Aprende a situar los países de Europa
miércoles, 20 de abril de 2011
jueves, 14 de abril de 2011
Rocks inside the Earth
Rocks
The heat inside the Earth melts rocks. These melted rocks can form volcanoes and cause earthquakes. Earthquakes are tremors on the
Earth's surface caused by the heat energy inside the Earth. Volcanoes and earthquakes can change landscapes quickly and violently.
The heat inside the Earth melts rocks. These melted rocks can form volcanoes and cause earthquakes. Earthquakes are tremors on the
Earth's surface caused by the heat energy inside the Earth. Volcanoes and earthquakes can change landscapes quickly and violently.
martes, 12 de abril de 2011
lunes, 11 de abril de 2011
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