EARTH SCIENCE - Earth’s Subsystem

Earth

• 3rd planet from the solar system

• The only planet to harbor life

Closed System

“Something gets what it wants but neither it returns it back”

Cycles

• Major themes in the Earth’s subsystems

• Process where the materials in Earth’s system was continuously recycled

Atmosphere, Hydrosphere, Geosphere, Biosphere

Earth’s Subsystems

Atmosphere

Set of layers of gases that surrounds or protects the planet that is held by the Planet’s gravity

78%

Atmosphere of Earth’s composition:

Nitrogen

28.95%

Atmosphere of Earth’s composition:

Oxygen

0.93%

Atmosphere of Earth’s composition:

Argon

0.04%

Atmosphere of Earth’s composition:

Other Gases

Troposphere

Layers of Atmosphere:

Where we live

Stratosphere

Layers of Atmosphere:

Contains the ozone layer

Mesosphere

Layers of Atmosphere:

Where meteors burn

Thermosphere

Layers of Atmosphere:

Where satellites orbit Earth

Atmospheric Cycle

A way of redistributing the heat from the sun to the surface of the Earth

Hydrosphere

Liquid component of the Earth

Water Cycle

Explains the continuous movement of the water, above or below the Earth’s surface

Evaporation, Transpiration, Condensation, Precipitation, Infiltration

PROCESS OF WATER CYCLE

Evaporation

The sun will heat the water and it will become water vapor

Transpiration

Water movement that is typically happening in plants

Condensation

Evaporated water vapor cooled down to its dew point; when the clouds are formed

Precipitation

Water is released from the condensed clouds

Rain

Liquid water droplets that is responsible for bringing of fresh water into the earth

Snow

Solid type of precipitation that has a temperature of below 0°

Hail

Small irregular lumps or balls of ice about the size of 5mm to 15cm

Infiltration

Precipitation is absorbed by the soil and moves into the rocks

Geosphere

Solid state of Earth

Lithosphere

Part of geosphere that is composed of the solid, outermost part of the planet

Tectonic Plates

Rocky parts of the lithosphere that are divided into numerous plates due to the drifting of the plates as time goes by