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Shadow and Sundial Experiment Worksheet

Science experiments lesson 27: Shadows and a sundial · Set 90 · 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.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a sunny open place (b) yeast (c) a clock to check (d) a straight stick
  2. 2.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a clock to check (b) turmeric powder (c) a straight stick (d) chalk to mark shadows
  3. 3.True or false: a sunny open place is not needed for the shadow clock. (a) True (b) False
  4. 4.True or false: clean water is opaque. (a) True (b) False
  5. 5.⚖️ 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) shadow length (d) the same spot
  6. 6.🔮 Predict: on a fully cloudy day, the sundial ___. (a) does not work well (b) shows two times (c) runs faster (d) works better
  7. 7.🧺 Which of these is needed for the shadow clock? (a) a balloon (b) a mirror (c) chalk to mark shadows (d) yeast
  8. 8.True or false: air is translucent. (a) True (b) False
  9. 9.⚖️ Fair test — how does the shadow of a stick change through the day? What do we do with “shadow length”? (a) we measure it (b) we change it (c) we keep it the same
  10. 10.🔮 Predict: you move a torch closer to your hand. The shadow on the wall gets ___. (a) brighter (b) coloured (c) smaller (d) bigger
  11. 11.True or false: a magnet is needed for the shadow clock. (a) False (b) True
  12. 12.🕰️ What is a sundial used for? (a) weighing things (b) measuring rain (c) making rainbows (d) telling the time
  13. 13.🔦 Is clear plastic film opaque, translucent or transparent? (a) transparent (b) translucent (c) opaque
  14. 14.True or false: a wooden board is transparent. (a) False (b) True
  15. 15.⚖️ Fair test — how does the shadow of a stick change through the day? What do we do with “the time of day”? (a) we change it (b) we measure it (c) we keep it the same
  16. 16.🛟 What should you wear for a long time in the hot sun? (a) a woollen sweater (b) nothing on your head (c) a cap or hat (d) a raincoat
  17. 17.🧺 Do we need chalk to mark shadows for the shadow clock? (a) needed (b) not needed
  18. 18.True or false: a book is opaque. (a) True (b) False
  19. 19.🔍 Which is the odd one out? (a) a brick (b) a wooden board (c) your hand (d) air
  20. 20.🔍 Which is the odd one out? (a) clear plastic film (b) air (c) oily paper (d) clean water
  21. 21.⚖️ 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 keep it the same (c) we measure it
  22. 22.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a balloon (b) a clock to check (c) chalk to mark shadows (d) a sunny open place
  23. 23.🧺 Which of these is not needed for the shadow clock? (a) a clock to check (b) a sunny open place (c) chalk to mark shadows (d) turmeric powder
  24. 24.🧺 Do we need a battery cell for the shadow clock? (a) not needed (b) needed
  25. 25.🔦 Is air opaque, translucent or transparent? (a) opaque (b) translucent (c) transparent
  26. 26.🧺 Which of these is needed for the shadow clock? (a) a mirror (b) a clock to check (c) a magnet (d) yeast
  27. 27.🔍 Which is the odd one out? (a) a wooden board (b) clean water (c) a book (d) your hand
  28. 28.True or false: butter paper is opaque. (a) False (b) True
  29. 29.True or false: a battery cell is needed for the shadow clock. (a) True (b) False
  30. 30.🔍 Which is the odd one out? (a) your hand (b) a wooden board (c) a book (d) clear glass
  31. 31.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a mirror (b) a sunny open place (c) a straight stick (d) chalk to mark shadows
  32. 32.🧺 Which of these is not needed for the shadow clock? (a) a straight stick (b) a sunny open place (c) a clock to check (d) a magnet
  33. 33.🌅 In the morning the Sun is in the east. Which way does a shadow point? (a) east (b) north (c) up (d) west
  34. 34.🧺 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 sunny open place
  35. 35.🧺 Do we need yeast for the shadow clock? (a) needed (b) not needed
  36. 36.🔦 Is clear glass opaque, translucent or transparent? (a) opaque (b) translucent (c) transparent
  37. 37.🔮 Predict: the Sun is low in the evening sky. The stick’s shadow is ___. (a) round (b) long (c) missing (d) short
  38. 38.⚖️ Fair test — how does the shadow of a stick change through the day? Which of these is kept the same? (a) the same stick (b) the time of day (c) shadow length
  39. 39.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the same stick is kept the same. (a) False (b) True
  40. 40.🔍 Which is the odd one out? (a) a book (b) your hand (c) tissue paper (d) a brick

Answer key

  1. yeast
  2. turmeric powder
  3. False
  4. False
  5. shadow length
  6. does not work well
  7. chalk to mark shadows
  8. False
  9. we measure it
  10. bigger
  11. False
  12. telling the time
  13. transparent
  14. False
  15. we change it
  16. a cap or hat
  17. needed
  18. True
  19. air
  20. oily paper
  21. we keep it the same
  22. a balloon
  23. turmeric powder
  24. not needed
  25. transparent
  26. a clock to check
  27. clean water
  28. False
  29. False
  30. clear glass
  31. a mirror
  32. a magnet
  33. west
  34. a magnet
  35. not needed
  36. transparent
  37. long
  38. the same stick
  39. True
  40. tissue paper

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