what is the rock cycle
a series of processes that cause rocks to transform from one type to another over time
how is igneous rock formed
igneous rock is formed when volcanoes erupt and lava/molten rock cools
how is sedimentary rock formed
Sedimentary rock is formed through the accumulation, compaction, and cementation of sediments over millions of years
how is metamorphic rock formed
Metamorphic rock is formed when existing igneous, sedimentary, or even older metamorphic rocks are transformed by intense heat and pressure, and sometimes chemically active fluids, deep within the Earth’s crust
does the amount of rock change on Earth change
since rocks never leave the cycle, the amount of rock never changes
Are all rocks the same
no rocks are the same since they vary in age, appearance, texture and hardness
