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This unit takes us on a journey through the the rock record to learn how fossils document the history of life on Earth and how life on Earth has modified our planet.

The activities we have selected are congruent with the Next Generation Science Standards (NGSS), and are arranged to build upon one another.

C investigate how the formation of atmospheric oxygen and the ozone layer impacted the formation of the geosphere and biosphere 7 The student knows that scientific dating methods of fossils and rock sequences are used to construct a chronology of Earth's history expressed in the geologic time scale.

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B communicate and apply scientific information extracted from various sources such as current events, news reports, published journal articles, and marketing materials 3. C know that scientific theories are based on natural and physical phenomena and are capable of being tested by multiple independent researchers.

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