aim: how do we compare the spheres of the earth? do now: earth’s sphere’s worksheet
TRANSCRIPT
Aim: How do we compare the spheres of the Earth?
Do Now: Earth’s Sphere’s Worksheet
How do we describe the lithosphere?
Lithosphere
Solid Layer
Most dense
Composed of Rock and Soil
Oxygen and Silicon – 2 most abundant elements
Thickness from 72 to 153 kilometers
Has other elements – aluminum, iron, calcium,
sodium
Solid rock material under ocean
sediments
Continuous bedrock shell around the earth
Known as the Crust
How do we describe the hydrosphere?
Hydrosphere
Liquid Layer
Oceans, lakes, rivers, streams, & groundwater
Oceans average depth of 3-5 km
Cover’s 70% of Earth’s surface
Less dense than the lithosphere
Earth’s thinnest layer
Water composed of 33% oxygen and 66%
hydrogen
99% salt water & 1% fresh water
How do we describe the Atmosphere?
Atmosphere (Troposphere)
Gas Layer
Least dense of all the spheres
Consists of 4 layers – troposphere, stratosphere,
mesosphere, and thermosphere
We live in the troposphere layer (lowest layer)
Troposphere - only layer that contains water vapor and weather
conditions
Air mixture consists of 78% Nitrogen and 21%
Oxygen
Troposphere- temperature decreases with increasing
altitude
Troposphere contains the most mass of the
atmosphere
High
Density
Low
Litho Hydro Atmosphere
Draw a bar graph to show the relationship between the density of each of sphere