volcanoes are made of?
basalt.
granite.
rocks are little grains.
that grains are made of minerals.
the wind can blow tiny _____ of _____ against a rock.
A) drops of water _ sand.
B) grains _ sand.
C) rocks _ sand.
the wind can blow tiny grains of sand against a rock.
B)
what is erosion.
Erosion is the movement of the broken pieces away from the site of weathering.
Sedimentary Rocks.
Chalk Sandstone Limestone Shale Conglomerate.
2 types of rocks that can be weathered.
limestone and chalk.
limestone and chalk are made of?
a mineral called calcium carbonate.
when a rock gets hot it expands .
when a rock gets cold it contracts.
sedimentary rocks and metamorphic rocks.
1
2
3
4
5
6
limestone.
marble.
quartzite.
sandstone.
slate.
shale.
wind
rain
waves