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Shadow and Sundial Experiment Worksheet

Science experiments lesson 27: Shadows and a sundial · Set 64 · 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.🔍 Which is the odd one out? (a) butter paper (b) tissue paper (c) a wooden board (d) oily paper
  2. 2.🔍 Which is the odd one out? (a) clear glass (b) frosted glass (c) clear plastic film (d) air
  3. 3.🔦 Is tissue paper opaque, translucent or transparent? (a) opaque (b) translucent (c) transparent
  4. 4.🔦 Is frosted glass opaque, translucent or transparent? (a) transparent (b) translucent (c) opaque
  5. 5.True or false: a steel plate is transparent. (a) True (b) False
  6. 6.🧺 Do we need a battery cell for the shadow clock? (a) needed (b) not needed
  7. 7.True or false: tissue paper is translucent. (a) False (b) True
  8. 8.⚖️ 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 same spot (c) the same stick (d) the time of day
  9. 9.🔦 Is a book opaque, translucent or transparent? (a) opaque (b) translucent (c) transparent
  10. 10.🌅 In the morning the Sun is in the east. Which way does a shadow point? (a) east (b) west (c) north (d) up
  11. 11.🔦 Which of these is opaque? (a) frosted glass (b) clear glass (c) butter paper (d) your hand
  12. 12.🔍 Which is the odd one out? (a) butter paper (b) tissue paper (c) a brick (d) oily paper
  13. 13.🌍 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
  14. 14.⚖️ Fair test — how does the shadow of a stick change through the day? What do we do with “the time of day”? (a) we measure it (b) we keep it the same (c) we change it
  15. 15.True or false: a sunny open place is not needed for the shadow clock. (a) True (b) False
  16. 16.🧺 Do we need turmeric powder for the shadow clock? (a) needed (b) not needed
  17. 17.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a mirror (b) a clock to check (c) a sunny open place (d) chalk to mark shadows
  18. 18.True or false: butter paper is transparent. (a) False (b) True
  19. 19.🔮 Predict: on a fully cloudy day, the sundial ___. (a) works better (b) runs faster (c) shows two times (d) does not work well
  20. 20.⚖️ Fair test — how does the shadow of a stick change through the day? Which of these is kept the same? (a) the stick kept upright (b) the time of day (c) shadow length
  21. 21.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a sunny open place (b) a clock to check (c) a straight stick (d) a balloon
  22. 22.🛟 What should you wear for a long time in the hot sun? (a) a cap or hat (b) a raincoat (c) a woollen sweater (d) nothing on your head
  23. 23.🧺 Which of these is needed for the shadow clock? (a) yeast (b) chalk to mark shadows (c) a balloon (d) a mirror
  24. 24.🔦 Is a wooden board opaque, translucent or transparent? (a) transparent (b) opaque (c) translucent
  25. 25.True or false: yeast is not needed for the shadow clock. (a) True (b) False
  26. 26.🧺 Do we need a balloon for the shadow clock? (a) not needed (b) needed
  27. 27.🧺 Which of these is not needed for the shadow clock? (a) a sunny open place (b) a magnet (c) a clock to check (d) a straight stick
  28. 28.🔍 Which is the odd one out? (a) clean water (b) a wooden board (c) a steel plate (d) your hand
  29. 29.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a straight stick (b) a sunny open place (c) chalk to mark shadows (d) turmeric powder
  30. 30.True or false: your hand is opaque. (a) True (b) False
  31. 31.🔦 Which of these is transparent? (a) oily paper (b) a book (c) clean water (d) a steel plate
  32. 32.True or false: a straight stick is needed for the shadow clock. (a) False (b) True
  33. 33.🔦 Which of these is translucent? (a) clean water (b) butter paper (c) a wooden board (d) clear glass
  34. 34.🔦 Which of these is translucent? (a) a wooden board (b) oily paper (c) a steel plate (d) clear glass
  35. 35.⚖️ 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
  36. 36.⚖️ 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 stick kept upright (c) the time of day (d) the same stick
  37. 37.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) chalk to mark shadows (b) a magnet (c) a straight stick (d) a clock to check
  38. 38.🔦 Which of these is opaque? (a) frosted glass (b) butter paper (c) a book (d) tissue paper
  39. 39.🔦 Is butter paper opaque, translucent or transparent? (a) transparent (b) translucent (c) opaque
  40. 40.🔮 Predict: you move a torch closer to your hand. The shadow on the wall gets ___. (a) coloured (b) bigger (c) brighter (d) smaller

Answer key

  1. a wooden board
  2. frosted glass
  3. translucent
  4. translucent
  5. False
  6. not needed
  7. True
  8. the time of day
  9. opaque
  10. west
  11. your hand
  12. a brick
  13. Earth keeps spinning
  14. we change it
  15. False
  16. not needed
  17. a mirror
  18. False
  19. does not work well
  20. the stick kept upright
  21. a balloon
  22. a cap or hat
  23. chalk to mark shadows
  24. opaque
  25. True
  26. not needed
  27. a magnet
  28. clean water
  29. turmeric powder
  30. True
  31. clean water
  32. True
  33. butter paper
  34. oily paper
  35. we keep it the same
  36. shadow length
  37. a magnet
  38. a book
  39. translucent
  40. bigger

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