Metamorphic
How are metamorphic rocks formed?
Heat and pressure
How are igneous rocks formed?
Partial melting of rocks within the Earth's crust
How are sedimentary rocks formed?
The erosion of other existing rocks
Moh's
Are minerals organic or inorganic?
Inorganic
What layer of the Earth would you find metamorphic rock?
Crust
What material is used to form igneous rock?
Magma
True or False: sedimentary rocks are often formed in layers
True
Name the three levels of hardness
Soft, Medium, Hard
Term used to describe how minerals reflect light
luster
What type of rock can turn metamorphic?
Any!
Where can you find igneous rock?
Volcano
Where are the oldest layers of rock usually found in a cliff made from sedimentary rock?
The bottom
True or False: the Moh's scale of hardness is relative
True
What type of rock are fossils most likely to be found in?
Sedimentary
Give an example of where you would find metamorphic rock in your home?
How do igneous rocks turn into sediments?
Weathering and erosion
What percentage of the rocks on the Earth's surface are sedimentary rocks?
75%
What is the hardest mineral?
Diamond
Name 3 physical properties used to classify minerals
color, streak, hardness, tenacity, magnetism, luster
Give 3 examples of metamorphic rocks
Marble, slate, phyllit, gneiss, hornfels, schist, quartzite
Give 3 examples of igneous rocks
Granite, basalt, obsideon, humus, tuff, dacite
Give 3 examples of sedimentary rocks
Shale, sandstone, limestone, siltstone, chert, dolomite, claystone, gypsum
What is the softest mineral?
Talc
What type of minerals are found in metamorphic rocks?
Index minerlas