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Shadow and Sundial Experiment Worksheet

Science experiments lesson 27: Shadows and a sundial · Set 527 · 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.🛟 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
  2. 2.🛟 While watching shadows outdoors, what must you never do? (a) wear a cap (b) mark with chalk (c) look straight at the Sun (d) sit in the shade
  3. 3.🧺 Which of these is not needed for the shadow clock? (a) a magnet (b) a clock to check (c) a straight stick (d) chalk to mark shadows
  4. 4.🔦 Is clear glass opaque, translucent or transparent? (a) opaque (b) translucent (c) transparent
  5. 5.True or false: clear plastic film is transparent. (a) True (b) False
  6. 6.True or false: a clock to check is needed for the shadow clock. (a) False (b) True
  7. 7.🔦 Is tissue paper opaque, translucent or transparent? (a) translucent (b) transparent (c) opaque
  8. 8.🧺 Which of these is needed for the shadow clock? (a) a magnet (b) a battery cell (c) a balloon (d) a clock to check
  9. 9.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the time of day is what we measure. (a) True (b) False
  10. 10.🔦 Which of these is transparent? (a) tissue paper (b) a wooden board (c) a book (d) air
  11. 11.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) chalk to mark shadows (b) a sunny open place (c) yeast (d) a clock to check
  12. 12.True or false: clean water is translucent. (a) False (b) True
  13. 13.🔦 Is air opaque, translucent or transparent? (a) translucent (b) opaque (c) transparent
  14. 14.True or false: a book is translucent. (a) True (b) False
  15. 15.🔮 Predict: the Sun is low in the evening sky. The stick’s shadow is ___. (a) missing (b) long (c) round (d) short
  16. 16.🧺 Which of these is needed for the shadow clock? (a) a magnet (b) turmeric powder (c) a straight stick (d) a balloon
  17. 17.🔦 Which of these is translucent? (a) clear glass (b) frosted glass (c) clean water (d) air
  18. 18.True or false: a mirror is not needed for the shadow clock. (a) False (b) True
  19. 19.🧺 Do we need a straight stick for the shadow clock? (a) not needed (b) needed
  20. 20.🔦 Which of these is translucent? (a) a brick (b) clear glass (c) butter paper (d) your hand
  21. 21.🕰️ What is a sundial used for? (a) making rainbows (b) weighing things (c) telling the time (d) measuring rain
  22. 22.🌅 In the morning the Sun is in the east. Which way does a shadow point? (a) west (b) east (c) up (d) north
  23. 23.⚖️ Fair test — how does the shadow of a stick change through the day? Which of these is the one thing we change? (a) the time of day (b) the same stick (c) the same spot (d) shadow length
  24. 24.True or false: yeast is not needed for the shadow clock. (a) False (b) True
  25. 25.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the same stick is kept the same. (a) True (b) False
  26. 26.⚖️ 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) False (b) True
  27. 27.⚖️ 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
  28. 28.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a clock to check (b) chalk to mark shadows (c) a straight stick (d) a magnet
  29. 29.True or false: turmeric powder is needed for the shadow clock. (a) True (b) False
  30. 30.🔦 Is frosted glass opaque, translucent or transparent? (a) opaque (b) translucent (c) transparent
  31. 31.🧺 Which of these is not needed for the shadow clock? (a) a clock to check (b) a sunny open place (c) a battery cell (d) a straight stick
  32. 32.⚖️ Fair test — how does the shadow of a stick change through the day? What do we do with “shadow length”? (a) we keep it the same (b) we measure it (c) we change it
  33. 33.🧺 Do we need a sunny open place for the shadow clock? (a) needed (b) not needed
  34. 34.🔮 Predict: you move a torch closer to your hand. The shadow on the wall gets ___. (a) bigger (b) coloured (c) smaller (d) brighter
  35. 35.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the time of day is the one thing we change. (a) True (b) False
  36. 36.🧺 Do we need turmeric powder for the shadow clock? (a) not needed (b) needed
  37. 37.⚖️ Fair test — how does the shadow of a stick change through the day? Which of these is kept the same? (a) the same spot (b) the time of day (c) shadow length
  38. 38.🔦 Which of these is opaque? (a) a wooden board (b) tissue paper (c) oily paper (d) frosted glass
  39. 39.⚖️ 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
  40. 40.🔮 Predict: on a fully cloudy day, the sundial ___. (a) does not work well (b) shows two times (c) runs faster (d) works better

Answer key

  1. a cap or hat
  2. look straight at the Sun
  3. a magnet
  4. transparent
  5. True
  6. True
  7. translucent
  8. a clock to check
  9. False
  10. air
  11. yeast
  12. False
  13. transparent
  14. False
  15. long
  16. a straight stick
  17. frosted glass
  18. True
  19. needed
  20. butter paper
  21. telling the time
  22. west
  23. the time of day
  24. True
  25. True
  26. False
  27. True
  28. a magnet
  29. False
  30. translucent
  31. a battery cell
  32. we measure it
  33. needed
  34. bigger
  35. True
  36. not needed
  37. the same spot
  38. a wooden board
  39. False
  40. does not work well

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