Transcript What are the Factors that Affect the Rate of Weathering?

What are the Factors that Affect
the Rate of Weathering?
Does sugar dissolve faster in ice
coffee or hot coffee?
Climate
Variable temperatures
(above freezing to below
freezing) and Wet
• Physical/ mechanical
weathering
• As temps change btn below
and above freezing ice
wedging can occur
Warm and Wet (Moist)
• Warm water will dissolve
minerals faster than cool
water.
Cleopatra’s Needle
Egypt
NYC –
central park
Rock Resistance
• Which layer was the
least resistant to
weathering?
• Which was most
resistant?
• Harder minerals and
rocks are more resistant
and the rocks will
weather less.
• Softer minerals and
rocks weather faster
Surface Area
• Are your hands warmer
in mittens or gloves?
• Hands are warmer in
mittens because less
surface area is exposed
to the air.
• Ms V has a nice cup of
yummy coffee, she wants to
add sugar before drinking it,
but she NEEDS to drink it
ASAP!!
• Should she use a sugar cube
or spoon of granulated
sugar?
Surface Area
• As particle size
decreases surface area
increases.
• SMALLER PARTICLES
DISSOLVE FASTER
• As surface area
increases the rate of
weathering increases
Pollution
• Pollution increases the
amounts of acids in the
air and this will increase
the amount of chemical
weathering.