Download Types of Weathering Agent of Weathering Type of Weathering What

Types of Weathering
Agent of
Weathering
Air
(Oxidation)
Type of
Weathering
Chemical
Weak Acids-
Chemical
Secretes a weak
acid that breaks
down the rock
Water
(Acid precipitation)
Chemical
Forms when fossil
fuels are burnt
creating pollution
Plants
Mechanical
Plant roots looking
for water and
nutrients break
down the rock
Ice
(Ice Wedging)
Mechanical
Water acts as a
wedge by freezing
and thawing to
break the rock
Water, Wind, Gravity
Mechanical
The scraping or
grinding of rock on
another rock to
break it down
(Living things- lichen)
(Abrasion)
What happens??
Iron interacts with
oxygen and water
Picture
Name__________________________
Weathering (in more detail)
Instructions: Use pages 278-283 in the book to fill in the information below
related to weathering. Then use the same pages to fill in the chart on the back.
Weathering: the process by which rock materials are _broken__________ down
by the action of _physical__ (mechanical) or chemical processes.
 Mechanical weathering: the breakdown of rock into smaller
_pieces______________ by ___physical_____________ means
o The agents or causes of mechanical weathering include
____ice_______, _____wind____, _____water__________, gravity,
_____plants________and even ___animals______________.
 Chemical Weathering: the process by which rocks ___breaks____ down as
a result of __chemical_____________ reactions.
o Common agents or causes of chemical weathering are
__water_______, weak __acids________, and _air___