1. Chapter 19 Study Notes: The Ocean Basins

2. Chapter 19 Section 1 The Water Planet

3. 1 Earth’s oceans cover about ______ th’s of Earth’s _______. Earth’s oceans cover about ______ th’s of Earth’s _______. ¾ th’s surface

4. 2 Of all the water on Earth, ____ is found in the _______. Of all the water on Earth, ____ is found in the _______. 97% oceans

5. 3 The _______ and largest ocean on Earth is the _______. The _______ and largest ocean on Earth is the _______. deepest Pacific

6. 4 A large body of saline water that may be __________ by land is a _____. A large body of saline water that may be __________ by land is a _____. surroundedsea

7. 5 _________ _____, ______, and ____________ are tools used by scientists to study the deep ocean. _________ _____, ______, and ____________ are tools used by scientists to study the deep ocean. Drilling shipssonar bathyscaphs

8. 6 A piece of sediment collected by drilling is a ____ ______. A piece of sediment collected by drilling is a ____ ______. coresample

9. 7 Scientists use ______ to calculate the ______ of the ocean floor. Scientists use ______ to calculate the ______ of the ocean floor. sonar depth

10. 8 _______ stands for “SOund _______ And Ranging”. _______ stands for “SOund _______ And Ranging”. SONARNavigation

11. 9 The first step in a ______ transmission is to send out a series of _______ waves. The first step in a ______ transmission is to send out a series of _______ waves. sonar sound

12. 10 _______ uses sound waves to measure the sea floor. _______ uses sound waves to measure the sea floor. Sonar

13. 11 To see the bottom of the ocean for him or herself while remaining connected to a research ship, a scientist would use a ___________ To see the bottom of the ocean for him or herself while remaining connected to a research ship, a scientist would use a ___________ bathysphere

14. Chapter 19 Section 2 Features of the Ocean Floor

15. 12 Continental _________ are made up of the continental rise, continental slope, and continental shelf. Continental _________ are made up of the continental rise, continental slope, and continental shelf. margins

16. 13 A ________ ______ is part of the continental margin. A ________ ______ is part of the continental margin. continental shelf

17. 14 The continental ____ has a ______ slope and usually has less than 100 meters of water above it. The continental ____ has a ______ slope and usually has less than 100 meters of water above it. shelf gentle

18. 15 _________ from turbidity currents creates ________ canyons and the continental rise. _________ from turbidity currents creates ________ canyons and the continental rise. Erosion submarine

19. 16 _________ from rivers spread over the deep-ocean basins by means of ________ _________. _________ from rivers spread over the deep-ocean basins by means of ________ _________. Sediments turbiditycurrents

20. 17 The _________ ________ is best known for its depth. The _________ ________ is best known for its depth. Mariana Trench

21. 18 The _______ place in Earth’s crust is a _________. The _______ place in Earth’s crust is a _________. deepest trench

22. 19 __________ plate boundaries cause deep ocean _______. __________ plate boundaries cause deep ocean _______. Convergent trenches

23. 20 The _______ regions on Earth are __________ plains. The _______ regions on Earth are __________ plains. flattest abyssal

24. 21 Ocean sediments are _______ on the _______ plains. Ocean sediments are _______ on the _______ plains. thinnest abyssal

25. 22 A _______ is made up of minerals. A _______ is made up of minerals.nodule

26. 23 Most _____-______ ridges form _______ sea level. Most _____-______ ridges form _______ sea level. midocean below

27. 24 The _____-_______ ridges in Iceland are unusual because they rise _____ sea level. The _____-_______ ridges in Iceland are unusual because they rise _____ sea level. mid ocean above

28. 25 ________ are most likely to form in _____ _______. ________ are most likely to form in _____ _______. Seamounts hot spots

29. In addition to these notes study the diagram on the top of pages 476-477 so that you can identify the different features found on the seafloor including the following: In addition to these notes study the diagram on the top of pages 476-477 so that you can identify the different features found on the seafloor including the following:

30. continental shelf, continental slope, continental rise, trench, mid-ocean ridge, abyssal plain