Unit 2 Earth Science

Front

What is the inner core of the Earth?

Back

The inner core is the innermost layer of the Earth, composed primarily of iron and nickel, and is solid due to the immense pressure.

Front

What are the sources of Earth's internal heat?

Back

Earth's internal heat comes from radioactive decay and residual heat from its formation.

Front

What is a dependent variable in an experiment?

Back

A dependent variable is the variable that is observed and measured in an experiment, which changes in response to the independent variable.

Front

What is an independent variable in an experiment?

Back

An independent variable is the variable that is changed or controlled in an experiment to test its effects on the dependent variable.

Front

What is the asthenosphere?

Back

The asthenosphere is a semi-fluid layer of the Earth's mantle located below the lithosphere, allowing for the movement of tectonic plates.

Front

What is the lithosphere?

Back

The lithosphere is the rigid outer layer of the Earth, consisting of the crust and the uppermost part of the mantle.

Front

What is the mantle?

Back

The mantle is the thick layer of the Earth located between the crust and the outer core, composed of silicate rocks that can flow slowly.

Front

What is the outer core?

Back

The outer core is the liquid layer of the Earth's core, composed mainly of iron and nickel, and is responsible for generating Earth's magnetic field.

Front

What is geothermal heat?

Back

Geothermal heat is the heat that comes from the Earth's interior, which can be used for heating and electricity generation.

Front

What is seismic activity?

Back

Seismic activity refers to the frequency and intensity of earthquakes and other ground-shaking phenomena caused by the movement of tectonic plates.