Cambridge IGCSE Agriculture
2.2Soil types, composition, texture and temperature
Soil types, composition, texture and temperature in Cambridge IGCSE Agriculture: what the syllabus expects you to know, the learning objectives and how to practise.
Subtopic77 practice questions4 lessons
Learning objectives
What the syllabus expects you to be able to do.
- 2.2(a)Describe the soil profile: topsoil, subsoil and underlying material.
- 2.2(b)Describe soil texture in terms of sand, silt and clay particle sizes.
- 2.2(c)Understand soil structure: forming and keeping a good crumb structure, the role of humus and organic matter, and how oxidation of organic matter leads to capping and soil pans.
- 2.2(d)Describe sandy, loam and clay soils and their properties, including water-holding capacity and drainage.
- 2.2(e)Outline soil constituents: mineral matter, organic matter, air, water (gravitational, capillary, hygroscopic) and living organisms.
- 2.2(f)Understand how soil temperature affects plant growth, the dangers of excessive heat and frost, and how mulching and shading reduce extremes.
Lessons
- Full access
Soil constituents, soil water and soil organisms
35 min
- Full access
Soil temperature and how farmers modify it
25 min
- Full access
Soil texture and soil structure
35 min
- Full access
Soil types: sandy, loam and clay soils
30 min
Join to read every lesson, or see what Full access includes.
Sample question
A sample question on this topic. Answer it, check it, then read the worked answer.
Turn Soil types, composition, texture and temperature into a strength.
Practise with instant marking, see your mastery grow and get a study plan built around your exam date.