Earth Layers and Rock Cycle Review

Front

What is oceanic crust?

Back

Oceanic crust is mostly basalt and makes up the ocean floor.

Front

What are the characteristics of the mantle?

Back

The mantle consists of the asthenosphere and convection currents, and is the thickest layer of Earth.

Front

What type of rock is formed from cooled magma?

Back

Igneous Rock.

Front

How are sediments formed?

Back

Sediments are formed from weathered rocks and organic remains.

Front

What process forms Igneous Rock?

Back

Igneous Rock is formed by melting of rock and then cooling and hardening of magma.

Front

What is the Earth's outermost layer called?

Back

The Earth's outermost layer is called the crust.

Front

What is the difference between igneous and sedimentary rocks?

Back

Igneous rocks are formed from cooled magma, while sedimentary rocks are formed from weathered sediments.

Front

What is the role of the asthenosphere?

Back

The asthenosphere allows tectonic plates to move due to its semi-fluid nature.

Front

What is the rock cycle?

Back

The rock cycle is the continuous process of rock formation, breakdown, and reformation.

Front

What are metamorphic rocks?

Back

Metamorphic rocks are formed from existing rocks that have been changed by heat and pressure.