Hydrosphere – The total amount of water on a planet

(Pronounced hi-druhs-fear)

To remember the definition of the word hydrosphere, use the following mnemonic:

The hydrants created a sphere (hydrosphere) made out of all the water on the planet.

Examples of hydrosphere in a sentence

The Earths hydrosphere is cycled around the earth via the water cycle.

The hydrosphere on Mars is under investigation by NASA.

We have been studying the Earths hydrosphere in science class.