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Shadow and Sundial Experiment Worksheet

Science experiments lesson 27: Shadows and a sundial · Set 332 · 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) air (b) a brick (c) a steel plate (d) a wooden board
  2. 2.🔮 Predict: the Sun is low in the evening sky. The stick’s shadow is ___. (a) short (b) missing (c) long (d) round
  3. 3.🧺 Which of these is not needed for the shadow clock? (a) a battery cell (b) a clock to check (c) a straight stick (d) a sunny open place
  4. 4.⚖️ Fair test — how does the shadow of a stick change through the day? What do we do with “the same spot”? (a) we measure it (b) we keep it the same (c) we change it
  5. 5.🛟 What should you wear for a long time in the hot sun? (a) a woollen sweater (b) a raincoat (c) nothing on your head (d) a cap or hat
  6. 6.🔦 Is a book opaque, translucent or transparent? (a) translucent (b) opaque (c) transparent
  7. 7.True or false: chalk to mark shadows is not needed for the shadow clock. (a) False (b) True
  8. 8.🔦 Is a steel plate opaque, translucent or transparent? (a) translucent (b) opaque (c) transparent
  9. 9.🔍 Which is the odd one out? (a) clear glass (b) clean water (c) air (d) frosted glass
  10. 10.🛟 While watching shadows outdoors, what must you never do? (a) wear a cap (b) look straight at the Sun (c) sit in the shade (d) mark with chalk
  11. 11.🌍 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
  12. 12.True or false: a straight stick is not needed for the shadow clock. (a) True (b) False
  13. 13.🧺 Which of these is needed for the shadow clock? (a) a balloon (b) yeast (c) a magnet (d) chalk to mark shadows
  14. 14.⚖️ Fair test — how does the shadow of a stick change through the day? What do we do with “the same stick”? (a) we measure it (b) we change it (c) we keep it the same
  15. 15.🔮 Predict: you move a torch closer to your hand. The shadow on the wall gets ___. (a) coloured (b) smaller (c) brighter (d) bigger
  16. 16.🧺 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) turmeric powder (d) a straight stick
  17. 17.🧺 Do we need a mirror for the shadow clock? (a) not needed (b) needed
  18. 18.⚖️ 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
  19. 19.🔦 Which of these is translucent? (a) a brick (b) tissue paper (c) clear glass (d) a book
  20. 20.🔦 Is a wooden board opaque, translucent or transparent? (a) transparent (b) opaque (c) translucent
  21. 21.🧺 Do we need a clock to check for the shadow clock? (a) needed (b) not needed
  22. 22.🔦 Which of these is opaque? (a) oily paper (b) butter paper (c) a wooden board (d) clean water
  23. 23.True or false: a clock to check is needed for the shadow clock. (a) True (b) False
  24. 24.🧺 Which of these is not needed for the shadow clock? (a) a clock to check (b) chalk to mark shadows (c) a straight stick (d) a mirror
  25. 25.🔦 Which of these is transparent? (a) tissue paper (b) clean water (c) a book (d) your hand
  26. 26.🧺 Which of these is not needed for the shadow clock? (a) a clock to check (b) a sunny open place (c) yeast (d) a straight stick
  27. 27.🔍 Which is the odd one out? (a) oily paper (b) air (c) clear glass (d) clear plastic film
  28. 28.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the stick kept upright is kept the same. (a) True (b) False
  29. 29.🔮 Predict: on a fully cloudy day, the sundial ___. (a) does not work well (b) runs faster (c) works better (d) shows two times
  30. 30.🔦 Which of these is translucent? (a) air (b) clean water (c) a wooden board (d) butter paper
  31. 31.🧺 Do we need yeast for the shadow clock? (a) needed (b) not needed
  32. 32.True or false: clean water is translucent. (a) True (b) False
  33. 33.True or false: yeast is not needed for the shadow clock. (a) True (b) False
  34. 34.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the same spot is the one thing we change. (a) True (b) False
  35. 35.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the same stick is the one thing we change. (a) True (b) False
  36. 36.⚖️ 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
  37. 37.🧺 Do we need a battery cell for the shadow clock? (a) not needed (b) needed
  38. 38.🌞 When is a stick’s shadow the shortest? (a) early morning (b) late evening (c) around noon (d) at night
  39. 39.🌅 In the morning the Sun is in the east. Which way does a shadow point? (a) up (b) east (c) north (d) west
  40. 40.⚖️ 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

Answer key

  1. air
  2. long
  3. a battery cell
  4. we keep it the same
  5. a cap or hat
  6. opaque
  7. False
  8. opaque
  9. frosted glass
  10. look straight at the Sun
  11. Earth keeps spinning
  12. False
  13. chalk to mark shadows
  14. we keep it the same
  15. bigger
  16. turmeric powder
  17. not needed
  18. True
  19. tissue paper
  20. opaque
  21. needed
  22. a wooden board
  23. True
  24. a mirror
  25. clean water
  26. yeast
  27. oily paper
  28. True
  29. does not work well
  30. butter paper
  31. not needed
  32. False
  33. True
  34. False
  35. False
  36. True
  37. not needed
  38. around noon
  39. west
  40. we change it

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