Earth as a System

Earth as a System Earth as a System - Start

2017-04-15 326K 326 0 0

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What is Earth Science?. What are the Earth System’s four Spheres?. What are cycles and how do they work?. System. : A kind of model often used to describe the natural world.. Closed System. : ENERGY enters and may leave, but MATTER does not leave. ID: 537721 Download Presentation

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Earth as a System




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Slide1

Earth as a System

What is Earth Science?

What are the Earth System’s four Spheres?

What are cycles and how do they work?

Slide2

System: A kind of model often used to describe the natural world.Closed System: ENERGY enters and may leave, but MATTER does not leaveOpen System: ENERGY and MATTER are free to enter and leave

Is the Earth an Open or Closed System?

Slide3

Earth is considered closed, there are a few exceptions: hydrogen escapes & meterorites enter.

Slide4

VolcanoEnergy is released, matter released as lavaLight bulbElectrical Energy enters, light is releasedTreeSunlight, water, & Carbon Dioxide in, water and oxygen released, seeds and leaves drop to groundOceanSunlight enters, water enters through runoff and precipitation, water leaves through evaporationBoiling WaterHeat enters, heat and vapors are released

OPEN or CLOSED?

Slide5

PopulationResourcesImpactScience helps educate us and find solutions!!!

Humans and the planet Earth

Slide6

Slide7

Atmosphere: gaseous envelope surrounding the Earth. Provides Oxygen & Carbon Dioxide, also absorbs and blocks harmful radiation. Where all weather occurs.Geosphere: all physical features of the Earth (except water) such as rocks, mineral resources, metals, mountains, beaches, and lithospheric plates.Hydrosphere: Includes all of Earth’s water including oceans, rivers, lakes, and groundwater, it is continually recycled. 97% salt water, 3% fresh water, 1% usable.Biosphere: All living thingsDiscuss interactions among the Spheres

The Earth System’s four Spheres

Slide8

Identify the 4 Spheres

Slide9

Slide10

Carbon Cycle

Slide11

Carbon in our Earth

Slide12

The movement of Energy into and out of the Earth SystemA.K.A. The Energy BudgetBalance is the Key: equal energy in and out

The Energy Cycle

Slide13

Solar Energy

99.985%

of total energy

It comes from nuclear reactions in the sun

Drives

winds

, ocean currents, waves, and

weather

.

Slide14

Geo means EarthThermal means Heat0.013% Drives the movement of Earth’s crust, Volcanoes, Earthquakes, and GeysersImportant role in the Rock Cycle

Geothermal Energy

Slide15

0.002% of the energy budgetResults from the moon’s pull on the Earth’s oceansPowerful enough to slow down the Earth

Tidal Energy


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