This makes up most of the water on Earth (97%)
What is salt water?
These are the two types of fresh water on Earth
What are surface water and groundwater?
A body of water in continuous movement that flows to the sea or ocean
What is a river?
This is one of the layers of the Earth. It is made up of all the water on Earth.
What is the hydrosphere?
This is the longest river in the Iberian Peninsula
What is the Tajo river?
These are movements caused by differences in temperture of sea water.
What are ocean currents?
This type of water can form aquifers and underground rivers
What is groundwater?
This is the place where a river begins
What is the source?
Water droplets become larger and fall as rain or snow
What is precipitation?
This is the river with the most abundant flow regime in Spain
What is the Ebro?
The rising and falling of the sea level.
What are tides?
This type of water is found in rivers, lake, and as ice in glaciers
What is surface water?
The amount of water that a river carries
What is the flow regime?
Liquid water evaporates into the air as water vapour.
What is evaporation?
This is the largest watershed in Spain
What is the Atlantic watershed?
The movements of water caused by the wind
What are waves?
An area of land where all the main rivers flow into the same area
What is a watershed?
A river that flows into another river
What is a tributary?
Water vapour condenses into tiny water droplets and forms clouds.
What is Condensation?
The tributaries of what river are the Pisuerga, Elsa, and Tormes?
The Duero
What are the five oceans on Earth?
Pacific, Antarctic, Arctic, Atlantic, Indian
The Navia, Nalon, Eo, and Nervion are part of which watershed?
The Cantabrian watershed
What is the mouth of a river?
Water in rivers goes into the oceans, the cycle starts again.
What is collection?
The Sil is the main tributary to what river in the Atlantic watershed?
The Mino