Chapter 2 Test: Earth Systems and Density Concepts

Front

What is the geosphere?

Back

The geosphere is the solid part of Earth, including the crust, mantle, and core.

Front

What does the hydrosphere include?

Back

The hydrosphere includes all of Earth's water, such as oceans, rivers, lakes, and glaciers.

Front

Which layer of Earth is responsible for its magnetic field?

Back

The outer core is responsible for Earth's magnetic field.

Front

What happens to soil density as you dig deeper into the ground?

Back

Soil density increases as you dig deeper.

Front

When did our solar system form?

Back

Scientists believe our solar system formed about 4.6 billion years ago.

Front

What is the biosphere?

Back

The biosphere is the part of Earth where life exists, including land, water, and the atmosphere.

Front

What is the atmosphere?

Back

The atmosphere is the layer of gases surrounding Earth, essential for weather and life.

Front

Define density in the context of Earth materials.

Back

Density is the mass of a substance divided by its volume, indicating how compact the material is.

Front

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

Back

The inner core is solid and composed mainly of iron and nickel, while the outer core is liquid and also made of iron and nickel.

Front

What role does the mantle play in Earth's structure?

Back

The mantle is the thick layer of rock between the crust and the outer core, involved in tectonic activity.