1. Mechanical Weathering
- Freeze-Thaw (Frost Wedging)
- Thermal Expansion & Contraction
- Exfoliation (Sheeting)
- Biological Activity (Root Wedging)
- Abrasion
2. Chemical Weathering
- Hydrolysis
- Oxidation
- Carbonation
- Dissolution (Solution)
- Hydration
3. Complete the following sentences using the terms listed below:
- Oxygen → Oxidation
- Chemical Composition → Chemical Weathering
- Climate → Temperature and moisture levels affect weathering rates
- Water → Hydrolysis and dissolution
- Acid Rain → Accelerates chemical weathering, especially of limestone and marble
4. The following factors can change the rate at which rocks weather:
- Surface Area (more exposed surface = faster weathering)
- Rock Type (mineral composition affects susceptibility)
- Climate (temperature and precipitation influence chemical vs. mechanical processes)
- Topography (slope and drainage affect water exposure and erosion)
- Biological Activity (roots, lichens, burrowing animals)
Parent Tip: Review the logic above to help your child master the concept of chemical and mechanical weathering worksheet.
