Layers of Earth - Grade 6

Front

What is the lithosphere?

Back

The lithosphere is the solid, rocky surface of Earth, including the ocean beds.

Front

What are the three realms of Earth?

Back

The three realms of Earth are the atmosphere, hydrosphere, and lithosphere.

Front

What is the biosphere?

Back

The biosphere is the part of Earth that contains all of the ecosystems.

Front

What are the main types of rocks found in the crust?

Back

The main types of rocks are igneous, sedimentary, and metamorphic.

Front

What is igneous rock?

Back

Igneous rock is formed from magma, hot liquid rock from within Earth.

Front

What is sedimentary rock?

Back

Sedimentary rock is formed from the layering of sediment over long periods of time.

Front

What is metamorphic rock?

Back

Metamorphic rock refers to igneous and sedimentary rock that has been transformed by high temperatures and pressures.

Front

What are tectonic plates?

Back

Tectonic plates are large, slowly moving pieces of rock that make up the Earth's crust.

Front

What is the theory of plate tectonics?

Back

The theory of plate tectonics states that the Earth's crust is made up of large plates that move around on the lower layers.

Front

What is the outer layer of Earth called?

Back

The outer layer of Earth is called the crust.