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Shadow and Sundial Experiment Worksheet

Science experiments lesson 27: Shadows and a sundial · Set 73 · 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: on a fully cloudy day, the sundial ___. (a) works better (b) shows two times (c) runs faster (d) does not work well
  2. 2.True or false: oily paper is translucent. (a) True (b) False
  3. 3.⚖️ 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
  4. 4.🔮 Predict: the Sun is low in the evening sky. The stick’s shadow is ___. (a) short (b) long (c) missing (d) round
  5. 5.🛟 While watching shadows outdoors, what must you never do? (a) wear a cap (b) sit in the shade (c) mark with chalk (d) look straight at the Sun
  6. 6.🧺 Do we need turmeric powder for the shadow clock? (a) not needed (b) needed
  7. 7.⚖️ Fair test — how does the shadow of a stick change through the day? Which of these is the one thing we change? (a) shadow length (b) the time of day (c) the same stick (d) the stick kept upright
  8. 8.🔮 Predict: you move a torch closer to your hand. The shadow on the wall gets ___. (a) bigger (b) smaller (c) brighter (d) coloured
  9. 9.True or false: butter paper is translucent. (a) False (b) True
  10. 10.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) chalk to mark shadows (b) a clock to check (c) a straight stick (d) a magnet
  11. 11.🕰️ What is a sundial used for? (a) making rainbows (b) telling the time (c) measuring rain (d) weighing things
  12. 12.🧺 Do we need chalk to mark shadows for the shadow clock? (a) needed (b) not needed
  13. 13.True or false: frosted glass is opaque. (a) False (b) True
  14. 14.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a clock to check (b) a sunny open place (c) a battery cell (d) a straight stick
  15. 15.🌍 Why does the stick’s shadow move during the day? (a) the stick grows (b) the stick walks (c) the ground slides (d) Earth keeps spinning
  16. 16.🧺 Which of these is not needed for the shadow clock? (a) chalk to mark shadows (b) a sunny open place (c) a battery cell (d) a clock to check
  17. 17.True or false: a straight stick is not needed for the shadow clock. (a) False (b) True
  18. 18.True or false: clear plastic film is translucent. (a) True (b) False
  19. 19.🧺 Do we need a balloon for the shadow clock? (a) needed (b) not needed
  20. 20.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) chalk to mark shadows (b) turmeric powder (c) a straight stick (d) a sunny open place
  21. 21.🛟 What should you wear for a long time in the hot sun? (a) a raincoat (b) nothing on your head (c) a woollen sweater (d) a cap or hat
  22. 22.🧺 Which of these is needed for the shadow clock? (a) yeast (b) a magnet (c) a straight stick (d) a battery cell
  23. 23.🔦 Is clear glass 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? What do we do with “the same stick”? (a) we change it (b) we measure it (c) we keep it the same
  25. 25.🔦 Which of these is opaque? (a) clear plastic film (b) a wooden board (c) frosted glass (d) air
  26. 26.⚖️ Fair test — how does the shadow of a stick change through the day? What do we do with “the stick kept upright”? (a) we change it (b) we measure it (c) we keep it the same
  27. 27.True or false: a mirror is needed for the shadow clock. (a) True (b) False
  28. 28.🔍 Which is the odd one out? (a) frosted glass (b) butter paper (c) clean water (d) oily paper
  29. 29.🔦 Is clean water opaque, translucent or transparent? (a) transparent (b) opaque (c) translucent
  30. 30.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) chalk to mark shadows (b) a clock to check (c) a sunny open place (d) a mirror
  31. 31.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a straight stick (b) chalk to mark shadows (c) a clock to check (d) yeast
  32. 32.🧺 Do we need a straight stick for the shadow clock? (a) not needed (b) needed
  33. 33.⚖️ Fair test — how does the shadow of a stick change through the day? Which of these is what we measure? (a) the stick kept upright (b) the same stick (c) the time of day (d) shadow length
  34. 34.🔦 Which of these is opaque? (a) oily paper (b) frosted glass (c) butter paper (d) a book
  35. 35.🔍 Which is the odd one out? (a) a book (b) oily paper (c) frosted glass (d) tissue paper
  36. 36.🌅 In the morning the Sun is in the east. Which way does a shadow point? (a) west (b) east (c) up (d) north
  37. 37.🔦 Is your hand opaque, translucent or transparent? (a) translucent (b) transparent (c) opaque
  38. 38.True or false: a book is transparent. (a) True (b) False
  39. 39.🔍 Which is the odd one out? (a) butter paper (b) a wooden board (c) oily paper (d) tissue paper
  40. 40.True or false: a book is opaque. (a) False (b) True

Answer key

  1. does not work well
  2. True
  3. True
  4. long
  5. look straight at the Sun
  6. not needed
  7. the time of day
  8. bigger
  9. True
  10. a magnet
  11. telling the time
  12. needed
  13. False
  14. a battery cell
  15. Earth keeps spinning
  16. a battery cell
  17. False
  18. False
  19. not needed
  20. turmeric powder
  21. a cap or hat
  22. a straight stick
  23. transparent
  24. we keep it the same
  25. a wooden board
  26. we keep it the same
  27. False
  28. clean water
  29. transparent
  30. a mirror
  31. yeast
  32. needed
  33. shadow length
  34. a book
  35. a book
  36. west
  37. opaque
  38. False
  39. a wooden board
  40. True

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