Answer:
Igneous Rocks Metamorphic Rocks · The Word ?igneous? comes from the Latin word ignes meaning ?fire?. · Igneous rocks are formed when molten magna cools and solidifies. · Igneous rocks are also called primary rocks as they solidify directly into rocks from magma. · There are two types of igneous rocks; intrusive igneous rocks cool deep inside the earth?s crust form rocks. · The slow rate of cooling produces large crystals. These rocks are also known as plutonic rocks Example ? Granite. · Extrusive or Volcanic rocks cool down on the surface. As the lava cools quickly on the earth?s crust small crust small crystals are created ?Example- Basalt · The term ?metamorphic? is derived from a Greek word metamorphose meaning change of form. · Metamorphic rocks are those rocks whose properties and appearances have changed within the earth?s crust due to high temperature or pressure or both. · Metamorphic rocks are usually hard rocks and do not break easily. · Metamorphic rocks are usually hard rocks and do not break easily. · Examples of Metamorphic rocks are slate, schist quartzite, marble etc.
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