2. List out the major 3 layers of the earth?

3. List out the subdivisions of the Mantle?

4. Pick two layers and describe their characteristics. I recommend you pick the layers that you found the most interesting or were the most surprising. For example:

Mr. Flinner finds the scale of the core, both inner and outer core, very surprising. It is amazing that such a significant portion of the earth's interior is made up of molten metal. That's so metal... :P

Crust, Mantle, Core

Explanation:

The core is the outer and mantle is the melting rocks and core is a hot rock the is like lava.

the oxygenated blood then leaves the lungs through pulmonary veins, which return it to the left heart, completing the pulmonary cycle. this blood then enters the left atrium, which pumps it through the mitral valve into the left ventricle. from the left ventricle, the blood passes through the aortic valve to the aorta.

deoxygenated blood leaves through the right ventricle through the pulmonary artery. from the right atrium, the blood is pumped through the tricuspid valve (or right atrioventricular valve), into the right ventricle.