Rocks Crossword

What is the name of the hardness scale?
What is a natural non living substance that makes up rock?
Which property refers to a mineral's ability to scratch another mineral?
What rocks that formed from sediments and are cemented together often to form layers
What shows how rocks change from one form to another- it is ever changing?
What property do you use when you scratch a white tile?
What is the age of one thing compared to another?
Which rocks form from other rocks because of heat and pressure?
The way the surface of a mineral reflects light is called?
A material made of up one or more minerals is called a?
The process by which rocks are broken down into smaller pieces is called?
The process by which wind, and moving water carry away bits of rock is called?
Which rock forms when completely melted rock hardens?
What is the age of one thing compared to another?