Hit them really hard with a mallet/hammer
The water can get inside and then freeze which in turn cracks the rocks open.
What are you talking about?
cracks open wider
10:00pm
cracks open wider
open it up and go into the rock.
When the second bus rocks up.
To blast open the rocks at the cave in 831 AD (Vikings), there is a barrel of gunpowder at the Great Wall of China (1593 AD). It is at the lower right side. When you take it to the cave, click on the rocks to explode the barrel from your items.
It breaks open rocks (erosion)
As birds have no teeth they swallow pebbles to use in their gizzards as grinders. Seals and sea lions will swallow rocks to use as ballast. Sea otters will use rocks as bashers to open up sea urchins and the like. Gull and Crows will drop nuts and shells on rocks to break them open.
to break off samples of rocks or to break open a rock.
Sedimentary rocks tend to be more porous than igneous rocks because there is more open space between the individual sediment grains than between the minerals in a crystallized rock.