Igneous Rocks
Igneous rocks can be found in or around these.
Volcanos
Where are metamorphic rocks formed?
Under the Earths surface
Sediment
The three categories all rocks can be put into are _____, _____, _____
Igneous, Sedimentary, and Metamorphic
Rocks changed by intense heat and pressure while forming.
Metamorphic Rocks
Igneous rock is formed when ________ cools.
Magma
What are the two things required to form a metamorphic rock?
Heat and Pressure
The movement of sediment
Erosion
A rock that was magma then cooled, then was exposed to extreme heat and pressure. What type of rock is this?
Metamorphic Rock
Rock that are formed by the accumulation or deposition of small particles
Sedimentary Rocks
Which is a characteristic of igneous rocks?
a. Dull luster
b. Crystals visible
c. Layers visible
b. Crystals visible
Which of the following is a characteristic of a metamorphic rock?
a. Smooth texture
b. Fine-grained
c. Layers visible
b. Fine-grained
What is required for sediment to become a sedimentary rock?
Compaction and Cementation
What rock types can become sediment by weathering?
Sedimentary, Igneous, and Metamorphic
Rocks formed through the cooling and solidification of magma or lava
Igneous Rocks
True or False?
Fossils are found in igneous rocks.
False
True or False?
Metamorphic rocks can be made from both igneous and sedimentary rocks.
True
Which of the following is a characteristic in sedimentary rocks?
a. Dull luster
b. Shinny luster
c. Small holes in rock
a. Dull luster
A rock that was sediment then went under pressure, then was melted down and crystalized or cooled inside a volcano. What type of rock is this?
Igneous Rock
Wear away or change the appearance or texture by long exposure to the air
Weathering
Which is true about the grain type of an igneous rock?
a. Fine-grained
b. Coarse-grained
c. It can be both
c. It can be both
Where are metamorphic rocks often found?
Mountainous regions
Where are sedimentary rocks found?
deserts, lakes, rivers, seas
A rock that was magma then cooled, then went under weathering and erosion, and finally went under compaction and cementation. What type of rock is this?
the process of changing rock by wind, water, or other natural agents
Erosion