• The last Ice Age ended 10,000 years ago
• Today only 10% of the earth is covered by ice Ice sheets, ice caps and valley glaciers
• A glacier is like a very slow moving river of ice
• They are formed in areas of high snowfall in winter and cool temperatures in summer.
• This means that the snow that accumulates in the winter and isn't lost by melting or evaporation during the summer.
• These conditions occur in polar and high alpine regions.
• There are two main types of glaciers: valley glaciers and continental glaciers.

This video provides a good introduction to glaciation.