Earth's Formation

Front

What happens to the density of a substance as it is heated?

Back

The density of a substance decreases as it is heated.

Front

Which layer of the Earth’s chemical layers is responsible for causing the magnetic field of the Earth?

Back

The outer core is responsible for causing the magnetic field of the Earth.

Front

In terms of thickness, which of the Earth’s layers is the largest?

Back

The mantle is the largest layer of the Earth in terms of thickness.

Front

What kind of waves do scientists use to determine the properties of Earth’s internal layers?

Back

Scientists use seismic waves to determine the properties of Earth’s internal layers.

Front

According to Nebular Theory, where do the materials that accumulate to make a planet come from?

Back

The materials come from dust and gas from newly created stars.

Front

What is the outer core primarily composed of?

Back

The outer core is primarily composed of liquid iron and nickel.

Front

What is the primary function of the Earth's crust?

Back

The Earth's crust serves as the outermost layer, providing a surface for landforms and supporting life.

Front

What is the difference between the inner core and outer core?

Back

The inner core is solid, while the outer core is liquid.

Front

What role do seismic waves play in understanding Earth's structure?

Back

Seismic waves help scientists infer the composition and state of Earth's internal layers.

Front

What is the significance of the mantle in Earth's structure?

Back

The mantle is significant as it is the thickest layer and plays a key role in tectonic activity.