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Shadow and Sundial Experiment Worksheet

Science experiments lesson 27: Shadows and a sundial · Set 491 · 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.🔮 Predict: you move a torch closer to your hand. The shadow on the wall gets ___. (a) smaller (b) bigger (c) brighter (d) coloured
  2. 2.🔦 Is oily paper opaque, translucent or transparent? (a) opaque (b) transparent (c) translucent
  3. 3.🔍 Which is the odd one out? (a) a book (b) frosted glass (c) a steel plate (d) a wooden board
  4. 4.True or false: yeast is needed for the shadow clock. (a) True (b) False
  5. 5.🧺 Do we need yeast for the shadow clock? (a) needed (b) not needed
  6. 6.🛟 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
  7. 7.🔍 Which is the odd one out? (a) oily paper (b) clear glass (c) tissue paper (d) butter paper
  8. 8.True or false: a clock to check is not needed for the shadow clock. (a) False (b) True
  9. 9.True or false: a magnet is not needed for the shadow clock. (a) True (b) False
  10. 10.⚖️ Fair test — how does the shadow of a stick change through the day? What do we do with “the same stick”? (a) we keep it the same (b) we change it (c) we measure it
  11. 11.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a sunny open place (b) a straight stick (c) turmeric powder (d) chalk to mark shadows
  12. 12.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a straight stick (b) a magnet (c) chalk to mark shadows (d) a sunny open place
  13. 13.🌍 Why does the stick’s shadow move during the day? (a) the ground slides (b) the stick grows (c) the stick walks (d) Earth keeps spinning
  14. 14.True or false: turmeric powder is needed for the shadow clock. (a) False (b) True
  15. 15.🧺 Do we need a clock to check for the shadow clock? (a) needed (b) not needed
  16. 16.True or false: a mirror is needed for the shadow clock. (a) True (b) False
  17. 17.True or false: frosted glass is translucent. (a) True (b) False
  18. 18.🔮 Predict: the Sun is low in the evening sky. The stick’s shadow is ___. (a) missing (b) short (c) round (d) long
  19. 19.🛟 What should you wear for a long time in the hot sun? (a) a cap or hat (b) a woollen sweater (c) a raincoat (d) nothing on your head
  20. 20.🧺 Do we need a straight stick for the shadow clock? (a) needed (b) not needed
  21. 21.🧺 Which of these is needed for the shadow clock? (a) a clock to check (b) a mirror (c) a balloon (d) a battery cell
  22. 22.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) yeast (b) a straight stick (c) a sunny open place (d) a clock to check
  23. 23.⚖️ 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
  24. 24.🔦 Which of these is transparent? (a) air (b) a wooden board (c) tissue paper (d) a steel plate
  25. 25.🧺 Do we need a balloon for the shadow clock? (a) needed (b) not needed
  26. 26.⚖️ 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
  27. 27.🔦 Is butter paper opaque, translucent or transparent? (a) transparent (b) opaque (c) translucent
  28. 28.🔦 Which of these is translucent? (a) your hand (b) a book (c) tissue paper (d) air
  29. 29.⚖️ 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
  30. 30.⚖️ Fair test — how does the shadow of a stick change through the day? Which of these is what we measure? (a) the same stick (b) the same spot (c) the time of day (d) shadow length
  31. 31.🧺 Do we need a battery cell for the shadow clock? (a) not needed (b) needed
  32. 32.🔍 Which is the odd one out? (a) clean water (b) air (c) a wooden board (d) clear plastic film
  33. 33.🧺 Which of these is not needed for the shadow clock? (a) a clock to check (b) a mirror (c) a straight stick (d) a sunny open place
  34. 34.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the time of day is what we measure. (a) True (b) False
  35. 35.📘 Why does a shadow form? (a) the object is cold (b) the ground is dark (c) light bends round it (d) an object blocks light
  36. 36.🧺 Which of these is needed for the shadow clock? (a) a magnet (b) a balloon (c) yeast (d) chalk to mark shadows
  37. 37.🧺 Which of these is not needed for the shadow clock? (a) chalk to mark shadows (b) a straight stick (c) a clock to check (d) turmeric powder
  38. 38.🔍 Which is the odd one out? (a) clean water (b) clear glass (c) butter paper (d) air
  39. 39.🧺 Which of these is needed for the shadow clock? (a) a magnet (b) a sunny open place (c) yeast (d) a balloon
  40. 40.🔦 Which of these is transparent? (a) a wooden board (b) clear glass (c) a book (d) a brick

Answer key

  1. bigger
  2. translucent
  3. frosted glass
  4. False
  5. not needed
  6. look straight at the Sun
  7. clear glass
  8. False
  9. True
  10. we keep it the same
  11. turmeric powder
  12. a magnet
  13. Earth keeps spinning
  14. False
  15. needed
  16. False
  17. True
  18. long
  19. a cap or hat
  20. needed
  21. a clock to check
  22. yeast
  23. False
  24. air
  25. not needed
  26. we measure it
  27. translucent
  28. tissue paper
  29. True
  30. shadow length
  31. not needed
  32. a wooden board
  33. a mirror
  34. False
  35. an object blocks light
  36. chalk to mark shadows
  37. turmeric powder
  38. butter paper
  39. a sunny open place
  40. clear glass

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