Chapter 9.2

Ocean Currents: The Forces That Shape Our Seas and Climate

Discover how ocean currents move heat, nutrients, and energy across the globe, influencing marine ecosystems and regional climates worldwide.


What You'll Learn

Wind, rotation, and density drive all major ocean current systems.
The Gulf Stream carries warm water northward along Atlantic coasts.
Upwelling brings deep nutrients to surface, supporting marine ecosystems.
Ocean currents regulate global climate by redistributing thermal energy.

What You'll Practice

1

Students analyze how warm and cold currents affect marine ecosystems.

2

Questions test understanding of Coriolis effect and gyre formation.

3

Learners identify key vocabulary including upwelling and thermohaline circulation.

Why This Matters

Understanding ocean currents is essential for explaining global climate patterns, marine biodiversity, and the environmental changes that affect communities and ecosystems worldwide.

This Unit Includes

Practice exercises
Learning resources

Skills

Ocean Currents
Coriolis Effect
Thermohaline Circulation
Upwelling
Marine Ecosystems
oh flag

OH Curriculum Aligned

Pug instructor