Salt Water
Fresh Water
Rivers
Water cycle
Rivers of Spain
100

This makes up most of the water on Earth (97%)

What is salt water?

100

These are the two types of fresh water on Earth

What are surface water and groundwater?

100

A body of water in continuous movement that flows to the sea or ocean

What is a river?

100

This is one of the layers of the Earth. It is made up of all the water on Earth.

What is the hydrosphere?

100

This is the longest river in the Iberian Peninsula

What is the Tajo river?

200

These are movements caused by differences in temperture of sea water.

What are ocean currents?

200

This type of water can form aquifers and underground rivers

What is groundwater?

200

This is the place where a river begins

What is the source?

200

Water droplets become larger and fall as rain or snow

What is precipitation?

200

This is the river with the most abundant flow regime in Spain

What is the Ebro?

300

The rising and falling of the sea level.

What are tides?

300

This type of water is found in rivers, lake, and as ice in glaciers

What is surface water?

300

The amount of water that a river carries

What is the flow regime?

300

Liquid water evaporates into the air as water vapour.

What is evaporation?

300

This is the largest watershed in Spain

What is the Atlantic watershed?

400

The movements of water caused by the wind

What are waves?

400

An area of land where all the main rivers flow into the same area

What is a watershed?

400

A river that flows into another river

What is a tributary?

400

Water vapour condenses into tiny water droplets and forms clouds.

What is Condensation?

400

The tributaries of what river are the Pisuerga, Elsa, and Tormes?

The Duero

500

What are the five oceans on Earth?

Pacific, Antarctic, Arctic, Atlantic, Indian

500

The Navia, Nalon, Eo, and Nervion are part of which watershed?

The Cantabrian watershed

500
The place where the river meets the sea, ocean or lake

What is the mouth of a river?

500

Water in rivers goes into the oceans, the cycle starts again.

What is collection?

500

The Sil is the main tributary to what river in the Atlantic watershed?

The Mino