Washington A State of Contrasts Chapter 1, Part 1

Chapter 1: Geological History Day 1

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Centralia Virtual - Washington State History

Washington:

A State of Contrast

Geology is the natural processes and history of the Earth. Scientists who study geology are referred to as geologists. They have spent centuries studying the rocks, landforms, landscapes, and soils, and natural disasters of the Earth.

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Geologic Processes

Multiple Choice

The study of the natural processes and history of the Earth is called..

• Geometry

• Rockology

• Geology

• Gemology

​This is the idea used by geologists to describe how land and landforms such as mountains, hills, plateaus, and others. Geologists divide the Earth into 4 major layers.

Plate Tectonics

• Mantle

• Molten Magma

• Outer Core

• Inner Core

​Tectonic plates are much like pieces of a puzzle. They fit together and form a picture. The are made of solid rock and sometimes get hot enough to melt.

Tectonic Plates

Multiple Choice

Which of the following is NOT one of the four layers of the Earth?

• Inner-Core

• Middle-Core

• Outter-Core

• Mantle

Not the largest landmass as it began just east of Spokane and ran north to the Canadian border.

The Kootenay Arc

Today's North Central Washington. It starts from the western edge of the Kootenay Arc to the east slopes of Cascade Mountains.

Okanogan Sub-Continent

Formed during a time when Washington State was still underwater. Over millions of years ago, the mountains were islands.

​​Blue Mountains

The area that stretched out all the way south to present day Wenatchee. It also reaches as far as the San Juan Islands.

Northern Cascades Sub-Continent

Mesozoic Era

Fill in the Blanks

63 Million years ago and continues to today. At the start of the era, Washington was still really different. This era will bring a lot of developments to Southern Washington. Early winds carried sand, silt, and soil from the south and deposited onto the hills that created the Columbian Plateau..

Cenezoic Era

Stretching from British Columbia into Northern California, the Cascade Volcanoes are among the most active. From Mt. St. Halens to Mount Rainier, we are surrounded by active giants! Mr. Finberg has a video for us to watch tomorrow!

The Cascade Volcanoes

Multiple Choice

How far south does the Cascade Volcanoes reach?

• Oregon

• California

• Nevada

• Hawaii

Open Ended

Last question! Tell me about 1 thing you've learned from these slides?

Draw

Draw a volcano during it's eruption state.