Resource ES Many Planets, One Earth Vocab 2

Type of rock formed from the cooling (so it becomes a solid) of liquid magma or lava.

• metamorphic

• igneous

• sedimentary

Type of rock that is formed by sediments (little pieces of rocks) being pressed together over a long period of time.

• metamorphic

• igneous

• sedimentary

The only type of rock that has fossils is...

• metamorphic

• igneous

• sedimentary

celestial is....

• something in the sky or related to the sky

• another word for atmosphere

• a type of rock

The Cambrian explosion was...

• a theory as to why dinosaurs disappeared

• when most major animal groups appeared in the fossil record.

• an explosion that created the Grand Canyon

The Principle that states the oldest rocks are at the bottom of any rock layer is called...

• the Principle of Superposition

• The Principle of Crosscutting

• The Principle of Pate Tectonics

The Principle that states the layer of rock cutting across another layer of rock, has to be YOUNGER than the rock it cuts across is called....

• The Principle of Superposition

• The Principle of Metamorphic Rock

• The Principle of Crosscutting

• The Principal of Mrs. Boughton

Rocks that were once igneous or sedimentary rocks, but have been changed as a result of intense heat and/or pressure within the Earth's crust are called...

• metamorphic rock

• sedimentary rock

• igneous rock

• Cambrian rock

The theory that the solid part of the earth is divided into a small number of plates which float on and travel over the mantle of the Earth is called....

• The Pangaea Theory

• The Terrestrial Planet Theory

• The Plate Tectonic Theory

Pangaea is a theory that states...

• the Earth was once a 'Super Continent' but then pieces broke off and drifted apart

• The Earth was once frozen but an increase in carbon melted it

• The Earth was originally completely liquid and not solid