Rocks and Minerals

What are the two most common igneous rocks in the Earth's crust?

What can cause any type of rock to become a sedimentary rock?

Where is a likely location for organic sediments to be deposited?

Which of the following are ways that we use minerals.

Extrusive igneous rocks are formed from __________.

True/False: Igneous rock can be formed both above and below the Earth's Surface.

What are small or microscopic grains in a rock called?

Crystals in an intrusive igneous rock are ________ because they cool more slowly.

What does organic mean?

What is the meaning of metamorphic?

What processes need to happen to change a rock from igneous to sedimentary?

True/False: A mineral deposit that is large enough to be mined for a profit is an ore.

What can cause any type of rock to become igneous rock?

What type of rock are fossils usually found in?

True/False: Metamorphic rocks can form on the Earth's surface.

A type of metamorphic rock with a banded appearance.

True/False: Rocks and sediments can be organic but minerals are inorganic.

The rock in the picture is obsidian. Is obsidian intrusive or extrusive?

When all of the grains in a rock are easy to see the grains are called

What can cause any rock to become metamorphic rock?