Bill Nye: Earth's Crust

Front

What is the crust of the Earth?

Back

The crust is the outermost layer of the Earth, which is the coolest layer.

Front

What is magma?

Back

Magma is molten rock beneath the Earth's surface that is extremely hot.

Front

Which layer of the Earth is the thinnest?

Back

The crust is the thinnest layer of the Earth.

Front

What is heat resistant glass?

Back

Heat resistant glass is glass that can withstand high temperatures without melting.

Front

What is lava?

Back

Lava is magma that has reached the Earth's surface and is pushed out of a volcano by gas buildup.

Front

What are the main layers of the Earth?

Back

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

Front

How does magma become lava?

Back

Magma becomes lava when it erupts from a volcano and flows onto the Earth's surface.

Front

What is the difference between magma and lava?

Back

Magma is found beneath the Earth's surface, while lava is magma that has erupted onto the surface.

Front

What causes volcanic eruptions?

Back

Volcanic eruptions are caused by the buildup of gas and pressure in magma beneath the Earth's crust.

Front

What is the composition of the Earth's crust?

Back

The Earth's crust is primarily composed of rocks and minerals, including silicates.