global water distribution

How Much Water Is on Earth?

Water is in the ground, on the surface, in the air and in our bodies. But how much global water distribution is in glaciers, groundwater, rivers and lakes?

Ocean Tides Moon Effects

What Causes Ocean Tides?

When the moon is close to Earth, its gravitational pull stretches the side it’s facing. Because oceans hold a set amount of water, levels rise in one area.

States of Water

States of Water: Gas, Liquid and Solid

Because water is extremely versatile, it changes phases rapidly. The states of water are gas, liquid and solid. Water cycles through these phases in nature.

5 oceans earth

What are the 5 OCEANS of the World?

Since the year 2000, the International Hydrographic Organization (IHO) started recognizing 5 oceans: Pacific, Atlantic, Indian, Arctic and Southern Ocean.

River Delta Schematic

River Delta: How It Forms

Streams carrying too much sediment clogs the entrance into the basin. As sediments dump in, water flow decelerates and widens the entrance forming a delta.

Ocean Currents

The Major Ocean Currents of the World

Ocean currents are like giant conveyor belts moving huge amounts of water all the time. Wind, temperature and salt gradients all influences ocean currents.