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Shadow and Sundial Experiment Worksheet

Science experiments lesson 27: Shadows and a sundial · Set 196 · 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 of these is not needed for the shadow clock? (a) a straight stick (b) a balloon (c) a clock to check (d) a sunny open place
  2. 2.🛟 While watching shadows outdoors, what must you never do? (a) wear a cap (b) sit in the shade (c) mark with chalk (d) look straight at the Sun
  3. 3.True or false: a clock to check is needed for the shadow clock. (a) True (b) False
  4. 4.🔮 Predict: you move a torch closer to your hand. The shadow on the wall gets ___. (a) smaller (b) bigger (c) brighter (d) coloured
  5. 5.True or false: a balloon is needed for the shadow clock. (a) False (b) True
  6. 6.🔦 Which of these is opaque? (a) clear glass (b) frosted glass (c) a steel plate (d) clear plastic film
  7. 7.🔍 Which is the odd one out? (a) a wooden board (b) a steel plate (c) clear glass (d) a book
  8. 8.🔍 Which is the odd one out? (a) tissue paper (b) butter paper (c) a brick (d) frosted glass
  9. 9.True or false: tissue paper is transparent. (a) True (b) False
  10. 10.True or false: clear plastic film is transparent. (a) True (b) False
  11. 11.🌅 In the morning the Sun is in the east. Which way does a shadow point? (a) up (b) east (c) west (d) north
  12. 12.🔦 Which of these is opaque? (a) clear glass (b) frosted glass (c) a wooden board (d) air
  13. 13.🔍 Which is the odd one out? (a) a book (b) a wooden board (c) tissue paper (d) a steel plate
  14. 14.True or false: clean water is opaque. (a) True (b) False
  15. 15.🔍 Which is the odd one out? (a) oily paper (b) tissue paper (c) butter paper (d) clean water
  16. 16.🔮 Predict: on a fully cloudy day, the sundial ___. (a) works better (b) shows two times (c) runs faster (d) does not work well
  17. 17.🧺 Do we need chalk to mark shadows for the shadow clock? (a) needed (b) not needed
  18. 18.⚖️ 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
  19. 19.True or false: oily paper is opaque. (a) True (b) False
  20. 20.⚖️ Fair test — how does the shadow of a stick change through the day? Which of these is what we measure? (a) the time of day (b) the stick kept upright (c) shadow length (d) the same stick
  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 change it (b) we keep it the same (c) we measure it
  22. 22.⚖️ 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 time of day (c) the same stick
  23. 23.True or false: a steel plate is translucent. (a) False (b) True
  24. 24.🔮 Predict: the Sun is low in the evening sky. The stick’s shadow is ___. (a) long (b) short (c) round (d) missing
  25. 25.🔍 Which is the odd one out? (a) air (b) oily paper (c) butter paper (d) tissue paper
  26. 26.🧺 Do we need a magnet for the shadow clock? (a) not needed (b) needed
  27. 27.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a straight stick (b) a balloon (c) a clock to check (d) chalk to mark shadows
  28. 28.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a straight stick (b) a clock to check (c) a sunny open place (d) a mirror
  29. 29.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the same spot is what we measure. (a) True (b) False
  30. 30.True or false: a straight stick is not needed for the shadow clock. (a) False (b) True
  31. 31.⚖️ 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
  32. 32.🕰️ What is a sundial used for? (a) making rainbows (b) weighing things (c) measuring rain (d) telling the time
  33. 33.True or false: a battery cell is not needed for the shadow clock. (a) False (b) True
  34. 34.🧺 Do we need yeast for the shadow clock? (a) not needed (b) needed
  35. 35.🔦 Is a book opaque, translucent or transparent? (a) translucent (b) transparent (c) opaque
  36. 36.🧺 Which of these is not needed for the shadow clock? (a) a sunny open place (b) chalk to mark shadows (c) yeast (d) a straight stick
  37. 37.🔦 Is clean water opaque, translucent or transparent? (a) opaque (b) translucent (c) transparent
  38. 38.🔦 Which of these is transparent? (a) a book (b) frosted glass (c) a steel plate (d) clear plastic film
  39. 39.🧺 Which of these is needed for the shadow clock? (a) a sunny open place (b) yeast (c) a balloon (d) a magnet
  40. 40.🛟 What should you wear for a long time in the hot sun? (a) a cap or hat (b) a raincoat (c) a woollen sweater (d) nothing on your head

Answer key

  1. a balloon
  2. look straight at the Sun
  3. True
  4. bigger
  5. False
  6. a steel plate
  7. clear glass
  8. a brick
  9. False
  10. True
  11. west
  12. a wooden board
  13. tissue paper
  14. False
  15. clean water
  16. does not work well
  17. needed
  18. we change it
  19. False
  20. shadow length
  21. we keep it the same
  22. the same stick
  23. False
  24. long
  25. air
  26. not needed
  27. a balloon
  28. a mirror
  29. False
  30. False
  31. we keep it the same
  32. telling the time
  33. True
  34. not needed
  35. opaque
  36. yeast
  37. transparent
  38. clear plastic film
  39. a sunny open place
  40. a cap or hat

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