Igneous Rocks
More rocks!
Take me to the river!
Ice Ice Baby
Shine bright like a diamond
100
These two main types of igneous rocks are classified based on where they cool and solidify.
What are extrusive and intrusive rocks?
100
This type of rock is formed from the weathering and compaction of other rocks.
What are sedimentary rocks
100
This type of lake forms when a river finds an easier path and skips a meander.
What is an oxbow lake?
100
This is the term for a body of dense ice that is constantly moving under its own weight.
What is a glacier?
100
This scale is used to test the hardness of a mineral.
What is the Mohs Scale?
200
This extrusive igneous rock cools so quickly it forms a glass-like appearance with no visible crystals.
What is obsidian?
200
These two factors are required to form metamorphic rocks.
What are heat and pressure?
200
This term describes a bend in a river.
What is a meander?
200
This is the material pushed along and then dropped by a glacier.
What is glacial till?
200
Metallic, non-metallic, glassy, or vitreous are all terms used to describe this about a mineral
What is luster?
300
This intrusive igneous rock is the most common type and is often used in kitchen countertops.
What is granite?
300
This type of metamorphic rock is made when granite undergoes heat and pressure 
What is gneiss?
300
This term describes a region where all runoff drains into the same body of water.
What is a watershed?
300
This type of glacier flows downhill from ice accumulations near the top of mountains to a valley below.
What is an alpine glacier?
300
This term refers to a mineral that breaks along straight lines.
What is cleavage
400
This most common extrusive igneous rock makes up the majority of the Earth's seafloor.
What is basalt?
400
The process of rocks being broken down into smaller pieces and moved to new locations.
What are weathering and erosion?
400
This fan-shaped pile of sediments forms where a river meets the ocean.
What is a delta?
400
Scientists gain valuable information on long-term climate by removing this from glaciers.
What is an ice core?
400
Despite its golden color, this mineral leaves a black streak, unlike real gold. Don't be fooled!
What is pyrite?
500
These rocks are typically lighter in color, and are rich in feldspar and silica.
What are felsic rocks?
500
This sedimentary rock made of sand grains that have been cemented together
What is sandstone?
500
This is the part of a river where the most erosion takes place.
What are cut banks?
500
The region of a glacier where the ice melts is called this.
What is the zone of ablation?
500
This is the hardness mineral, and whopping 10 on the Mohs scale.
What is a diamond?