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 _______. ¾ th’s
surface

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

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

6. 4
_________ _____, ______, and ____________ are tools used by scientists to study the deep ocean.
Drilling
ships
sonar
submersible

7. 5 A piece of sediment collected by drilling is a ____ ______. core
sample

8. 6
Scientists use ______ to calculate the ______ of the ocean floor.
sonar
depth

9. 7
_______ uses sound waves to measure the sea floor.
Sonar

10. 11
To see the bottom of the ocean for him or herself, a scientist would use a ___________
submersible

11. Features of the Ocean Floor
Chapter 19 Section 2
Features of the Ocean Floor

12. 1
Continental _________ are made up of the continental rise, continental slope, and continental shelf.
margins

13. 2
The _______ place in Earth’s crust is a _________.
deepest
trench

14. 3 __________ plate boundaries cause deep ocean _______. Convergent
trenches

15. 4
The _______ regions on Earth are __________ plains.
flattest
abyssal

16. 5
A _______ is made up of minerals.
nodule

17. 6
The _____-_______ ridges in Iceland are unusual because they rise _____ sea level.
mid
ocean
above

18. 7 ________ are most likely to form in _____ _______. Seamounts hot
spots

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

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