Vocabulary
What is the rock called that is rare, beautiful and hard to scratch?
Gemstone
The way a mineral shines
Luster
The scale used to identify the hardness of a mineral
MOHS Scale
Granite
Igneous
Why is the process called in which rocks change?
The Rock Cycle
True or False?
Magma is melted rock above the earth surface while Lava is melted rock under the earth surface
True
Tool used to break minerals into pieces
Hammer
What is the scientist called that studies rocks?
Geologist
Limestone
Sedimentary
When lava or magma cools, what rock does it turn into?
Igneous
The breaking down of rocks into smaller pieces
Weathering
What is streak?
The color of the mineral when turned into powder
What are the three types of rocks?
Metamorphic, Sedimentary, Igneous
Marble
Metamorphic
When sedimentary rocks are changed, but happens to it?
It goes under heat and pressure
When sediments are pressed together
Compaction
What is clevage?
When a mineral breaks onto a flat surface
Difference between a rock and a mineral
Rocks are made of minerals, but minerals are not made of rocks
What rocks has air pockets?
Igneous Rocks
Metamorphic rocks melt and are turned into ________.
Lava/Magma
What are sediments?
Tiny bits of weathered rock
Name two more properties of minerals
Color, Hardness, Acid Reaction, Texture
What is a mineral that is common in people's homes?
Granite or Marble
Rocks that have crystals AND layers
Metamorphic
Sedimentary rocks are formed by __________.
Compaction and cementation