Layers of Earth
Types of Rock
Erosion
Geo-Formations
Plate Tectonics
100

This is the densest layer of earth.

What is the core?

100

This is formed when a rock is transformed into a new type of rock via extreme heat and pressure.

What is a metamorphic rock?

100

River deltas are a result of this step of erosion. 

What is deposition?

100

This is the tallest mountain range on record.

What are the Appalachian Mountains? 

100

A convergent boundary is when two plates do this to each other.

What is pushing towards?

200

This is a collection of the top-most layers of the Earth.

What is the lithosphere?

200

A natural, inorganic element or compound that has an orderly internal structure.

What is a mineral?

200

An organism growing on top of a rock could result in this type of erosion.

What is bio-erosion?

200

This forms when two undersea plates move away from eachother.

What is a mid-ocean ridge?

200

This landmass was named after the Greek words for "all the Earth."

What is Pangaea?

300

The upper mantle mainly makes up this group.

What is the asthenosphere?

300

These are the two most abundant elements found in minerals on Earth.

What are oxygen and silicon?

300

This specific type of rock/mineral is very vulnerable to chemical erosion.

What is limestone?

300

Hawai'i is a result of this uncommon phenomenon.

What is a hot spot?

300

This is the largest tectonic plate.

What is the Pacific plate?

400

Earth's core generates heat through this process.

What is radioactive decay?

400

This type of rock can never have layers.

What is an igneous rock?

400

Oxidation results in this.

What is Rust?

400

Scientists have given this name to the eventual re-unification of the continents.

What is Pangaea Ultima?

400

This was the year when Alfred Wegener came up with his theory of continental drift.

When is 1912?

500

This part of Earth is made up of iron, magnesium, silicon, oxygen, peridotite, olivine, pyroxene, and garnet.

What is the mantle?

500

These three metamorphic rocks are very common in the WNC region

What are amphibolite, schist, and gneiss?

500

Chemical Erosion can form this type of formation in the ground.

What is a cave?

500

This type of rock formation is the result of magma cooling beneath Earth's surface then being pushed to the surface after millions of years.

What is a pluton monolith?

500

This type of boundary is occurring between the Australian and Pacific plates, causing earthquakes.

What is a transform boundary?