Igneous
Are Igneous rocks hard or soft?
Hard
Are Sedimentary rocks hard or soft?
Soft
Are Metamorphic rocks hard or soft?
Hard
What causes sediment?
Soil erosion
How is lava formed?
When magma erupts from a volcano
Where are Igneous rocks normally found?
buried below the surface and covered with sedimentary rock, or are buried beneath the ocean water
Where are Sedimentary rocks normally found?
The ocean to deserts to caves
Where are Metamorphic rocks found?
Deep within the Earth or where tectonic plates meet
What can create Sediment?
wind forces, moving water forces, normal forces, and gravitational forces
What is lava made out of?
Crystals, volcanic glass, and bubbles
How are Igneous rocks formed?
From the cooling and solidification of molten (melted) rock
How are Sedimentary rocks formed?
Sedimentary rocks are formed from pre-existing rocks or pieces of once-living organisms
How are Metamorphic rocks formed?
When rocks are subjected to high heat, high pressure, hot mineral-rich fluids or, more commonly, some combination of these factors
What are the three main types of Sediments
Clastic, Chemical, and Biochemical
How hot is magma when it erupts?
1,300 to 2,600 °F
What are the three processes of igneous rocks?
Crystallization, Erosion and Sedimentation, and Metamorphism
What are some examples of Sedimentary rocks? (Name 2)
sandstone, siltstone, shale, mudstone, conglomerates, and breccias
What are some examples of Metamorphic rocks? (name 2)
Gneiss, quartzite, marble, schist, soapstone, and phyllite
What are some examples of Sediments? (Name 2)
boulders, pebbles, cobbles, sand, silt, and clay
Where does Earth's magma erupt?
Around the Pacific Ocean in what is commonly called the Ring of Fire
What is the process of igneous rock called?
Magmatic differentiation
What are the processes of the sedimentary cycle?
weathering of an existing rock, followed by the erosion of minerals, their transport, and deposition, then burial
What are 3 processes that can happen to Metamorphic rocks?
Contact, Regional, and Dynamic metamorphism
What are 4 types of sediments?(name 2 of the types)
lithogenous, hydrogenous, biogenous and cosmogenous
What keeps magma hot?
Pressure and radiogenic heating