Education Geology OCR A-level igneous rocks terms revision interactive - need to download for interactivity /....

1. Geology AS terms 2. Silicic, intermediate, mafic and ultramafic % silica What % Si02?? 66 752 65 451 3 24 3. 1098 4. gabhc dief 11. What type of plate margin is shown?…

Documents By Mr. D. A volcano is a mountain that forms when magma reaches the surface of the Earth. Magma...

VOLCANOES VOLCANOES By Mr. D What is a volcano? A volcano is a mountain that forms when magma reaches the surface of the Earth. Magma rises because it is less dense than…