Igneous Rocks
This can cool and harden and form igneous rock.
What is magma or lava?
These are little pieces of rocks, pebbles, mineral grains, and shell fragments that eventually form rocks.
What are sediments?
The way light reflects off of a mineral.
What is luster?
The lithosphere has the highest temperature inside the Earth.
What is the inner core?
The process of rocks changing from one kind of rock to another kind of rock over long periods of time.
What is the rock cycle?
This kind of igneous rock is formed when magma cools beneath the Earth's surface.
What is Intrusive igneous rock?
These are two ways that sediments are formed.
What is weathering and erosion?
The scale that is used to measure the hardness of minerals
What is Moh's Hardness Scale
A fossil is ___________.
What is the imprint of an organism on a rock?
Oldest fossils are found at the bottom of a layer.
Where are the oldest fossils found?
This type of igneous rock forms when lava cools on the Earth's surface.
What is Extrusive igneous rock?
These 2 things cause metamorphic rocks to form.
What are heat and pressure?
Another way to identify minerals; it leaves the color of the powder behind when rubbed against a rough white tile.
What is streak?
New ocean crust is created on the ocean floor.
What is a mid ocean ridge?
What happens if an igneous rock weathers? What rock does it turn into?
What is sedimentary rock?
This type of igneous rock is black with a glassy texture. We looked at it in class.
What is obsidian?
For an Igneous rock to become a sedimentary rock, what needs to happen?
What is weathering, erosion, compaction, and cementation?
The property that causes a mineral to glow under ultraviolet light
What is flourescent?
Seismic waves travel at different speeds through the Earth's interior.
What is each layer is made of different material?
Abundant (lots of), easy to identify, lived a short period of time, and were widespread (all over the earth).
What is an index fossil?
This determines the size of crystals that form in igneous rocks.
What is the cooling rate of the magma or lava?
The type of sedimentary rock that can contain fossils.
What is organic sedimentary?
You can see this property just by looking at a mineral. Many minerals can be several of these.
What is color?
New material is formed through sea-floor spreading and then moves out.
What is older islands moving away from the hot spot?
The 5 ways to test the properties of a mineral.
What is luster, streak, hardness, color and cleavage or fracture