Mechanical weathering Ice-wedging, freeze thaw Chemical weathering 1. What type of weathering caused the rock to break? 2. What type of weathering caused the formation of the stalactites and the stalagmites? Mechanical weathering Ice-wedging, freeze thaw Chemical weathering Rock chemically changing 3. What type of weathering caused the rocks to break? What is happening in the picture? How can you prevent this? Mechanical weathering Tree root getting bigger Mechanical weathering, Wind erosion Planting trees

Definition Vocabulary Word 1 Breaks down rock and changes the rock composition 2 The movement of rock materials 3 Rain or snow containing high concentration of acids 4 The material that causes the Most amount or weathering 5 Breaking down rock without changing the composition 6 Acids produced by lichens breaking down rock 7 Water freezing and thawing to break rocks 8 Iron becoming rust 9 Breaking down rock into smaller pieces 10 The force(s) that causes erosion Weathering Chemical weathering Mechanical weathering Erosion Chemical weathering Acid precipitation Physical weathering Water Erosion Mechanical/Physical weathering Acid precipitation Chemical weathering Gravity Wind Ice wedging Water Chemical weathering Ice Weathering Ice wedging Wind, Water, Ice, Gravity

Example Definition Vocabulary Word Weathering Vocabulary Writing on mini white board I give the definition, you write the vocabulary word on the mini-board. Example Definition Vocabulary Word 1 The process of breaking rocks into smaller pieces. Weathering

Definition Vocabulary Word Mechanical weathering 2 Definition Vocabulary Word Breaking down rock without changing the rock composition Mechanical weathering

Rain or snow that contains high concentration of acids 3 Definition Vocabulary Word Rain or snow that contains high concentration of acids Acid Precipitation

The movement of rock particles from one place to another 4 Definition Vocabulary Word The movement of rock particles from one place to another Erosion

Water freezing and expanding to break rock 5 Definition Vocabulary Word Water freezing and expanding to break rock Ice wedging or Freeze-thaw

Breaking down rock by chemically changing the rock composition 6 Definition Vocabulary Word Breaking down rock by chemically changing the rock composition Chemical weathering

Iron becoming rust is an example of this type of weathering 7 Definition Vocabulary Word Iron becoming rust is an example of this type of weathering Chemical weathering

The thing that causes the greatest amount of weathering and erosion 8 Definition Vocabulary Word The thing that causes the greatest amount of weathering and erosion Water

Definition Vocabulary Word Chemical weathering 9 Definition Vocabulary Word Acids produced by lichens to break down rock is an example of this type of weathering Chemical weathering

The forces that can cause weathering and/or erosion 10 Definition Vocabulary Word The forces that can cause weathering and/or erosion Wind, Water, Ice, Gravity

Chemical Weathering Mechanical Weathering or Ch M Look at each picture and decide if it is an example or chemical weathering or mechanical weathering Ch Chemical Use white board: And write M Mechanical

Chemical Weathering Mechanical Weathering or Ice Wedging

The rocks have changed to Stalagmites and Stalactites Chemical Weathering Mechanical Weathering or Stalactites Stalagmites The rocks have changed to Stalagmites and Stalactites

Chemical Weathering Mechanical Weathering or Ice Wedging

The iron in the soil is rusting (changing) Chemical Weathering Mechanical Weathering or The iron in the soil is rusting (changing)

Chemical Weathering Mechanical Weathering or Tree roots expanding

The iron nails are rusting (changing) Chemical Weathering Mechanical Weathering or The iron nails are rusting (changing)

“Dust Bowl” Wind weathering and erosion Chemical Weathering Mechanical Weathering or “Dust Bowl” Wind weathering and erosion

“Lichens” growing on the rock and changing the surface Chemical Weathering Mechanical Weathering or Brown area “Lichens” growing on the rock and changing the surface

Both chemical and mechanical: Tree roots, water, acid, everything Weathering Mechanical Weathering or Both chemical and mechanical: Tree roots, water, acid, everything

The metal is rusting (changing) Chemical Weathering Mechanical Weathering or The metal is rusting (changing)