  30. True
  31. False
  32. clear plastic film
  33. the time of day
  34. translucent
  35. False
  36. False
  37. we keep it the same
  38. True
  39. False
  40. False

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