Show:
Fossils
Igneous Rocks
Sedimentary Rocks
Metamorphic
100
a footprint is what type of fossil?
Trace Fossil
100
formed when magma solidifies
Igneous Rock
100
sediments are held together in the process of...
cementation
100
when any rock undergoes heat and pressure it becomes...
metamorphic rock
200
Fossils are commonly found in this type of rock
Sedimentary
200
a large grained igneous rock
intrusive
200
when sediments are smashed together
compaction
200
how many rock types can become metamorphic?
three
300
a leg, wing, or arm that is used to determine ancestry
limb
300
where extrusive igneous rocks are formed
above Earth
300
the 4 steps to make a sedimentary rock are...
weathering, erosion, cementation, compaction
300
the least common rock type is...
metamorphic
400
a type of fossile, like an insect in amber
original remain
400
when an igneous rock is melted and it cooled it becomes this
igneous rock
400
the organic part of soil is called...
humus
400
when a rock is heated and allows the mineral grains to enlarge it becomes...
non-foliated
500
a type of fossil that was never part of an organism
Trace Fossil
500
a small grained igneous rock is called this
extrusive
500
a loose mixture of small rocks and organic material
soil
500
when minerals in a rock line up because of heat and pressure
foliated