Latitude, Longitude, Topographic Maps, Layers of the Earth Review

Thinnest layer of Earth made from rocks and minerals

Crust

Thicker than ocean crust, less dense, mostly granite rock

Continental Crust

Thinnest crust, denser than continental crust, mostly basalt rock

Oceanic Crust

Largest section of Earth's interior, mostly solid rock, composed of Oxygen and Silicon but also contain Magnesium

Mantle

Innermost layer of the Earth, most dense layer, composed mainly of Iron and Nickel

Core

All of the crust and upper portion of the mantle; very rigid and composed of tectonic plates

Lithosphere

Upper portion of the mantle below the lithosphere; weak and ductile, plates float on this layer

Asthenosphere

Liquid Iron and Nickel; responsible for generating the Earth's magnetic field as it rotates around the inner core

Outer Core

Solid Iron and Nickel; most dense layer of Earth, hottest layer of Earth, stays solid due to pressure

Inner Core

Name all of the compositional layers of Earth starting at the surface.

Crust, Mantle, Core

Name all of the mechanical layers of Earth starting at the surface.

Lithosphere, Asthenosphere, Mesosphere, Outer Core, Inner Core

Which direction do latitude lines measure?

North and South of the equator

Which direction do longitude lines measure?

East and West

Which direction do latitude lines run?

East and West

Which direction do longitude lines run?

North and South

When writing coordinates using latitude and longitude, which do you always write first?

latitude

What is zero degrees latitude called?

the equator

What is zero degrees longitude called?

prime meridian

What happens when you travel west across the international date line?

You gain a day

When contour lines are close together, would the slope be gentle or steep?

Steep

What direction does a V point on a topographic map when a stream crosses a contour line?

Upstream

What is the difference between a closed hilltop and a depression on a topographic map?

hilltop are closed circles and depressions have hashurs (tick marks)