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Shadow and Sundial Experiment Worksheet

Science experiments lesson 27: Shadows and a sundial · Set 902 · 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.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a sunny open place (b) chalk to mark shadows (c) yeast (d) a straight stick
  2. 2.🛟 What should you wear for a long time in the hot sun? (a) a woollen sweater (b) nothing on your head (c) a raincoat (d) a cap or hat
  3. 3.🧺 Which of these is needed for the shadow clock? (a) yeast (b) a straight stick (c) a battery cell (d) turmeric powder
  4. 4.🔮 Predict: the Sun is low in the evening sky. The stick’s shadow is ___. (a) round (b) long (c) short (d) missing
  5. 5.True or false: a clock to check is not needed for the shadow clock. (a) False (b) True
  6. 6.⚖️ 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
  7. 7.🧺 Which of these is not needed for the shadow clock? (a) a clock to check (b) a straight stick (c) a sunny open place (d) a battery cell
  8. 8.🌍 Why does the stick’s shadow move during the day? (a) the stick grows (b) the ground slides (c) the stick walks (d) Earth keeps spinning
  9. 9.🔍 Which is the odd one out? (a) tissue paper (b) frosted glass (c) butter paper (d) a book
  10. 10.True or false: a magnet is not needed for the shadow clock. (a) False (b) True
  11. 11.🔍 Which is the odd one out? (a) butter paper (b) oily paper (c) a wooden board (d) tissue paper
  12. 12.True or false: clear plastic film is opaque. (a) True (b) False
  13. 13.🔍 Which is the odd one out? (a) tissue paper (b) a steel plate (c) a book (d) a wooden board
  14. 14.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) chalk to mark shadows (b) a sunny open place (c) a balloon (d) a straight stick
  15. 15.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the stick kept upright is the one thing we change. (a) False (b) True
  16. 16.🔍 Which is the odd one out? (a) clear plastic film (b) clear glass (c) butter paper (d) air
  17. 17.True or false: yeast is needed for the shadow clock. (a) True (b) False
  18. 18.🧺 Which of these is not needed for the shadow clock? (a) a straight stick (b) a clock to check (c) chalk to mark shadows (d) a balloon
  19. 19.⚖️ 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) shadow length (c) the time of day (d) the stick kept upright
  20. 20.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a clock to check (b) a straight stick (c) turmeric powder (d) a sunny open place
  21. 21.🕰️ What is a sundial used for? (a) making rainbows (b) measuring rain (c) weighing things (d) telling the time
  22. 22.🧺 Do we need turmeric powder for the shadow clock? (a) not needed (b) needed
  23. 23.🧺 Do we need a battery cell for the shadow clock? (a) needed (b) not needed
  24. 24.🔮 Predict: you move a torch closer to your hand. The shadow on the wall gets ___. (a) smaller (b) brighter (c) bigger (d) coloured
  25. 25.True or false: a sunny open place is not needed for the shadow clock. (a) True (b) False
  26. 26.⚖️ Fair test — how does the shadow of a stick change through the day? Which of these is kept the same? (a) shadow length (b) the stick kept upright (c) the time of day
  27. 27.True or false: frosted glass is translucent. (a) False (b) True
  28. 28.🧺 Do we need a sunny open place for the shadow clock? (a) not needed (b) needed
  29. 29.🔦 Which of these is translucent? (a) a book (b) oily paper (c) a brick (d) a wooden board
  30. 30.🧺 Do we need a straight stick for the shadow clock? (a) not needed (b) needed
  31. 31.🧺 Which of these is needed for the shadow clock? (a) a clock to check (b) a battery cell (c) a magnet (d) a balloon
  32. 32.⚖️ Fair test — how does the shadow of a stick change through the day? What do we do with “the same spot”? (a) we change it (b) we measure it (c) we keep it the same
  33. 33.🔦 Which of these is transparent? (a) air (b) frosted glass (c) a book (d) butter paper
  34. 34.⚖️ 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
  35. 35.True or false: your hand is opaque. (a) True (b) False
  36. 36.🔦 Is a book opaque, translucent or transparent? (a) transparent (b) translucent (c) opaque
  37. 37.🔦 Is a steel plate opaque, translucent or transparent? (a) opaque (b) translucent (c) transparent
  38. 38.🔦 Is clear glass opaque, translucent or transparent? (a) opaque (b) transparent (c) translucent
  39. 39.🧺 Do we need a magnet for the shadow clock? (a) not needed (b) needed
  40. 40.True or false: tissue paper is opaque. (a) True (b) False

Answer key

  1. yeast
  2. a cap or hat
  3. a straight stick
  4. long
  5. False
  6. we keep it the same
  7. a battery cell
  8. Earth keeps spinning
  9. a book
  10. True
  11. a wooden board
  12. False
  13. tissue paper
  14. a balloon
  15. False
  16. butter paper
  17. False
  18. a balloon
  19. shadow length
  20. turmeric powder
  21. telling the time
  22. not needed
  23. not needed
  24. bigger
  25. False
  26. the stick kept upright
  27. True
  28. needed
  29. oily paper
  30. needed
  31. a clock to check
  32. we keep it the same
  33. air
  34. False
  35. True
  36. opaque
  37. opaque
  38. transparent
  39. not needed
  40. False

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