the hydrosphere

*The hydrosphere

The hydrosphere is the

sphere of water that

surrounds our planet. In

Latin, “hydro” means

water.

Hydrosphere

Oceanic waters

Oceans Seas

Contintental waters

Rivers Lakes Icebergs Underground water

The hydrosphere is always moving: the water

cycle

The hydrosphere is always moving

Rivers: they have an

important job. They

drain the landscape,

and move water, and

minerals towards the

Earth’s oceans. 

The hydrosphere is always moving

Seas and oceans: they move because of three

phenomena: waves, currents and tides.

The hydrosphere is always moving

The surface of the

Earth’s oceans are

is in constant

motion, moving up

and down, in the

form of waves.

The hydrosphere is always moving

There are a number

of ocean currents

around the Earth. A

current is like a vast

river within the

ocean, flowing from

one place to another.

These currents are caused

by differences in

temperature, differences in

salinity, and by wind.

The hydrosphere is always movingBut the most important

factor moving water across

the ocean are tides. Tides

are caused by the Sun and

the gravity of the Moon.

Tides cause water levels to

rise and fall every six hours

approximately.