Ch. 2 Lesson 2 Quiz Review

What two things increase as you go deeper into the Earth?

• temperature and density

• temperature and pressure

• density and elevation

• pressure and elevation

How do scientists learn about Earth's interior without drilling all the way to the center?

• by sending robots to the core

• by studying how earthquake waves travel through Earth

• by observing volcanic eruptions

• by analyzing rocks from the surface

What is the brittle, rocky outer layer of Earth called?

• the mantle

• the lithosphere

• the core

• the crust

Which type of crust is found under oceans and is thinner and more dense?

• tectonic crust

• oceanic crust

• mantle crust

• continental crust

The rigid layer of Earth made up of the crust and the uppermost Mantle is called the ______________.

• asthenosphere

• crust

• core

• lithosphere

Which layer of the Earth is a plastic, or flowing, layer of rock?

• the asthenosphere

• the outer core

• the lithosphere

• the mantle

The Earth's core is the dense, metallic center made mostly of what two elements?

• iron and nickel

• oxygen and silicon

• carbon and iron

• iron and aluminum

8. Which part of the core is liquid?

• the entire core is solid

• the outer core

• the entire core is liquid

• the inner core

How do scientists know that the outer core is liquid?

• by analyzing samples from deep mines

• by studying what happens to earthquake waves when they enter it

• by using radar to scan the Earth's interior

• by studying the flow of magma from volcanoes

What creates Earth's magnetic field?

• the heat from the mantle

• the rotation of the inner core and outer core

• the gravitational pull of the Sun and Moon

• the movement of tectonic plates in the crust