Unit 2 Lesson 4 Review - 7th Grade

The cold water doesn't absorb energy from the sun and the cycle still continues.

Which shape can't convection currents be?

Currents only flow near the surface of the ocean.

Global surface winds and global surface currents correlate to each other.

Antarctica Bottom Water is the deepest and densest water in the ocean.

a movement of water that results from density differences is called ____?

Deep currents form where the ____ of ocean water increases.

the cold water from deep in the ocean contains _____.

which is not an affect of surface currents?

Continents affect the directions of currents.

The sun affects currents near the surface of the ocean.

surface currents are caused by differences in water density.

Cold water sinks to the bottom of the ocean and warmer water stays near the surface.

Currents change direction when they meet continents.

______ causes cold, nutrient rich waters to move up to the ocean's surface.

the oceans contain stream-like movements of water called ___?

ocean currents don't transport which of the following?

Ocean currents are always cold.

In the Northern Hemisphere, currents are deflected to the right.

the deflection of moving objects from a straight path due to Earths rotation is called ____?

Wind affects currents.

Upwelling isn't extremely important in ocean life

Which of the following is not a step in how the sun's energy powers surface ocean currents?

ocean currents that occur at or near the surface of the ocean caused by wind are called ____?

Convection currents carry about 40% of the energy that is transported around Earth's surface.