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Shadow and Sundial Experiment Worksheet

Science experiments lesson 27: Shadows and a sundial · Set 249 · 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 sunny open place (c) chalk to mark shadows (d) a mirror
  2. 2.🧺 Do we need a battery cell for the shadow clock? (a) not needed (b) needed
  3. 3.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a clock to check (b) yeast (c) a sunny open place (d) a straight stick
  4. 4.🛟 While watching shadows outdoors, what must you never do? (a) look straight at the Sun (b) sit in the shade (c) wear a cap (d) mark with chalk
  5. 5.🧺 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 balloon (d) a sunny open place
  6. 6.🔦 Which of these is opaque? (a) butter paper (b) tissue paper (c) a wooden board (d) clear plastic film
  7. 7.True or false: chalk to mark shadows is needed for the shadow clock. (a) True (b) False
  8. 8.🔮 Predict: you move a torch closer to your hand. The shadow on the wall gets ___. (a) coloured (b) bigger (c) smaller (d) brighter
  9. 9.🔮 Predict: the Sun is low in the evening sky. The stick’s shadow is ___. (a) missing (b) round (c) long (d) short
  10. 10.🔍 Which is the odd one out? (a) oily paper (b) a brick (c) butter paper (d) tissue paper
  11. 11.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a sunny open place (b) turmeric powder (c) a clock to check (d) chalk to mark shadows
  12. 12.🧺 Do we need a mirror for the shadow clock? (a) needed (b) not needed
  13. 13.🔍 Which is the odd one out? (a) a wooden board (b) your hand (c) a book (d) air
  14. 14.🔍 Which is the odd one out? (a) clear glass (b) butter paper (c) oily paper (d) frosted glass
  15. 15.🔦 Is frosted glass opaque, translucent or transparent? (a) translucent (b) transparent (c) opaque
  16. 16.🔦 Is a brick opaque, translucent or transparent? (a) translucent (b) transparent (c) opaque
  17. 17.🧺 Do we need a magnet 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) True (b) False
  19. 19.⚖️ Fair test — how does the shadow of a stick change through the day? What do we do with “the stick kept upright”? (a) we measure it (b) we keep it the same (c) we change it
  20. 20.True or false: a book is opaque. (a) True (b) False
  21. 21.⚖️ Fair test — how does the shadow of a stick change through the day? What do we do with “the time of day”? (a) we keep it the same (b) we change it (c) we measure it
  22. 22.🛟 What should you wear for a long time in the hot sun? (a) nothing on your head (b) a raincoat (c) a cap or hat (d) a woollen sweater
  23. 23.🔦 Which of these is opaque? (a) air (b) your hand (c) oily paper (d) clear plastic film
  24. 24.True or false: turmeric powder is not needed for the shadow clock. (a) True (b) False
  25. 25.🧺 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 magnet (d) chalk to mark shadows
  26. 26.🧺 Which of these is not needed for the shadow clock? (a) chalk to mark shadows (b) a clock to check (c) a sunny open place (d) a magnet
  27. 27.True or false: clean water is opaque. (a) False (b) True
  28. 28.🔦 Which of these is transparent? (a) butter paper (b) oily paper (c) tissue paper (d) clear plastic film
  29. 29.🔦 Is butter paper opaque, translucent or transparent? (a) transparent (b) opaque (c) translucent
  30. 30.🔦 Is your hand opaque, translucent or transparent? (a) opaque (b) translucent (c) transparent
  31. 31.⚖️ Fair test — how does the shadow of a stick change through the day? Which of these is kept the same? (a) the stick kept upright (b) shadow length (c) the time of day
  32. 32.True or false: a straight stick is needed for the shadow clock. (a) False (b) True
  33. 33.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the same stick is what we measure. (a) True (b) False
  34. 34.🧺 Which of these is needed for the shadow clock? (a) a balloon (b) turmeric powder (c) a straight stick (d) yeast
  35. 35.True or false: a brick is transparent. (a) False (b) True
  36. 36.⚖️ Fair test — how does the shadow of a stick change through the day? What do we do with “the same stick”? (a) we change it (b) we keep it the same (c) we measure it
  37. 37.🧺 Do we need yeast for the shadow clock? (a) needed (b) not needed
  38. 38.🌅 In the morning the Sun is in the east. Which way does a shadow point? (a) up (b) west (c) north (d) east
  39. 39.🔍 Which is the odd one out? (a) clean water (b) clear glass (c) clear plastic film (d) your hand
  40. 40.⚖️ 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) False (b) True

Answer key

  1. a mirror
  2. not needed
  3. yeast
  4. look straight at the Sun
  5. a balloon
  6. a wooden board
  7. True
  8. bigger
  9. long
  10. a brick
  11. turmeric powder
  12. not needed
  13. air
  14. clear glass
  15. translucent
  16. opaque
  17. not needed
  18. True
  19. we keep it the same
  20. True
  21. we change it
  22. a cap or hat
  23. your hand
  24. True
  25. a magnet
  26. a magnet
  27. False
  28. clear plastic film
  29. translucent
  30. opaque
  31. the stick kept upright
  32. True
  33. False
  34. a straight stick
  35. False
  36. we keep it the same
  37. not needed
  38. west
  39. your hand
  40. True

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