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Shadow and Sundial Experiment Worksheet

Science experiments lesson 27: Shadows and a sundial · Set 310 · 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.⚖️ 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
  2. 2.🔦 Which of these is translucent? (a) your hand (b) clear glass (c) a wooden board (d) oily paper
  3. 3.True or false: a balloon is not needed for the shadow clock. (a) True (b) False
  4. 4.True or false: a wooden board is opaque. (a) False (b) True
  5. 5.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a straight stick (b) a sunny open place (c) turmeric powder (d) chalk to mark shadows
  6. 6.🔦 Which of these is opaque? (a) oily paper (b) a wooden board (c) butter paper (d) clean water
  7. 7.🔍 Which is the odd one out? (a) a steel plate (b) a wooden board (c) a brick (d) clear plastic film
  8. 8.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a clock to check (b) a straight stick (c) chalk to mark shadows (d) yeast
  9. 9.🔮 Predict: you move a torch closer to your hand. The shadow on the wall gets ___. (a) smaller (b) brighter (c) bigger (d) coloured
  10. 10.⚖️ 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 stick kept upright (c) shadow length (d) the time of day
  11. 11.True or false: a balloon is needed for the shadow clock. (a) True (b) False
  12. 12.True or false: oily paper is transparent. (a) True (b) False
  13. 13.True or false: chalk to mark shadows is not needed for the shadow clock. (a) False (b) True
  14. 14.🧺 Do we need chalk to mark shadows for the shadow clock? (a) not needed (b) needed
  15. 15.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) chalk to mark shadows (b) a balloon (c) a sunny open place (d) a straight stick
  16. 16.True or false: clean water is opaque. (a) False (b) True
  17. 17.⚖️ Fair test — how does the shadow of a stick change through the day? What do we do with “the stick kept upright”? (a) we measure it (b) we change it (c) we keep it the same
  18. 18.True or false: turmeric powder is not needed for the shadow clock. (a) True (b) False
  19. 19.🔦 Is clean water opaque, translucent or transparent? (a) transparent (b) translucent (c) opaque
  20. 20.🛟 What should you wear for a long time in the hot sun? (a) nothing on your head (b) a cap or hat (c) a woollen sweater (d) a raincoat
  21. 21.🧺 Do we need a magnet for the shadow clock? (a) not needed (b) needed
  22. 22.True or false: a mirror is not needed for the shadow clock. (a) False (b) True
  23. 23.🛟 While watching shadows outdoors, what must you never do? (a) look straight at the Sun (b) sit in the shade (c) mark with chalk (d) wear a cap
  24. 24.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the same stick is what we measure. (a) False (b) True
  25. 25.🔦 Is a brick opaque, translucent or transparent? (a) translucent (b) transparent (c) opaque
  26. 26.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the time of day is kept the same. (a) True (b) False
  27. 27.🔦 Is butter paper opaque, translucent or transparent? (a) opaque (b) translucent (c) transparent
  28. 28.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a magnet (b) a sunny open place (c) chalk to mark shadows (d) a straight stick
  29. 29.🧺 Which of these is needed for the shadow clock? (a) yeast (b) a battery cell (c) a clock to check (d) a balloon
  30. 30.🧺 Do we need a mirror for the shadow clock? (a) not needed (b) needed
  31. 31.🧺 Do we need a straight stick for the shadow clock? (a) not needed (b) needed
  32. 32.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the same spot is kept the same. (a) True (b) False
  33. 33.🔦 Which of these is translucent? (a) a steel plate (b) air (c) clean water (d) butter paper
  34. 34.🔮 Predict: the Sun is low in the evening sky. The stick’s shadow is ___. (a) short (b) round (c) missing (d) long
  35. 35.True or false: frosted glass is translucent. (a) True (b) False
  36. 36.True or false: a battery cell is not needed for the shadow clock. (a) False (b) True
  37. 37.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: shadow length is what we measure. (a) False (b) True
  38. 38.🔦 Is a steel plate opaque, translucent or transparent? (a) transparent (b) translucent (c) opaque
  39. 39.🔍 Which is the odd one out? (a) clean water (b) clear glass (c) air (d) frosted glass
  40. 40.⚖️ 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

Answer key

  1. we keep it the same
  2. oily paper
  3. True
  4. True
  5. turmeric powder
  6. a wooden board
  7. clear plastic film
  8. yeast
  9. bigger
  10. the time of day
  11. False
  12. False
  13. False
  14. needed
  15. a balloon
  16. False
  17. we keep it the same
  18. True
  19. transparent
  20. a cap or hat
  21. not needed
  22. True
  23. look straight at the Sun
  24. False
  25. opaque
  26. False
  27. translucent
  28. a magnet
  29. a clock to check
  30. not needed
  31. needed
  32. True
  33. butter paper
  34. long
  35. True
  36. True
  37. True
  38. opaque
  39. frosted glass
  40. shadow length

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