Tides and Oceans

Tidal Curiosities

Why do tide cycles take 24 hours and 50 minutes? What is a neap tide? And more.

What Is El Niño?

The temperature of the ocean's surface has a far-reaching effect on weather.

How to Escape Rip Currents

Wave, yell and swim parallel.

What Causes Tides?

Tides are a complicated dance between gravity and inertia.

Storm Surge

One of the most dangerous parts of a hurricane.

What Is La Niña?

Learn about this weather pattern.

What Is the Gulf Stream?

Learn more about this strong ocean current!

What Is a Red Tide?

A red tide is a toxic event that occurs on the coastline when algae—a plant-like organism—grows out of control. Learn more about what causes these toxic events and how they can be dangerous to people and animals.

Video: What Causes Tides?

Watch this video to learn what causes tides!