Layers of the Earth and Heat Transfer Practice

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 as hot or hotter than the surface of the sun.

Front

What happens to temperature as you go deeper into the Earth?

Back

Temperature increases as you go from the crust to the inner core.

Front

What is the composition of the Earth's crust?

Back

The Earth's crust is made of igneous, sedimentary, and metamorphic rocks.

Front

What is the most common rock found in the continental crust?

Back

Granite is the most common rock in the continental crust.

Front

What is density?

Back

Density is the mass of an object divided by its volume, often expressed in grams per cubic centimeter (g/cm³).

Front

What will happen to sodium when placed in water?

Back

Sodium will float in water because its density (0.97 g/cm³) is less than that of water (1 g/cm³).

Front

What are the three main layers of the Earth?

Back

The three main layers of the Earth are the crust, mantle, and core.

Front

What is the mantle?

Back

The mantle is the layer of the Earth located between the crust and the outer core, composed of semi-solid rock that flows slowly.

Front

What is the outer core?

Back

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

Front

What is the difference between igneous, sedimentary, and metamorphic rocks?

Back

Igneous rocks form from cooled magma or lava, sedimentary rocks form from compressed sediments, and metamorphic rocks form from existing rocks that are changed by heat and pressure.