Unit 2 Earth Science

Front

Define outer core

Back

Liquid layer of the Earth's core. Convection currents happen here, and produce the magnetic field.

Front

Define Convergent Boundary (Continent-Continent)

Back

When two continental plates collide, they create mountain ranges because the plates are the same density.

Front

Which layer of the Earth is the most heavy (dense)?

Back

Core

Front

Define a transform boundary

Back

A type of plate boundary where two tectonic plates slide past each other horizontally, creating Earthquakes.

Front

Define asthenosphere

Back

Semi-fluid layer of the Earth's mantle beneath the lithosphere and above the mesosphere.

Front

What is the lithosphere?

Back

The rigid outer layer of the Earth, consisting of the crust and upper mantle.

Front

What happens at divergent boundaries?

Back

Two tectonic plates move away from each other, creating new crust as magma rises to the surface.

Front

What is the mantle?

Back

The thick layer of rock between the Earth's crust and core, composed of silicate minerals.

Front

What is the significance of the Earth's magnetic field?

Back

It protects the Earth from solar wind and cosmic radiation.

Front

What are tectonic plates?

Back

Large slabs of the Earth's lithosphere that move and interact at their boundaries.