Grade 6 Social Studies Natural And Built Environmemt – Main Physical Features In Eastern Africa Notes
Social Studies — Natural and Built Environment
Subtopic: Main Physical Features in Eastern Africa (for age 11)
In Eastern Africa we find many natural landforms and water bodies. These physical features shape how people live, farm, travel and build towns. Below are the main features, simple meanings, examples (with Kenyan examples), and why they are important.
Mountains
Tall rocky places. Ex: Mount Kenya (Kenya), Kilimanjaro (Tanzania).
Rift Valley
A long crack/low area in the Earth. Example: Great Rift Valley runs through Kenya.
Lakes
Large inland water. Examples: Lake Turkana, part of Lake Victoria (Kenya), Lake Nakuru.
Rivers
Flows of water. Example: Tana River (longest in Kenya), Ewaso Ng'iro.
Coast & Islands
Sandy beaches and islands. Example: Mombasa coast, Lamu, Pemba and Zanzibar nearby.
Plains & Savannahs
Flat grasslands for wildlife. Near Kenya: Maasai plains (Masai Mara area).
Main physical features explained
- Mountains and highlands — High, often rocky places. They give water (rivers start here), cooler climate and forests. In Kenya: Mount Kenya and the Aberdares.
- The Great Rift Valley — A long valley made when the Earth's crust pulled apart. It has lakes (some salty), cliffs (escarpments) and rich soils. Many towns and farms are near it.
- Lakes — Important for fishing, transport and tourism. Kenya has Lake Turkana (north), parts of Lake Victoria (west), and several Rift Valley lakes like Nakuru and Bogoria.
- Rivers — Provide water for people, animals and crops. The Tana River is Kenya's longest. Rivers are used for irrigation and some have hydroelectric dams.
- Coast and islands — The Indian Ocean coast has beaches, ports (Mombasa) and islands (Lamu). Fishing, tourism and trade are important here.
- Plains, savannahs and grasslands — Good for grazing livestock and wildlife parks. People herd cattle, goats or sheep on these lands.
- Forests and highland woodlands — Provide wood, water catchment and habitats (Kakamega forest, Mount Kenya forests).
- Deserts and drylands — Some northern parts are dry (Chalbi Desert). People may be pastoralists who move to find water and pasture.
- Wetlands and swamps — Help store water, support birds and fish (e.g., Yala Swamp on Lake Victoria).
Why these features are important
- Provide water for drinking, farming and electricity (hydropower).
- Support farming, fishing and livestock keeping — food and jobs.
- Help tourism (mountains, lakes, wildlife and beaches attract visitors).
- Improve trade — ports on the coast move goods to other countries.
- Shape how people build houses, roads and towns (the built environment).
Problems and how people help
- Deforestation (cutting forests) causes less water and soil erosion. People plant trees and protect forests.
- Droughts make water scarce. People build water pans, wells and small dams.
- Pollution of rivers and lakes harms fish. Communities and officials run clean-up and water management plans.
Simple map activity (class/group)
On a map of Eastern Africa (or Kenya):
- Find and label: Mount Kenya, Great Rift Valley, Lake Turkana, Lake Victoria (Kenyan shore), Tana River, Mombasa coast and Lamu.
- Draw a star where people might build a town (near a river or on the coast) and explain why.
Quick quiz (check your learning)
- Give one example of a mountain in Kenya. (Answer: Mount Kenya)
- What is the name of the long valley that runs through Kenya? (Answer: Great Rift Valley)
- Name one use of rivers for people. (Answer: drinking water, irrigation, hydroelectric power, fishing)
Teacher note: Use pictures or a classroom map to show students these features. A short field trip to a local river, hill or coast (if possible) helps learners connect the notes to real places.
Created for Kenyan learners (age 11). Content connects physical features to how people live and to the built environment (towns, farms, ports, dams).