Earth Science Review

Soil

100

What are the three soil particles?

Clay, Sand, Slit

200

Where do we find the most organic material?

Horizon O or A

300

What are the layers of a soil profile called?

Horizons

400

What is the composition of soil (pie chart)?

45%- Soil Particles, 5% Humus, 25% Air, 25% Water

500

What are the 6 factors that affect soil formation?

Parent Matieral, Climate, Organic Material, Vegetation, Topography, Time

Weathering

100

Root Pry is a type of what kind of weather?

Mechanical

200

Give an example of chemical weathering

Oxidation, Plant Acids, Carbonation, Hydration

300

Natural break down of rocks & minerals is called

Weathering

400

This is the type of weather that changes the compostion of the rock as it break it down into small parts

Chemcial

500

The type of weathering that breaks the rocks down in size ONLY. 

Mechanical 

Glaciers

100

What is a Glacier?

large mass of ice that moves over land

200

The movement of a glacier will ________ the land beneath it

erode/gouge 

300

The type of glacier that is long & narrow, forms when snow & ice build up high in a mouation valley

Valley Glacier

400

Type of glacier that covers much of a continent or large island

Contenental 

500

How do Glaciers form? 

• Glaciers are formed in areas where more snow falls than melts. 

• High in mountain valleys where temperatures seldom rise above freezing

• Snow builds up year after year

• Pressure of snow layers above squeezes the layers below

• The snow compacts and forms ice

Oceans

100

What percent of earth's water is found in oceans? 

97%

200

Which elements are the most abundant in oceans? (Besides hydrogen & oxygen)

Sodium & Chlorine (NaCl- Salt)

300

What is salinity?

How much salt is dissolved

400

What is the relationship between density & temperature?

As temp increases, the density decreases, if the temp decreses than denisty increases

500

What is the relationship between density & salinity

They are directly related, the higher the salinty the higher the density. The lower the salinty the lower the density

Water Cycle

100

Where is the majority of the water on earth located?

Oceans

200

This is when water vaopr turns back into a liquid and forms clouds

Condensation

300

This is when the sun heats up the water on earth surfaces and turns to vapor

Evaporation

400

This happens when the water in clouds becomes too heavy and falls to the earth surface

Precipation

500

What are the three things that can happen when water hits the ground

Run off, Soak in, evaporate