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Shadow and Sundial Experiment Worksheet

Science experiments lesson 27: Shadows and a sundial · Set 868 · 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 sunny open place (b) a clock to check (c) a straight stick (d) turmeric powder
  2. 2.🔮 Predict: you move a torch closer to your hand. The shadow on the wall gets ___. (a) bigger (b) brighter (c) smaller (d) coloured
  3. 3.🧺 Do we need a magnet for the shadow clock? (a) needed (b) not needed
  4. 4.True or false: butter paper is transparent. (a) False (b) True
  5. 5.🌅 In the morning the Sun is in the east. Which way does a shadow point? (a) up (b) east (c) north (d) west
  6. 6.🔦 Which of these is translucent? (a) a steel plate (b) butter paper (c) air (d) a brick
  7. 7.⚖️ Fair test — how does the shadow of a stick change through the day? Which of these is the one thing we change? (a) shadow length (b) the stick kept upright (c) the time of day (d) the same stick
  8. 8.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a clock to check (b) a straight stick (c) a sunny open place (d) a magnet
  9. 9.🛟 While watching shadows outdoors, what must you never do? (a) sit in the shade (b) look straight at the Sun (c) mark with chalk (d) wear a cap
  10. 10.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) chalk to mark shadows (b) a straight stick (c) a clock to check (d) a balloon
  11. 11.True or false: a sunny open place is needed for the shadow clock. (a) False (b) True
  12. 12.True or false: a brick is translucent. (a) True (b) False
  13. 13.True or false: a wooden board is transparent. (a) True (b) False
  14. 14.True or false: a brick is opaque. (a) True (b) False
  15. 15.⚖️ 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
  16. 16.🔍 Which is the odd one out? (a) your hand (b) clean water (c) air (d) clear plastic film
  17. 17.True or false: a straight stick is not needed for the shadow clock. (a) True (b) False
  18. 18.🔦 Which of these is opaque? (a) your hand (b) air (c) frosted glass (d) clear plastic film
  19. 19.True or false: a battery cell is needed for the shadow clock. (a) True (b) False
  20. 20.True or false: oily paper is transparent. (a) False (b) True
  21. 21.🛟 What should you wear for a long time in the hot sun? (a) a woollen sweater (b) a cap or hat (c) nothing on your head (d) a raincoat
  22. 22.🧺 Which of these is needed for the shadow clock? (a) turmeric powder (b) a battery cell (c) a clock to check (d) yeast
  23. 23.📘 Why does a shadow form? (a) light bends round it (b) an object blocks light (c) the ground is dark (d) the object is cold
  24. 24.🔦 Is a steel plate opaque, translucent or transparent? (a) transparent (b) translucent (c) opaque
  25. 25.🧺 Which of these is not needed for the shadow clock? (a) a sunny open place (b) chalk to mark shadows (c) a clock to check (d) a battery cell
  26. 26.🔦 Is a wooden board opaque, translucent or transparent? (a) opaque (b) translucent (c) transparent
  27. 27.True or false: turmeric powder is needed for the shadow clock. (a) False (b) True
  28. 28.🔮 Predict: the Sun is low in the evening sky. The stick’s shadow is ___. (a) short (b) long (c) round (d) missing
  29. 29.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: shadow length is kept the same. (a) False (b) True
  30. 30.🔍 Which is the odd one out? (a) oily paper (b) clean water (c) air (d) clear glass
  31. 31.True or false: yeast is needed for the shadow clock. (a) False (b) True
  32. 32.🌍 Why does the stick’s shadow move during the day? (a) Earth keeps spinning (b) the ground slides (c) the stick walks (d) the stick grows
  33. 33.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: shadow length is what we measure. (a) True (b) False
  34. 34.True or false: a straight stick is needed for the shadow clock. (a) False (b) True
  35. 35.True or false: a brick is transparent. (a) False (b) True
  36. 36.🔦 Is oily paper opaque, translucent or transparent? (a) opaque (b) translucent (c) transparent
  37. 37.🧺 Do we need a battery cell for the shadow clock? (a) not needed (b) needed
  38. 38.True or false: a book is transparent. (a) True (b) False
  39. 39.True or false: a sunny open place is not needed for the shadow clock. (a) False (b) True
  40. 40.🧺 Do we need chalk to mark shadows for the shadow clock? (a) needed (b) not needed

Answer key

  1. turmeric powder
  2. bigger
  3. not needed
  4. False
  5. west
  6. butter paper
  7. the time of day
  8. a magnet
  9. look straight at the Sun
  10. a balloon
  11. True
  12. False
  13. False
  14. True
  15. False
  16. your hand
  17. False
  18. your hand
  19. False
  20. False
  21. a cap or hat
  22. a clock to check
  23. an object blocks light
  24. opaque
  25. a battery cell
  26. opaque
  27. False
  28. long
  29. False
  30. oily paper
  31. False
  32. Earth keeps spinning
  33. True
  34. True
  35. False
  36. translucent
  37. not needed
  38. False
  39. False
  40. needed

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