||the Earth's most outer layer.
||the layer directly beneath the earth's crust.
||the zone of practically melted rock in the upper mantle of the Earth.
||the cool solid portion of Earth that includes the crust and part of the upper mantle.
||magma that hardens on the earth's surface.
||magma that hardens with in the earth's surface.
||a natural solid substance that has a chemical and physical structure.
||a propriety of a rock that determines what it can scratched/ or be scratched by
||a propriety of rock that determines the reflection of light created