Earths Layers

Earth’s Layers:

Earth’s Layers By: Jenny

Earth’s Layers:

Earth’s Layers The diagram points out and displays what earth’s layers would look like if we were to cut open the earth. In this PowerPoint, we will explore how the layers of earth can change due to certain events and learn what resources we get from each layer.

Crust:

Crust What is the crust and what resources do we get from this layer? Earth’s crust is the layer we live on. Compared to the other layers, the crust is very thin. It is about 23 miles deep. Some of the resources we get out of earth’s crust include, soil, clay, metamorphic rocks, igneous rocks, sedimentary rocks, sand, and other minerals.

Crust:

Crust The crust is where earthquakes occur. The earth’s crust is made up of different elements depending on where you dig. The thickness also varies depending on where it lies. It is thinner on the ocean floor then it is on land. The ocean crust is mainly made of basalt where as land has many of lighter rock elements that were named on the previous slide.

Mantle:

Mantle Where is earth’s mantle located? What is it made of? Earth’s mantle is located below the crust. It is the largest of the layers The mantle has an upper and lower layers. The mantle is made of iron, aluminum, oxygen, silicone, magnesium, and calcium. Diagram of earth’s layers

Mantle:

Mantle The Earth’s mantle is about 1000 degrees Celsius. The mantle is the layer where volcano magma is found. “For better understanding, we can say that the mantle layer is divided into the upper and lower sections. The upper mantle is much cooler than the lower (deeper) section” (Ningthoujam Sandhyarani 2011). You can view a video on Earth’s layers at this link. http:// youtu.be/XC5v5ZXTul4

Core:

Core Where is Earth’s core located? What is it made of? Are there any resources we get from this layer? This layer has an inner and outer layer. It is the innermost layer. This layer is mainly solid. The core is made of metal. The metals include iron and nickel.

How does Earth’s layers change and what effects them?:

How does Earth’s layers change and what effects them? There have been many factors since the age of time that have led to changes in earth’s layers. They consist of earthquakes, volcano eruptions, landslides, floods, blizzards, tsunamis, weathering and erosion.

Slide 9:

Volcanoes Earthquakes Weathering Landforms Erosion Mantle Core Crust

References:

References National Earth Science Teacher Association. (2011). The Earth’s Crust, Lithosphere, Asthenosphere . Retrieved on May 27 th 2011 from http://www.windows2universe.org/earth/interior/earths_crust.html NGU. (2007). Earth’s crust and mantle. Retrieved on May 27, 2011 from http://www.ngu.no/en-gb/hm/Norwegian-geology/Earths-crust-and-mantle/ California State Northridge University. Layers Upon Layers. Retrieved on May 27, 2011 from http://www.uvm.edu/~inquiryb/webquest/fa05/lkenney/ Ningthoujam Sandhyarani . (2011). Four Main Layers of Earth. Retrieved on May 27, 2011 from http://www.buzzle.com/articles/four-main-layers-of-the-earth.html eDewcate (Producer & Director). (June 19, 2009). Structure of the Earth [Video]. Retrieved on May 29, 2011 from http://youtu.be/XC5v5ZXTul4 Scott Foresman (2008). Science The Diamond Edition Teachers Edition . New York: Pearson Education.