1 / 7

Earth’s Structure

Earth’s Structure. The egg that you live on. Parts of the earth. Hydrosphere- water makes up about 70% of the earth’s surface. Lithosphere- the earth’s rocky, outermost layer. Parts of the Earth. Atmosphere- the layer of gases surrounding the earth.

makan
Download Presentation

Earth’s Structure

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Earth’s Structure The egg that you live on

  2. Parts of the earth • Hydrosphere- water makes up about 70% of the earth’s surface. • Lithosphere- the earth’s rocky, outermost layer.

  3. Parts of the Earth • Atmosphere- the layer of gases surrounding the earth. • Biosphere- the area on or near the earth’s surface that supports plant & animal life.

  4. Earth’s Structure • Core- mostly iron & nickel. • Mantle- a layer of semi-solid rock around the core; 1800 miles thick. • Crust- thin, rocky surface layer; 4 to 45 miles thick.

  5. Convection Currents • The heating & cooling of the mantle that causes the crust to move. • Internal force responsible for building new landforms.

  6. Plate Tectonics • The theory that the earth’s outer shell is not one solid piece of rock but is broken into a number of moving plates.

  7. Continental Drift • The theory that the continents were once part of one large landmass & moved to their present positions after millions of years.

More Related