Everyday Science Academy

Earth System Science: The Planet Earth

 

Earth System Science 1

Prepared by: Maria Johanna Baguio Testa

Planet Earth 

  • Is the third planet away from the sun.
  • The surface of the planet is mainly covered in water.
  • It is a sphere (ball shaped).
  • It is the only planet that we know of that can support life.

The Axis

  • The axis is an imaginary line that runs through the center of the Earth.
  • The axis comes out of the top of  the Earth at the North Pole.
  • The axis comes out of the bottom of the Earth at the South Pole.
  • The axis is not upright. It is tilted at an angle of 23.5o
  • The tilted axis means that we get different seasons (summer, winter, autumn, spring) throughout the year.

The Equator

  • The equator is an imaginary line that runs around the middle of the Earth.
  • The equator divides the Earth into two halves:
  • The top is called the Northern Hemisphere because it contains the North Pole.
  • The bottom is called the Southern Hemisphere because it contains the South Pole.

*note: draw this into your notes

Earth Science

Earth science or geoscience includes all fields of natural science related to the planet Earth. This is a branch of science dealing with the physical and chemical constitution of the Earth and its atmosphere

Branches of Earth Science

  • Meteorology is the scientific study of the atmosphere that focuses on weather processes and forecasting. 

       Meteorological phenomena are observable weather events which illuminate and are explained by the science of meteorology.

  • Biology is the study of life

       The biosphere, also known as the ecosphere, is the worldwide sum of all ecosystems. It can also be termed the zone of life on Earth, a closed system, and         largely self-regulating.

  • Geology is an earth science concerned with the solid Earth, the rocks of which it is composed, and the processes by which they change over time. Geology can also include the study of the solid features of any terrestrial planet or natural satellite such as Mars or the Moon
  • Oceanography is the study of the physical, chemical, and biological features of the ocean, including the ocean's ancient history, its current condition, and its future.

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