3 Types of Rocks
This rock is formed of small pieces squished together
What is sedimentary?
Rocks are made of
What are minerals?
Karl sorted his rocks into a group of gray rocks, black rocks and white rocks. Which property did he look at?
Color
The part of the Earth where we live.
What is the crust?
This rock is formed from heat AND pressure
What is metamorphic?
True or false: some minerals are softer than your fingernail
True
A rock that feels rough is an example of which property?
What is texture
True or false: big and small are good words to describe a rock
This rock is formed from magma or lava
What is igneous?
True or false: minerals always have a crystal structure
True
The way a rock reflects light is called ___________. Examples are metallic and pearly.
What is luster
The biggest layer of the Earth
What is the Mantle?
When a rock breaks into smaller pieces.
What is weathering?
The small pieces that make up a sedimentary rock.
What are sediments?
Tell one property used to sort and describe minerals.
Color, texture, hardness, luster
This Earth layer is made of solid metal.
What is the inner core?
When rock pieces move somewhere else.
What is erosion?
True/False: Minerals are alive
False!
List two properties of rocks that we looked at in class.
Color, texture, luster, hardness
What are tectonic plates?
What is Pangea?