Igneous rock is group of rocks that is formed when melted rock cools and hardens. They are often glossy ,or shiny .Basalt ,granite, obsidian are types of igneous rocks •

Metamorphic Rocks• Metamorphic rock is a rock that is igneous,

sedimentary ,and other rock that is changed by heat and pressure deep within the earth. May have bands or layers.

• Marble ,gneiss and quartzite are metamorphic rocks.

Sedimentary Rock

• Sedimentary rock is a rock that weathered many pieces of rock and soil which then settles into layers. The layers are squeezed together until they harden into rock.

Sedimentary rock

• It’s formed where oceans ,lakes or other bodies of water exist or existed.

• Limestone ,sandstone and conglomerate are kinds of sedimentary rocks.

ROCK CYCLE

Igneous • Granite-

igneous• Basalt-

igneous• Obsidian-

metamorphic• MARBLE-

metamorphic• Gneiss-

metamorphic• QUARTZITE-

SEDIMENTARY• Conglomerate-

Sedimentary• LIMESTONE-

SEDIMENTARY• SANDSTONE-