Tides and Oceans
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.
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!