By Arantxa and Laura

RELIEF: this is the shape of the landforms, like mountains and plains.

RIVERS: A river is a natural watercourse, usually freshwater, flowing towards an ocean, lake, sea or another river.

TRIBUTARIES:A tributary or affluent is a stream or river which flows into a main stem river or a lake.

CLIMATE: this is the atmospheric weather of an area over a period of time.

SOIL: it's the layer of ground where plants and animals live.

VEGETATION: it‘s the group of plants that grow in an area.

FAUNA: it's the group of animals that live in an area.

• A mountain is a large or tall landform that ends usually in the form of a peak.

• A mountain range are many mountains together.

• A mountain chain are many mountain ranges together.

Sierras:Sierras:

Somosierra: está situada al norte. Sus montañas Somosierra: está situada al norte. Sus montañas tienen formas redondeadas debido a la erosión. su tienen formas redondeadas debido a la erosión. su pico más alto es Peña Cebollera, con 2.129 m.pico más alto es Peña Cebollera, con 2.129 m.

Guadarrama: está situada al oeste. su pico más alto Guadarrama: está situada al oeste. su pico más alto es Peñalara, con 2.430 m. En algunas zonas , el es Peñalara, con 2.430 m. En algunas zonas , el hielo ha erosionado el terreno y ha originado hielo ha erosionado el terreno y ha originado lagunas.lagunas.

Gredos: una parte está al suroeste. El Mirlo es el pico Gredos: una parte está al suroeste. El Mirlo es el pico más alto con 1.770 m.más alto con 1.770 m.

A plain is land with a low relief, that is flat or gently rolling.

Vegas : son terrenos llanos situados junto a los Vegas : son terrenos llanos situados junto a los ríos. Las vegas de los ríos Tajo, Tajuña y ríos. Las vegas de los ríos Tajo, Tajuña y Jarama son las más importantes.Jarama son las más importantes.

Campiñas: son zonas llanas con suelos Campiñas: son zonas llanas con suelos arcillosos. Algunas son las de Brunete y Algete.arcillosos. Algunas son las de Brunete y Algete.

Páramos: son zonas elevadas con suelos Páramos: son zonas elevadas con suelos pobres y calizos. Destacan los páramos de pobres y calizos. Destacan los páramos de Chinchón y de la Humosa. Chinchón y de la Humosa.

A valley is a depression with A valley is a depression with predominant extent in one direction. predominant extent in one direction. A very deep river valley may be A very deep river valley may be called a canyon or gorge.called a canyon or gorge.

Course: this is river's path from it source to its mouth. It Course: this is river's path from it source to its mouth. It has 3 main sections: has 3 main sections:

upriver upriver is the partis the part of the path from it source to the of the path from it source to the plains. plains.

mid-rivermid-river is the part of the river that goes through the is the part of the river that goes through the plains. The river can make curves called meanders.plains. The river can make curves called meanders.

downriverdownriver is the lowest and final part of the river's path is the lowest and final part of the river's path until it reaches the mouth.until it reaches the mouth.

Channel: this is the terrain the river flows through. Channel: this is the terrain the river flows through.

Water flows: this is the amount of water that a river Water flows: this is the amount of water that a river carries. The changes in the water flow during the year carries. The changes in the water flow during the year called flow regime.called flow regime.

Tajo: Tajo: El Alberche , el Guadarrama y El Alberche , el Guadarrama y el Jarama, que recibe las aguas del el Jarama, que recibe las aguas del Manzanares , del Guadalix , del Manzanares , del Guadalix , del Lozoya , del Henares y del Tajuña .Lozoya , del Henares y del Tajuña .

Ríos:Ríos:

El Jarama nace en Somosierra.El Jarama nace en Somosierra.

El Guadarrama nace en la sierra de El Guadarrama nace en la sierra de Guadarrama.Guadarrama.

El Alberche nace en la sierra de Gredos.El Alberche nace en la sierra de Gredos.

A lake is a large inland body of freshwater or A lake is a large inland body of freshwater or salt water.salt water.

• A A reservoirreservoir or an or an artificial lakeartificial lake is is used to store water. Reservoirs may used to store water. Reservoirs may be created in river valleys or may be be created in river valleys or may be built by excavation in the ground.built by excavation in the ground.

• SAN JUANSAN JUAN

• VALMAYORVALMAYOR

• ATAZARATAZAR

• PARDOPARDO

• RIOSEQUILLORIOSEQUILLO

• PEDREZUELAPEDREZUELA