Show:
Igneous
Metamorphic
Sedimentary
Minnesota Rocks
Earthquakes
100
How is an igneous rock formed?

When magma cools and hardens below the earth's surface

100

There are three ways that metamorphic rocks can form.. What are the three types of metamorphism..

Contact, Regional, Dynamic

100
What is the percentage of sedimentary rock that covers the earth's surface?
75%
100
What is the capital made out of?
Marble
100
Where are earthquakes most likely to occur?
Plate boundaries
200
How many types of igneous rocks have been identified?
700
200
Which metamorphic rock entirely makes up the Taj Mahal?
Marble
200
Which sedimentary rock has been used to make housewares?
sand-stone
200
What precious metals are in the Duluth complex?
Nickel, Platinum, Copper
200

What US State recently encountered a magnitude 7.9 earthquake?

Alaska
300
What percentage of the earth's crust is made up of igneous rock?
95%
300

What is the color of the famous colored metamorphic rock, Lapis Lazuli?

Blue

300
What is the type of sedimentary rock chalk is made out of?
A type of Limestone
300
What type of rock forms the cliffs at Minnehaha?
St. Peters Sandstone
300

What California city has had repeated earthquakes for over 25 years? 

Parkfield, CA

400

Why are intrusive rocks also called plutonic rocks?

After the Greek god Pluto, god of the underworld.

400

The word metamorphic (from Greek) means..

of changing form..

400
What is the type of sedimentary rock that forms from plant or animal debris?
Organic sedimentary rock.
400
What type of rock does Split Rock Lighthouse sit on?
Anorthsite- intrusive igneous
400

The most geologically active region on Earth is called what?

The Pacific Ring of Fire

500
Which igneous rock is the lightest rock on earth?
Pumice
500

Marble is quite durable, but it can be dissolved by what juice..

Lemon Juice
500
What is the term to describe the conversion of sediment to sedimentary rock?
Diagenesis
500
What is the state rock?
Lake Superior agate
500

About how many earthquakes are there a year?

500,000