1. Bell Ringer _____ % of Earth’s water is salt water.
Today is the start of Quarter 4
Quarter 3 grades are almost completed.
Students who didn’t take midterm will take this week during lunch
97.5

2. Oceanography

3. Oceanography
Oceanography – study of the Earth’s oceans, including saltwater properties, ocean currents, and marine organisms

4. Oceanography Ocean research first began in the 1800s
HMS Challenger – researched saltwater and its currents
Meteor – researched the seafloor using SONAR
Route of Meteor
Route of HMS Challenger

5. Oceanography
SONAR – a ship sends out sound waves and measures the time it takes to echo back in order to calculate distances and map the ocean floor

6. Oceanography
Topex/Poseidon Satellite – satellite that orbits the Earth, mapping the ocean floor, as well as monitoring currents, temperatures, and waves
Submersibles – vehicles that explore the deepest parts of the seafloor (trenches)

7. Oceanography
So, SONAR, Topex/Poseidon, and submersibles all explore the ocean ______.
SONAR explores it on the _______ of the water, Topex/Poseidon explores it out in _____, and submersibles actually travel to the _________.
floor
surface
space
seafloor

8. Major Oceans and Seas About 71% of the Earth is covered in oceans
Oceans cover most of the Southern Hemisphere

9. Major Oceans and Seas Pacific Ocean – largest ocean
California
Pacific Ocean – largest ocean
Contains about 50% of all seawater
Larger than all the continents combined
Hawaii

10. Major Oceans and Seas
Atlantic Ocean -- second largest ocean, extends from the Arctic Circle (near the North Pole) to Antarctica
Europe
and Africa
North America
South America

11. Divisions of the Atlantic Ocean
Arctic (Northern) Ocean – water north of the Arctic Circle (but still considered part of the Atlantic Ocean)
Antarctic (Southern) Ocean – water south of the Antarctic Circle (but still part of the Atlantic)

12. Major Oceans and Seas Indian Ocean -- third largest ocean
Africa
Indian Ocean -- third largest ocean
Mostly located in the southern hemisphere
Asia
Australia

13. A: Which labeled letters are part of
B: the Atlantic Ocean? C: D: E:
Atlantic
Indian
Arctic
C&D (Arctic & Antarctic)
Antarctic
Pacific C A E B E D

14. Major Oceans and Seas
Seas – large bodies of water that are smaller than oceans
Examples – Gulf of Mexico, Mediterranean Sea, Bering Sea

15. Major Oceans and Seas
Some are landlocked (land all around them), while others connect to oceans
Since there is no definite line between them, seawater and ocean water are basically the same
Atlantic Ocean
Gulf of Mexico
Caribbean Sea

16. Today… Complete Saltwater Vocabulary (quiz on Friday)
Put in basket when you are finished
Complete Sailing the Seas activity (you will need either your phone or a laptop)

19. Labeling the Planet
You can’t understand the oceans unless you understand how they relate to the planet
Label the continents and oceans using previous knowledge and today’s notes
Globes are available around the room. Get up and look if you need to.
Only one person per globe, so get the information you need and then sit back down.

20. Vocab Word in a Sentence
4-Square Vocabulary
Fold a sheet of paper in half two ways so that you get four squares. Put one vocab word on the front and a different one on the back. Alternate vocabulary words with the person sitting beside you until the two of you have done all 20 words (each person should have 10 words, 2 per page). KEEP THESE because we will be looking at them later in the week.
Vocabulary Word
Picture of Vocab Word
Vocab Definition
Vocab Word in a Sentence