_________ is a naturally occurring solid material composed of one or more minerals

__________ rocks are formed by great heat and pressure.

_________ are formed from molten lava and magma.

_________ rocks are formed by years and years of sediment compacting together and becoming hard.

The ________is the continuous process by which rocks of one kind change into rocks of another kind.

All __________ are solid, naturally forming, and have their own unique chemical composition.

What kind of rock is formed by hardened lava cooled on the surface of the Earth?

What kind of rock is formed by hardened magma that has cooled slowly below the Earth's surface?

This type of extrusive igneous rock looks like black glass.

Fossils are most often found in this type of rock.

Sedimentary rocks form in layers called ________, which can sometimes be seen on the side of cliffs.

This black combustible sedimentary rock is primarily used as a fossil fuel.

This type of rock can be formed from tectonic plates colliding and creating friction.

This term describes how well a mineral reflects light.

Scientists often use the Moh's scale to describe ______ which is how easy it is to scratch the surface of a mineral .

This test determines the color of the mineral in powdered form and is determined by rubbing the mineral across a rough hard surface like a tile.

This describes how a mineral breaks up into pieces. Some break up into small cubes while others may break up into thin sheets.

This is often used to describe a mineral, but isn't always the best way to tell one mineral from another since some like topaz may be white, gold, pink, or blue

This is the preserved remains or impressions of a living organism such as a plant, animal, or insect and most often found in sedimentary rock.

The Earth's inner core is made up of these two minerals.

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