Opening Assignment

List 3 things you already know about Marine science and 3 things you want to learn from this course. Use complete sentences.

Marine Science Unit 2:

Origins of the Ocean and Global Geography

By Mrs. Moreaux and Mrs. Shaw

Unit 2: Origin of the Ocean and Global Geography Learning Goals

Students will be able to Explain the origin of the Earth and it’s ocean.

List and locate the 5 main oceans and 7 continents.

Use proper coordinates such as latitude and longitude to locate specific locations on a global map.

Part 1

The Origin of the Earth and it’s

Ocean

How did the Earth form?Our solar system

formed from a solar nebula, a cloud of gas and dust, that collapsed and condensed about 4.56 billion years ago.

Most of the matter formed the Sun but the rest formed the planets and other bodies in our solar system

The Young EarthThe young Earth was

anything but habitable. Radioactive elements decaying within its mass and impacts from debris raining down from space generated intense heat—the first eon of Earth's history, from about 4.5 to 3.8 billion years ago, is named the Hadean after hades, the Greek word for hell

The Willamette Meteorite, the largest ever found in the United

States (15 tons)

Scientists study meteorite materials to discover what materials were first present on Earth that eventually were recycled into Earth’s crust.

How do we know that the cloud of gas and dust turned into our star, the Sun, and planets?

The Universal Law of Gravitation – everything with mass has gravity and is attracted to everything else with mass.

Where is our evidence of this?? http://www.youtube.com/watch?v=bFTYl07Pl

ww2:95- 9:54

Reminder . . .a scientific law if usually associated with a mathematical equation.

About 4 billion years agoAbout 4 billion years ago,

conditions on Earth gradually began to cool.

The planet's surface cooled, enough to allow water vapor to condense in the atmosphere and fall back as rain.

This early hydrologic cycle promoted rock weathering, a key part of the carbon-silicate cycle that regulates

Earth's climate

How did the Ocean form?

Condensing water vapor, along with ice delivered by comets and water trapped in meteorites, accumulated in the atmosphere and cooled the molten exterior of the planet to form a solid crust and produced the oceans.

This period ended roughly 3.8 years ago with the onset of the Archean age, by which time, the Earth had cooled significantly and primordial life began to evolve.

The Beginning of Oceans and Life!

How the Earth was made http://www.youtube.com/watch?v=wX2App8vM_k

http://www.youtube.com/watch?v=PIZPl9Pxl3o

Opening AssignmentReview your notes on the origin of the Earth and it’s Ocean and explain in your own words what happened when the Earth and it’s ocean was formed.

Part 2Global Geography

of the Earth’s Oceans and Continents

In order to study the oceans, we need to know where they are!

In PENCIL: Label the 5 oceans and the 7 continents on your blank world map.

Pacific

Atlantic

Indian

Arctic

Southern

North America

South America

Africa

Europe Asia

Australia

Antarctica

The oceans are so vast . . . so how do we keep track of specific locations?

Latitude & Longitude

Measured in degrees, minutes and seconds Ex. Vero Beach is Latitude: 27° 38' 17" N27 degrees, 38 minutes, 17 seconds NorthLongitude: 80° 23' 51" W80 degrees, 23 minutes, 51 seconds West

TODAY WE WILL ONLY MEASURE THE DEGREES

LatitudeLines of latitude run West - East

The Equator is latitude 0°

Latitude coordinate is always listed first, and followed by

N or S

Longitude

Lines of longitude run North-SouthThe Prime Meridian is Longitude 0°Longitude coordinate is always listed second, and followed by E or W

EASTWEST

NORTH

SOUTH

PracticeUsing the map provided plot the

following points:A. 15° N, 90° WB. 75° S, 75° WC. 45° N, 135° ED. 60° S, 105°E

EASTWEST

NORTH

SOUTH

Check your map

Homework – Locate the following on your map and list the coordinates1. Caribbean Sea 2. Gulf of Mexico 3. Mediterranean Sea 4. Bering Sea 5. Red Sea

Homework ANSWERS – Locate the following on your map and list the coordinates – ARE APPROXIMATE

1. Caribbean Sea 15° N, 70° W

2. Gulf of Mexico 30° N, 90° W

3. Mediterranean Sea 35° N, 15°E

4. Bering Sea 65° N, 170°W

1. Red Sea 20° N, 40°E

EASTWEST

NORTH

SOUTH

Check your map

Opening AssignmentExample: How do you get from the Arctic Ocean to the Indian

Ocean? Sail south through the Atlantic Ocean, around the

southern tip of Africa and north to the Indian Ocean.

What is the best way to get to the Mediterranean Sea from the middle of the Southern Ocean?

Describe the route from the Gulf of Mexico to the Red Sea.

You live in the Indian Ocean, and your friend lives in the Caribbean Sea. Where could you meet that would be a halfway point?

You live in the cold Bering Sea, and have decided to visit the warm waters of the Caribbean Sea. Describe the route you'll take.

Opening AssignmentWrite the question and the answer.1. Which continent are you on at the

coordinates:  25˚S, 135˚E? 2. Which ocean would you be swimming in

if you were at 5˚N, 65˚E? 3. Which of our states are you in if you are

at 19˚N, 155˚W? 4. Which body of water are you in at 25˚N,

90˚W? 5. Where the Equator intersects the Prime

Meridian, where are you, water or land?  Name the place.

Opening Assignment: Answers1. Which continent are you on at the

coordinates:  25˚S, 135˚E? Australia2. Which ocean would you be swimming in if

you were at 5˚N, 65˚E? Indian Ocean3. Which of our states are you in if you are

at 19˚N, 155˚W? Hawaii4. Which body of water are you in at 25˚N,

90˚W? Gulf of Mexico 5. Where the Equator intersects the Prime

Meridian, where are you, water or land?  Name the place. Water: Atlantic Ocean

HomeworkResearch the following information about the

Sea or Gulf you were assigned:Location: be able to find it on a map and list

one set of coordinates that are in the sea/gulfBordering countriesRoute you would sail from Vero Beach to get

there3 interesting (marine oriented)things to do

thereWhat marine resources the sea/gulf hasWhat marine “problems” the sea/gulf faces