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Shadow and Sundial Experiment Worksheet

Science experiments lesson 27: Shadows and a sundial · Set 750 · 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.🔦 Is a wooden board opaque, translucent or transparent? (a) translucent (b) transparent (c) opaque
  2. 2.🔦 Which of these is transparent? (a) a brick (b) tissue paper (c) your hand (d) clean water
  3. 3.🧺 Which of these is needed for the shadow clock? (a) a magnet (b) a sunny open place (c) a balloon (d) turmeric powder
  4. 4.🧺 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 mirror
  5. 5.🧺 Which of these is not needed for the shadow clock? (a) a sunny open place (b) a battery cell (c) chalk to mark shadows (d) a clock to check
  6. 6.🛟 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
  7. 7.🧺 Do we need a mirror for the shadow clock? (a) not needed (b) needed
  8. 8.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the same spot is what we measure. (a) False (b) True
  9. 9.🔮 Predict: the Sun is low in the evening sky. The stick’s shadow is ___. (a) long (b) short (c) round (d) missing
  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) yeast
  11. 11.🧺 Do we need chalk to mark shadows for the shadow clock? (a) not needed (b) needed
  12. 12.True or false: a mirror is needed for the shadow clock. (a) True (b) False
  13. 13.🛟 While watching shadows outdoors, what must you never do? (a) mark with chalk (b) wear a cap (c) sit in the shade (d) look straight at the Sun
  14. 14.🔦 Is air opaque, translucent or transparent? (a) translucent (b) transparent (c) opaque
  15. 15.🔍 Which is the odd one out? (a) air (b) clear plastic film (c) clean water (d) butter paper
  16. 16.🔮 Predict: you move a torch closer to your hand. The shadow on the wall gets ___. (a) bigger (b) coloured (c) brighter (d) smaller
  17. 17.🔦 Which of these is opaque? (a) clear plastic film (b) a steel plate (c) frosted glass (d) clean water
  18. 18.True or false: a clock to check is not needed for the shadow clock. (a) True (b) False
  19. 19.🔦 Is your hand opaque, translucent or transparent? (a) opaque (b) transparent (c) translucent
  20. 20.🧺 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) turmeric powder
  21. 21.⚖️ 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
  22. 22.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a clock to check (b) a balloon (c) chalk to mark shadows (d) a sunny open place
  23. 23.🔍 Which is the odd one out? (a) tissue paper (b) your hand (c) frosted glass (d) butter paper
  24. 24.True or false: turmeric powder is not needed for the shadow clock. (a) True (b) False
  25. 25.🧺 Do we need a straight stick for the shadow clock? (a) not needed (b) needed
  26. 26.True or false: a battery cell is needed for the shadow clock. (a) True (b) False
  27. 27.True or false: a sunny open place is needed for the shadow clock. (a) True (b) False
  28. 28.🔍 Which is the odd one out? (a) a wooden board (b) oily paper (c) a brick (d) your hand
  29. 29.⚖️ 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
  30. 30.True or false: clear plastic film is transparent. (a) False (b) True
  31. 31.⚖️ Fair test — how does the shadow of a stick change through the day? What do we do with “shadow length”? (a) we change it (b) we measure it (c) we keep it the same
  32. 32.🔮 Predict: on a fully cloudy day, the sundial ___. (a) shows two times (b) works better (c) does not work well (d) runs faster
  33. 33.True or false: butter paper is translucent. (a) False (b) True
  34. 34.True or false: turmeric powder is needed for the shadow clock. (a) True (b) False
  35. 35.🧺 Do we need a clock to check for the shadow clock? (a) not needed (b) needed
  36. 36.🧺 Which of these is not needed for the shadow clock? (a) a sunny open place (b) a mirror (c) chalk to mark shadows (d) a straight stick
  37. 37.🧺 Do we need turmeric powder for the shadow clock? (a) needed (b) not needed
  38. 38.🔍 Which is the odd one out? (a) tissue paper (b) butter paper (c) air (d) frosted glass
  39. 39.🔦 Which of these is transparent? (a) tissue paper (b) clear glass (c) oily paper (d) a wooden board
  40. 40.🧺 Which of these is needed for the shadow clock? (a) chalk to mark shadows (b) a mirror (c) a battery cell (d) a balloon

Answer key

  1. opaque
  2. clean water
  3. a sunny open place
  4. a mirror
  5. a battery cell
  6. a cap or hat
  7. not needed
  8. False
  9. long
  10. yeast
  11. needed
  12. False
  13. look straight at the Sun
  14. transparent
  15. butter paper
  16. bigger
  17. a steel plate
  18. False
  19. opaque
  20. turmeric powder
  21. we keep it the same
  22. a balloon
  23. your hand
  24. True
  25. needed
  26. False
  27. True
  28. oily paper
  29. we keep it the same
  30. True
  31. we measure it
  32. does not work well
  33. True
  34. False
  35. needed
  36. a mirror
  37. not needed
  38. air
  39. clear glass
  40. chalk to mark shadows

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