Geology: History of the Earth

Front

What is weathering?

Back

The breaking down of rocks and minerals into smaller pieces.

Front

What process breaks rocks?

Back

Weathering.

Front

What causes the movement of tectonic plates?

Back

Convection currents in the Asthenosphere.

Front

What is a delta?

Back

A landform made of sediment deposited where a river flows into an ocean or lake.

Front

What is a convergent boundary?

Back

The place where two tectonic plates come together.

Front

What is sediment?

Back

Small particles of rock and mineral that are transported by wind, water, or ice.

Front

What is the Asthenosphere?

Back

A semi-fluid layer of the Earth's mantle that allows tectonic plates to move.

Front

What is a transform boundary?

Back

A tectonic plate boundary where two plates slide past each other.

Front

What is a divergent boundary?

Back

A tectonic plate boundary where two plates move away from each other.

Front

What are fossils?

Back

Remains or traces of ancient organisms preserved in rock.