Earth tiu & tiamson
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The document provides information about planet Earth. It discusses that Earth is the third planet from the sun, the largest of the inner planets, and is known by names like the Blue Planet. It formed 4.6 billion years ago from a solar nebula and molten material that collided to form the planet. Early Earth had extreme conditions that changed over time as the atmosphere stabilized and continents formed, allowing life to emerge in the oceans. The document details Earth's structure, composition, atmosphere, seasons, and key facts about its orbit, rotation, and relationship to the moon.
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Earth tiu & tiamson
- 1. Planet EARTH
- 4. 5th largest planet in the Solar System.
- 6. Known as: Blue Planet World Planet Earth Blue Marble
- 13. Tidal Theory Planetisimal Theory Dynamic Encounter Theory Condensation Theory Big Bang Theory
- 14. Big Bang Theory •The Universe originated in an enormous explosion. •Our universe came into existence because of a SOLAR NEBULA.
- 15. SOLAR NEBULA A huge spinning cloud made up of dust particles and various types of hot gases.
- 16. Solar Nebula began its contraction about 4.6 billion years ago probably because of shock wave caused by an explosion in the nearby region. During the contraction process, its temperature came down and it began to rotate very fast. As a result of cooling, shrinking and faster rotation the gas cloud began to collapsed.
- 17. The outer part of the gas cloud detached from the main body thus, creating our solar system. The dense cloud heated up and pulled toward the center to form the Sun. Other particles within the cloud collided and stuck together to form ever-larger bodies including the Earth.
- 22. HADEAN Period • Hadean derived from “Hades”. •1st billion years of Earth’s Formation. •“Hellish Period” •Remnants of the dust and debris. •Atmosphere: •Couldn’t settle to form surface water. •Poisonous for living organisms.
- 24. ARCHEAN Period • Earth’s surface began to cool down and stabilize. •Solid surface and water. •Period where 1st life began to appear. •Landmasses began to form.
- 25. PROTEROZOIC Period • larger continental landmasses continued to form by the accretion of the smaller ones. •Free oxygen
- 26. -Evident Life
- 28. PALEOZOIC Period • animals and plants in the seas and land.
- 30. CENOZOI C Period • Age of mammals. •Period we are in.
- 33. •Cluster - groups of galaxies held together by mutual gravitational attraction •Supercluster - Large groups of smaller galaxy groups and clusters
- 37. MASS •5.9736 x 1024 Kg •5,973,600,000,000,000,000,000,000 kg
- 39. Chemical Composition 34.6 % Fe 29.5 % O 15.2 % Si 12.7 % Mg 1.9 % S 0.05 % Ti others
- 40. Inner Structure •CRUST -Earth’s outermost and thinnest layer. -5 km thick(Ocean); 30 km thick(Continents). •MANTLE - Hot, semisolid rock, located directly below the Crust. - 2900 km thick •CORE Outer Core- liquid layer Inner Core – solid layer
- 42. Earth’s Atmosphere Atmosphere is very important to life on Earth and does many things to help protect life: •Big blanket of Insulation •Keeps the overall temperature of the Earth fairly steady. •Absorbs Sun’s radiation.
- 43. Earth’s atmosphere is divide into 5 major layers
- 44. TR P SO PO HERE •Lowest layer of Earth’s atmosphere •Layer next to the ground •30,000- 50,000 ft.high. •The layer where we live and even where planes fly. •Almost all weather occurs within this layer
- 46. ST A OT SR HERE •Layer that gets its heat by the ozone layer absorbing the radiation from the Sun. •160,000 ft.high. • second layer P
- 48. MESOS HERE •Layer where most meteors burn up upon entry. •Coldest place in the Earth’s atmosphere •Weather Balloons and jet planes cannot fly high enough to reach this layer P •164,040 ft
- 50. TH R OM SE HEREP •Space shuttle and international space station orbits here •The air here is very thin •Extends 90 km to 50-100 km above our planet
- 52. E OX S HEREP •Outermost layer of the Earth •Last and thinnest layer •Its density is so low that particles collide rarely, making it possible for energetic particles to escape Earth’s gravity.
- 55. Earth’s surface is covered with water having an area of 361,800,00 sq.km (70 %) and 148,300,000 sq.km (30%) land taken up by the 7 continental landmasses.
- 56. Did you know that… 250 million years ago , most of the land was connected in one large landmass collectively known as supercontinent called “PANGAEA”- “all lands”.
- 57. PANGAEA •Covers 1/3 of the Earth’s surface. •The term began being used in the early 20th century after Alfred Wegener noticed that the Earth’s continents looked like they fit together like a jigsaw puzzle.
- 59. Break-Up
- 60. before after
- 62. The reason for the SEASONS 1. The Earth is tilted. - as it makes its yearly journey around the Sun. 2. The Earth’s tilt. - The Earth’s axis is tilted at an angle of 23.5 degrees.
- 66. In astronomy, a satellite is a natural body that revolves around a planet and is also called MOON.
- 67. In Aerospace and Space Exploration, a satellite is a man-made object launched into space to orbit the Earth, moon and other celestial bodies.
- 68. Most important satellites orbiting Earth now Hubble Space Telescope Galaxy 14 GOES-12 The Moon KH-13 GPS IIR11 International Space Station NOOAA 17 LANDSAT 7
- 70. Moon GOES-12
- 71. KH-13 GPS IIR11
- 72. ISS NOAA-17
- 73. LAND SAT 7
- 75. The reason for the SEASONS Rotation an Axis - 24 hours - 23 hours & 56 minutes and 04.09053 seconds Revolution around the Sun -365 days -365.2425 days
- 78. Earth’s Circumference at the Equator - 40,075.16 km Earth’s diameter at the Equator -12,756.1 km Average distance from the Earth to the Sun - 149,669,180 km Average distance from the Earth to the Moon - 384,403.1 km
- 80. Life Water Geologically Active Size
- 81. TRIVIA • Earth’s Population: - 7,039,191,305
- 82. • Earth’s Highest & Lowest Point: - Mt.Everest - Marianas Trench
- 83. • Earth’s coldest part: -Antarctica
- 85. • Earth’s age: - 4.6 Billion years old
- 87. GLOBAL WARMING
- 93. END Reported by: Sharmaine Tiu Gabrielle Tiamson BEED IV