Igneous Rock
What do we call lava that is still under the earth?
Magma
What is required to happen to existing rocks to turn them into sediment?
Weathering
Metamorphic rocks are formed but what?
Heat and pressure
The three types of rock in the rock cycle
Igneous, sedimentary and metamorphic
Sediments form what type of rock?
Sedimentary rock
Liquid rocks or minerals are called
Molten rock
What is sedimentary rock made up of?
Sediments
What types of rocks can become metamorphic?
Igneous and sedimentary
A rock that was magma and cooled inside a volcano is this type of rock
Igneous
"Made from sediment" is the definition for what word?
Sedimentary
Crystal size in igneous rock is determined by?
Cooling time, depth of cooling etc.
What is the name for the movement of sediment
Erosion
Sandstone becomes slate following what forces?
Excessive heat and pressure cause this type of rock to form
Metamorphic rock
The word "morph" was used to name metamorphic rock. Why is this?
Because rocks change into metamorphic rock
Igneous rocks can be classified into two groups
Intrusive (plutonic) and extrusive (volcanic)
After weathering and erosion, what two steps are required for a sedimentary rock to form?
Compaction and cementation
Name a property of metamorphic rock that would make it ideal for buildings?
Strong and durable, dense
Rocks on the surface get pushed into the earth's core by what force?
Pressure
This word means "produced from fire"
Igneous
Give an example of an igneous rock that is trapped underneath the earth
Granite etc.
This sedimentary rock is made from dead leaves and organic matter compressed over many years
Coal
Name the type of metamorphic rocks that contain warped layers?
Foliated
Which types of rock can become sediment by weathering and erosion?
All three rock types
Some metamorphic rocks are foliated. What does this mean?