How do rocks change into metamorphic rocks?
Heat and pressure.
True or False — every rock must become sedimentary before turning into a metamorphic rock. Explain.
: False — any rock type can change directly into another type depending on conditions.
2 examples of Sedimenary Rock
Teacher will confirm
We know we can find crystals in igneous rock but what is another property?
What are gas bubbles?
Why might fossils only be found in sedimentary rocks and not in igneous or metamorphic rocks?
Because the heat and pressure in igneous and metamorphic formation would destroy fossils, while sedimentary rock forms at Earth’s surface under gentle conditions.
Layers and layers of sedimentary rock.
What are strata?
Metamorphic rocks are only exposed due to...
What is weathering & erosion?
What determines the size of crystals in an igneous rock
The rate of cooling
What process must happen for any rock type to become igneous again?
It must melt into magma and then cool.