Chapter 15 Oceanography 12/9/11

Student Learning Target You need to understand and be able to discuss the how scientists believe the oceans formed.

Basic Facts What is Oceanography? We will be learning… The study of the Earth’s oceans. 1). How the oceans formed 2). Temperature Profile 3). What stuff they are made of 4). How waves form 5). How tides form

Origin of the Oceans Meteorites Volcanism Impact of comets releases water Contain up to 0.5% water themselves Water rising from deep inside the Earth to the surface by volcanic eruptions. Water Vapor is released with the dust and gas in an eruption Eventually cools and condenses

Oceans: Our Blue Planet Facts Major Oceans 71% of Earth is water All connected One massive body of water We divide them for geographic purposes and navigation 1). Pacific (Largest) 2). Atlantic 3). Indian Southern Hemisphere: Covered by more oceans then the Northern Hemisphere

Why is this not considered a lake? Sea What Is a Sea? Why is this not considered a lake? Not the same thing as an ocean Smaller body of water than an ocean Usually, surrounded by land