Social sciences unit 3: What do you have to know?

WATER

• Hydrosphere: definition, types of water and places where you can find them.
• States of the water: solid, liquid, gas, ice, water vapour, melting, evaporation, condensation, freezing. 
• Water cycle: stages and description of the process.
• Underground water: what is an aquifer, a well and a spring? what is the origin of the underground water? 
• Rivers of Spain: Miño, Duero, Tajo, Guadiana, Guadalquivir, Ebro, Júcar and Segura. 
• Watersheds: Atlantic ocean, Cantabrian sea, Mediterranean sea. 
• Parts of a river: source, middle course, lower course, catchment, floodplains, delta, mouth, watershed.