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 ...

Scientists on NASA's Perseverance mission made a surprising discovery about the composition of rock in Jezero Crater, one that will help them get a better idea of when water existed on Mars, and ...

Igneous rocks are Earth’s original rocks. They form when magma (molten rock within the Earth) or lava (at the surface) cools to stone. The composition of the rock that melts and where that melt later ...

Introduction -- Physical properties of magma -- Intrusion of magma -- Forms of igneous bodies -- Cooling of igneous bodies and other diffusion processes -- Classification of igneous rocks -- ...

Igneous rock (derived from the Latin word ignis meaning fire), or magmatic rock, is one of the three main rock types, the others being sedimentary and metamorphic. Igneous rock is formed through the ...