SSA 7th Earth Science

Front

What is the process by which water, ice, wind, and gravity remove and transport sediment from one place to another?

Back

Erosion

Front

What occurs when rock particles or sediments are pressed together or packed down by gravity and the pressure of overlying rock layers?

Back

Compaction

Front

What type of boundary is formed when tectonic plates collide?

Back

Convergent boundary

Front

What is the term for the layers of rock that make up the Earth's crust?

Back

Strata

Front

What is the age range of the rock layers that make up the Grand Canyon?

Back

2 billion to 230 million years

Front

What do scientists need to compare the ages of rocks from different parts of the Grand Canyon?

Back

The radioactive elements in each rock

Front

Which rock layer in a diagram is typically the oldest?

Back

The bottom layer (Layer A) is usually the oldest.

Front

What is the term for the process of forming sedimentary rocks from sediments?

Back

Lithification

Front

What is the main driving force behind plate tectonics?

Back

Convection currents in the Earth's mantle

Front

What is the term for the theory that explains the movement of the Earth's plates?

Back

Plate tectonic theory