Chemical Weathering

Look at each picture and decide if it is an example or chemical weathering or

mechanical weathering

Chemical Weathering

MechanicalWeatheringor

Use white board:

And write

Ch Chemical

M Mechanical

Ice Wedging

Chemical Weathering

MechanicalWeatheringor

The rocks have changed to Stalagmites and Stalactites

Chemical Weathering

MechanicalWeatheringor

Stalactites

Stalagmites

Ice Wedging

Chemical Weathering

MechanicalWeatheringor

The iron in the soil is rusting (changing)

Chemical Weathering

MechanicalWeatheringor

Tree roots expanding

Chemical Weathering

MechanicalWeatheringor

The iron nails are rusting (changing)

Chemical Weathering

MechanicalWeatheringor

“Dust Bowl” Wind weathering and erosion

Chemical Weathering

MechanicalWeatheringor

“Lichens” growing on the rock and changing the surface

Chemical Weathering

MechanicalWeatheringor

Brown area

Both chemical and mechanical:Tree roots, water, acid,

everything

Chemical Weathering

MechanicalWeatheringor

The metal is rusting (changing)

Chemical Weathering

MechanicalWeatheringor