What are the five steps to SEDIMENTARY ROCK FORMATION ?
100
These are the two things that cause rocks to change into metamorphic rocks.
What are HEAT and PRESSURE ?
200
This group of minerals make up about 90% of the rocks on Earth's crust.
What are SILICATES ?
200
Two samples of the same mineral may be different colors, but this will always be the same.
What is STREAK ?
200
It forms when magma cools within Earth.
What is INTRUSIVE ROCK ?
200
It is a unique form of sedimentary rock because it does not form from earlier rock, instead it forms from dead plants.
What is COAL ?
200
This kind of metamorphic rock will be easy to spot--it has a striped pattern.
What is a FOLIATED ROCK ?
300
It is the second most common group of rock forming minerals--it contains carbon and oxygen.
What are CARBONATES ?
300
It is the way light reflects from the surface of a mineral. They may be metallic or non-metallic.
What is LUSTER ?
300
They are temperature and cooling time.
What are the factors in determining the size of crystals in igneous rocks ?
300
This sedimentary rock is most likely to contain parts of decomposing seashells in it--CHALK that up to having been in an area which was once an ocean.
What is LIMESTONE ?
300
This is a type of metamorphic rock that consists almost entirely of one mineral, such as marble.
What is a NON FOLIATED ROCK ?
400
It is the method used at or near Earth's surface to recover valuable minerals.
What is SURFACE MINING ?
400
Identification of gold or pyrite can be determined by examining for this mineral property. A piece of gold has four times as much of this as a piece of pyrite of the same size.
What is DENSITY ?
400
The color of an igneous rock, be it light or dark, is determined by this.
What is determined by the level of silica ?
400
The bottom of a geological site is where you will find this.
What is the oldest or earliest layer ?
400
It is the type of metamorphic rock preferred for use on monuments, especially the part where faces will be carved.
What is a NON FOLIATED ROCK ?
500
It is the property of a special mineral that allows it to glow in the dark when exposed to ultraviolet (UV) light.
What is FLUORESCENCE ?
500
This property helps to identify a mineral by determining how the mineral breaks.
What is CLEAVAGE and FRACTURE ?
500
It flows easily and spreads out in thin sheets over great distances.
How does lava with low levels of silica spread ?
500
It is the word used to describe a fragmented texture in sedimentary rocks ?
What is CLASTIC ?
500
It is when bonds of atoms are broken in minerals, then joined together differently when new bonds are formed.