This project and its actions were made possible due to co-financing by the European Fund for the Integration of Third-Country Nationals Rocks Subject(s):Geography, Science Age group(s): 12–14, 15–16 Topic:Rocks cycle vocabulary EAL Nexus resource Licence information | This resource is free to use for educational purposes. © British Council 2014 Source | This resource was originally developed by Nerissa Lea and has been adapted by EAL Nexus.
rock cycle
The repeated breaking and building of rocks
a volcano
a mountain that may erupt
molten rock
hot liquid rock lava magma
molten rock above ground a mixture of molten or semi- molten rock underground
cracks
fractures
a dike
a vertical crack filled with magma
a sill
a horizontal crack filled with magma
crystals
the solidification of a substance
sediment
small particle of rock
Sedimentary rock
rock formed from sediment
fossils
evidence of living things preserved in rocks
Igneous rock
rock formed when magma cools
metamorphic rock
rock changed by heat or pressure
freeze thaw
repeated freezing and thawing of water
expansion or contraction
growth or shrinkage caused by heating and cooling of rocks
weathering
physical and chemical breakdown of rocks
erosion
the movement of weathered rock
to crumble
to disintegrate, fall apart
brittle
can be broken up easily
scree
sharp fragments of loose rock on mountain slopes
texture
the appearance and feel of a substance