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Shadow and Sundial Experiment Worksheet

Science experiments lesson 27: Shadows and a sundial · Set 550 · 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.📘 Why does a shadow form? (a) light bends round it (b) an object blocks light (c) the object is cold (d) the ground is dark
  2. 2.⚖️ 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
  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 same stick (b) the time of day (c) shadow length (d) the stick kept upright
  4. 4.🔮 Predict: you move a torch closer to your hand. The shadow on the wall gets ___. (a) bigger (b) smaller (c) coloured (d) brighter
  5. 5.🔮 Predict: the Sun is low in the evening sky. The stick’s shadow is ___. (a) round (b) missing (c) short (d) long
  6. 6.🔦 Is air opaque, translucent or transparent? (a) transparent (b) translucent (c) opaque
  7. 7.🧺 Which of these is not needed for the shadow clock? (a) a sunny open place (b) a clock to check (c) chalk to mark shadows (d) a battery cell
  8. 8.🧺 Which of these is needed for the shadow clock? (a) turmeric powder (b) a balloon (c) a clock to check (d) yeast
  9. 9.⚖️ 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 keep it the same (c) we measure it
  10. 10.🔦 Which of these is opaque? (a) clear glass (b) a wooden board (c) oily paper (d) air
  11. 11.🧺 Do we need a sunny open place for the shadow clock? (a) not needed (b) needed
  12. 12.🧺 Do we need turmeric powder for the shadow clock? (a) needed (b) not needed
  13. 13.True or false: a book is transparent. (a) True (b) False
  14. 14.🔍 Which is the odd one out? (a) butter paper (b) a wooden board (c) a book (d) a brick
  15. 15.True or false: tissue paper is translucent. (a) False (b) True
  16. 16.🧺 Do we need a battery cell for the shadow clock? (a) needed (b) not needed
  17. 17.🛟 What should you wear for a long time in the hot sun? (a) a woollen sweater (b) a raincoat (c) nothing on your head (d) a cap or hat
  18. 18.🛟 While watching shadows outdoors, what must you never do? (a) sit in the shade (b) look straight at the Sun (c) wear a cap (d) mark with chalk
  19. 19.🔍 Which is the odd one out? (a) your hand (b) a wooden board (c) a steel plate (d) clear glass
  20. 20.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a battery cell (b) a straight stick (c) chalk to mark shadows (d) a sunny open place
  21. 21.🔦 Is a book opaque, translucent or transparent? (a) transparent (b) translucent (c) opaque
  22. 22.🔦 Which of these is translucent? (a) a wooden board (b) a steel plate (c) your hand (d) tissue paper
  23. 23.⚖️ 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
  24. 24.🔦 Is a wooden board opaque, translucent or transparent? (a) transparent (b) translucent (c) opaque
  25. 25.⚖️ Fair test — how does the shadow of a stick change through the day? Which of these is what we measure? (a) the same spot (b) the time of day (c) shadow length (d) the stick kept upright
  26. 26.🌅 In the morning the Sun is in the east. Which way does a shadow point? (a) east (b) up (c) west (d) north
  27. 27.🌍 Why does the stick’s shadow move during the day? (a) the stick walks (b) the stick grows (c) Earth keeps spinning (d) the ground slides
  28. 28.🔍 Which is the odd one out? (a) a book (b) a brick (c) oily paper (d) a wooden board
  29. 29.🧺 Do we need a magnet for the shadow clock? (a) needed (b) not needed
  30. 30.🔦 Which of these is opaque? (a) air (b) tissue paper (c) your hand (d) clean water
  31. 31.🧺 Which of these is not needed for the shadow clock? (a) a clock to check (b) a straight stick (c) a mirror (d) a sunny open place
  32. 32.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a straight stick (b) a clock to check (c) a balloon (d) a sunny open place
  33. 33.True or false: a wooden board is transparent. (a) False (b) True
  34. 34.True or false: butter paper is translucent. (a) True (b) False
  35. 35.🔍 Which is the odd one out? (a) your hand (b) a brick (c) a wooden board (d) clear plastic film
  36. 36.🧺 Which of these is needed for the shadow clock? (a) a magnet (b) a battery cell (c) a mirror (d) a sunny open place
  37. 37.True or false: a clock to check is needed for the shadow clock. (a) True (b) False
  38. 38.🧺 Do we need a clock to check for the shadow clock? (a) not needed (b) needed
  39. 39.⚖️ Fair test — how does the shadow of a stick change through the day? What do we do with “the same stick”? (a) we measure it (b) we change it (c) we keep it the same
  40. 40.🧺 Do we need a balloon for the shadow clock? (a) needed (b) not needed

Answer key

  1. an object blocks light
  2. True
  3. the time of day
  4. bigger
  5. long
  6. transparent
  7. a battery cell
  8. a clock to check
  9. we change it
  10. a wooden board
  11. needed
  12. not needed
  13. False
  14. butter paper
  15. True
  16. not needed
  17. a cap or hat
  18. look straight at the Sun
  19. clear glass
  20. a battery cell
  21. opaque
  22. tissue paper
  23. True
  24. opaque
  25. shadow length
  26. west
  27. Earth keeps spinning
  28. oily paper
  29. not needed
  30. your hand
  31. a mirror
  32. a balloon
  33. False
  34. True
  35. clear plastic film
  36. a sunny open place
  37. True
  38. needed
  39. we keep it the same
  40. not needed

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