Rocks produced when pieces of other rocks, plant and animal matter, or dissolved minerals collect to form rock layers are called __________ rocks.
sedimentary
100
The ______________ shows how rocks are recycled from one type to another
rock cycle
100
Name 3 characteristics of rocks
answers can be: color, size, shape, luster, streak color, etc
100
The term __________ ______ refers to rocks that are produced when melted rock from inside the Earth cools and hardens on or under Earth's surface
igneous rock
100
Rocks formed when older rocks are heated and/or squeezed are called __________
metamorphic rock
200
Broken pieces of rock are deposited into piles and are cemented together by other minerals. What type of rock has been formed?
sedimentary
200
According to the rock cycle, name two ways metamorphic rock can be formed
heated or squeezed
200
What is luster?
Luster describes how shiny or dull a rock is
200
Igneous rocks that form when lava cools under the crust inside Earth, rather than on the surface, are called ______________ igneous rock
intrusive
200
_______________ metamorphic rocks, such a quartzite, marble, and soapstone, do not have distinct layers or bands
Nonfoliated
300
Sedimentary ___________ rocks are made of grains from minerals or other rocks that have moved and been deposited in layers
Detrital
300
Which can occur in the rock cycle?
A- sedimentary rock is eroded to form igenous rock
B- igneous rock is eroded to form metamorphic rock
C- metamorphic rock melts to form sedimentary rock
D- sedimentary rock is heated and squeezed to form metamorphic rock
D- sedimentary rock is heated and squeezed to form metamorphic rock
300
Minerals that can be cut and polished, giving them a beautiful appearance, are called
gems
300
The chemicals in the melted rock determine the _______ of the resulting rock.
color
300
Metamorphic rocks that have distinct bands of minerals that have been heated and squeezed into parallel layers are called ____________ rocks
foliated
400
_______________ rocks form from evaporation of seawater or from other chemical processes
Chemical
400
The rock cycle
A- stopped millions of years ago
B- stops for a while and then starts again
C- is happening all the time
D- just recently began
C- is happening all the time
400
A mineral is called a _______ if it contains something that can be useful and sold
ore
400
Igneous rocks that form when lava cools on Earth's surface are called _____________ igneous rocks
extrusive
400
The word metamorphic means
"change of form"
500
True or False: sedimentary rock can be made from lava or magma
False
500
What is one substance that is hot enough to melt metamorphic rock?
magma
500
Explain the Mohs Scale.
The Mohs Scale classifies minerals from 1 (softest) to 10 (hardest). You can determine hardness by scratching rocks against each other.
500
Name the two types of igneous rock
granitic and basaltic
500
Name a type of a nonfoliated rock
answers can be: quartzite, marble, soapstone, etc.