Type 1
breaking down rocks
what is weathering?
my difference then physical weathering
what do you consider the changing of chemical weathering of the composition of the rock?
By causing cracks in rocks to widen with repeated cycles of freezing and thawing
what is Ice wedging, or frost wedging?
the process by which chemicals in rock combine with oxygen in the air or in water.
what is oxidation
weathering increases when it increases
what is the relationship between surface area and weathering
I change the appearance of the rocks only?
what do physical weathering do?
happens faster
does chemical weathering happen faster or slower when acids mixed with rain?
the process by which the outer layers of rock slowly peel away due to pressure changes
what is exfoliation?
because the rocks change their color
how did you know oxidation is a chemical reaction
by causing them to expand and contract
how do temperature changes weather rocks
I have 6 agents
how many agents do physical weathering have?
I have 2 agents
how many agents do chemical weathering have
allowing more rock to be exposed.
how do animal actions do physical weathering?
occurs when strong acids fall to Earth as rain, sleet, or snow.
what is acid precipitation
agents of abrasion
what is wind, water, and gravity
sand and soil
what do physical weathering produce
I'm an interaction between hydrosphere and geosphere
chemical weathering by acid precipitation is an interaction between which spheres?
the breaking down and wearing away of rock material by the mechanical action of other rocks.
what is Abrasion?
Stalactites and stalagmites
what do chemical weathering by acid groundwater produce?
rock can become rounded and smooth
what is the result of abrasion by water
a long time
How long it will take for physical weathering to happen?
because temperature increase the rate of chemical reactions
why chemical weathering rate is highest in the summer?
part of plants start out as tiny strands that may grow in small cracks in rocks.
how roots and physical weathering are related?
they produce weak acids that can weather the rock’s surface
how do lichens and mosses weather rocks
natural rain
what is slightly acidic?