Download Rock Cycle - Effingham County Schools

Rock Cycle
Three major types of rocks:
1. Igneous
2. Sedimentary
3. Metamorphic
Two types of Igneous:
1. Intrusive
2. Extrusive
How are sedimentary rocks
formed?
cementation
compaction
How are metamorphic rocks
formed?
heat
pressure
The Rock Cycle
• Rocks at the Earth’s surface weather,
forming sediments that are buried. These
sediments are compacted, heated, and
often recrystallized into new rock.
• The rock cycle explains how one rock type
can be transformed into another.
• The Rock Cycle is continuous; it never
ends.
• Any rock type can undergo weathering to
form sediment.
• Igneous, metamorphic and sedimentary
rocks undergo weathering.
• The beginning of the rock cycle is not
possible to identify because it is a never
ending cycle.
The Rock Cycle
Igneous
metamorphic
Sedimentary
Rocks can change into other
rocks! The stuff that rocks are
made from stays the same, but
the rocks do not. Over time
rocks are recycled into new
rocks. Earth continually
recycles rocks!!!