Vocab
Minerals
Fossils
Rock Cycle
Earth's history
100

This bacteria gave us oxygen.

What is stromatolites.

200

This vocab term has a tendency to break into irregular pieces. 

What is fracture

200

This rock forms deep under ground.

What is metamorphic rock 

200

This is when was the earth formed.

What is 4.5 billion years ago?

300

This is the most common mineral.

 What is feldspar

300

This is the most common fossil in a rock.

What is limestone

300

These are the 3 types of the rock cycle.

What is igneous, sedimentary, metaphoric. 

300

This super contented caused "snowball earth".   

What is rodinia

400

This process forms igneous rocks.

what is molten rock cools and hardens

400

This year earth had a downpour.

What is 4,000,000,000 ya

500

These dinosaurs appeared in?

What is 225,000,000