The document discusses the processes of rock weathering including physical, chemical, and biological weathering. It describes how different factors like climate, rock type, topography, vegetation, and human activities influence the rate of rock weathering. The main weathering processes gradually breakdown and decompose rocks at the surface, producing sediments and resulting in lower topography over long periods of time.

1. The Wonderful World of Rock Weathering Mdm Masayu Mahmud Department of Humanities Innova Junior College, Singapore

2. What geologic processes causes these rocks to weather?

3. Dairy Farm Estate Granite Outcrop, Singapore

4. Describe this landform

14. Products of Weathering Type of weathering Product of weathering and erosion Type of sediment ultimately deposited Mechanical weathering Fragments containing the same minerals as the original rock (e.g. grains of quartz from a granite) Clastic sediments and sedimentary rocks (e.g. sand and sandstone) Chemical weathering New solid mineral particles formed by chemical reactions during weathering (e.g. Clay minerals) Material dissolved in water (e.g. Calcium ions) Chemical and biological sediments (e.g. limestone and rock salt)

19. Jointed Structures

21. Jointing in Granite

27. Boulder fields

28. Exfoliated Rocks and Spheroidal Boulders

29. Lateritic Soil A Laterite soil cross section in Brazil. The deep red color is due to Fe 3+ hydroxide minerals in the soil.