Earth science is a field that includes geology, astronomy,
meteorology, and oceanography. Scientists do research in these fields to
discover past and future events. Learn about the dynamic field of earth science
and how it affects our lives in this lesson.
What Is Earth Science?
There are three main branches of science: life science,
physical science, and earth science. In each of these disciplines are
subcategories of specific areas or fields. Life science includes biology,
ecology, or environmental science. Physical science includes chemistry and
physics. Earth science, which is the topic of this course, includes many
branches, some of which we will cover in this lesson. We will discover what
geology is along with the related branches of meteorology and oceanography.
Earth Science Is More Than You Think
Earth science is a general term referring to any studies
that relate to the earth or neighboring planets in our solar system. The four
major fields in earth science include geology, the study of the earth's
structure; meteorology, the study of the weather and atmosphere; oceanography,
the study of the oceans; and astronomy, the study of the universe. There can be
even further specialization in these four fields because experts might hone in
on one specific aspect in a field, like volcanology, the study of volcanoes;
seismology, the study of earthquakes; or limnology, the study of freshwater.
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