Ch.13- Exploring the Oceans

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Presentation transcript:

Ch.13- Exploring the Oceans

What is the standard? S6E3. Students will recognize the significant role of water in earth processes.

What is the element? c. Describe the composition, location, and subsurface topography of the world’s oceans.

Take a closer look… What are we describing in the element? What does subsurface topography mean?

Copy in your notes… Subsurface= Below the surface Topography= description of the physical features of an area

The Ocean Floor Consists of many different regions Consists of 3 groups of marine life: Plankton (squid) Nekton (sharks) Benthos (starfish)

The Ocean Floor

Studying the Ocean Floor Sonar (Sound Navigation and Ranging) Used to determine the ocean’s depth by sending sound pulses from a ship into the ocean

Studying the Ocean Floor Geosat A satellite used to measure changes in the height of the ocean’s surface

What is sonar?

Technology that uses sound pules from a ship down into the ocean

What is geosat used to measure?

Changes in the height of the ocean’s surface

Alvin Underwater Vessels Research vessel used to travel to the deep ocean Used to search for sunken ships, recovery of lost items, and exploring the ocean floor

Exploring the Ocean Floor Deep Flight An underwater airplane used to explore the deep ocean

Exploring the Ocean Floor Jason II and Medea Robotic vessels used to explore the ocean

Name and explain one type of underwater vessel

Jason II/ Medea: Robotic underwater vessels Deep Flight: Underwater airplane Alvin: Research vessel

Abyssal Plain Like a flat board A large, flat, almost level area of the deep-ocean basin Like a flat board Abyssal Plain An abyssal plain is covered by mud and marine organisms.

Continental Slope

Continental shelf

Rift Valley

Mid-ocean ridge: A long, undersea mountain chain that forms along the ocean floor

Continental rise: The gently sloping section of the continental margin located between the continental slope and abyssal plain

Seamount: A submerged mountain on the ocean floor that has a volcanic origin

Ocean Trench: A steep, long depression in the deep ocean floor that runs parallel to a chain of volcanic islands or a continental margin

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