Igneous rocks- Formed when magma or lava cools and solidifies. Magma is created when pre-existing rocks melt at subduction zones or in the Earth's mantle. As magma rises, ...

Curious Kids is a series for children of all ages. If you have a question you’d like an expert to answer, send it to [email protected]. Why don’t rocks burn? – Luke, age 4, New Market, ...

Igneous rock is formed by the cooling of molten rock, either at the surface (lava), or underground (as granite or other similar rocks).The heat of molten rock usually incinerates organisms rather than ...

There are three main types of rock — igneous, sedimentary and metamorphic — with varying mineral mixes depending on where and how the rock came to be. Igneous rocks — which form as magma ...

Sedimentary rock is one of the three main rock groups (along with igneous and metamorphic rocks) and is formed in four main ways: by the deposition of the weathered remains of other rocks (known ...

For instance, while igneous rocks form when the molten material from the planet’s core cools and sets as a single, solid mass, metamorphic rocks form when intense temperatures or pressures inside or ...