UNIT D CH 2 – The oceans
NAME ______________________________
VOCABULARY
Lesson 1
1. water cycle
_______________________________________________
_______________________________________________
2. evaporation
_______________________________________________
_______________________________________________
3. condensation
_______________________________________________
_______________________________________________
4. precipitation
_______________________________________________
_______________________________________________
Lesson 2
1. wave__________________________________________
______________________________________________
2. storm surge
_______________________________________________
_______________________________________________
3. tide
_______________________________________________
_______________________________________________
4. surface current
_______________________________________________
_______________________________________________
5. deep ocean current
_______________________________________________
_______________________________________________
Lesson 3
1. shore zone
_______________________________________________
_______________________________________________
2. continental shelf
_______________________________________________
_______________________________________________
3. abyssal plain
_______________________________________________
_______________________________________________
4. trench
_______________________________________________
_______________________________________________
5. mid-ocean ridge
_______________________________________________
_______________________________________________
Ch 2 Review Questions
Name _______________________________ Lesson 1
1. What is the water cycle?
2. Explain how water changes from a liquid to a gas and
back to a liquid in the water cycle.
3. What factors affect the saltiness or density of ocean
water?
**CRITICAL THINKING**
How could you make salt water denser?
TEST PREP – Which of these processes occurs when a gas
changes to a liquid?
A. evaporation B. condensation C. precipitation D. salinity
Lesson 2 Review Questions
NAME __________________________________
1. How does an object floating in water move as a wave passes
it?
2. What causes tides?
3. Why does the moon have a greater effect on tides than the
sun has?
**CRITICAL THINKING**
Compare and contrast surface currents in the Northern and
Southern Hemispheres.
TEST PREP
-- Which is caused by density differences?
A. surface currents
B. ocean waves
C. deep ocean currents
D. ocean tides
Lesson 3 Review Questions
NAME ____________________________________
1. How are the shore zone and continental shelf related?
2. What is unusual about Iceland?
3. How does new ocean floor form?
**CRITICAL THINKING**
What would happen if old ocean floor were not destroyed in deep
trenches?
TEST PREP
-- Which ocean floor feature forms when one
plate slides beneath another plate?
A. abyssal plain
B. trench
C. shore zone
D. volcano
UNIT D CH 2 Summaries
NAME __________________________
Lesson 1:
The waters of the ocean provide fresh water for Earth
through the water cycle. As water moves through this cycle, it
changes from a liquid to a gas and back to a liquid through the
processes of evaporation and precipitation. Sodium chloride is the
most common salt in the ocean. The salts and other substances
dissolved in ocean water make it denser than fresh water.
Lesson 2:
Ocean waves form as wind blows over the water’s surface.
Strong, gusty winds over a large area can cause a large wave called
a storm surge. Tides are the rise and fall of ocean water caused by
the pull of gravity between Earth, the moon, and the sun. Surface
currents are caused by the blowing of steady winds. Deep ocean
currents are caused by differences in saltiness or water
temperature.
Lesson 3:
Many of the features found on dry land also are found on the
floors of Earth’s oceans. In the shore zone, a continent slopes
beneath the water’s surface. This area of the ocean supplies
humans with many valuable products. Far away from the shore
zone, a long mountain ridge crosses the ocean floor. Other
features of the ocean floor include vast abyssal plains and deep
ocean trenches. The movement of Earth’s plates forms many of
these features. Plate movement also causes the formation of new
ocean floor and the destruction of old ocean floor.