Archives
The Atmosphere
Introduction to the Atmosphere (external link)
Geomorphology
2. The World’s Oceans
Oceans cover nearly 71 percent of Earth’s surface. 1. Oceans as sources of oxygen, food and energy. Oxygen: In the process of photosynthesis, phytoplankton release oxygen into the water. Half of the world’s oxygen is produced via phytoplankton photosynthesis. The other half is produced via photosynthesis on land by trees, shrubs, grasses, and other… Read More »
Population
3. Water management in South Africa
1. Rivers, lakes and dams in South Africa. 2. Factors influencing the availability of water in South Africa. The South Africa Department of Water Affairs: https://www.dws.gov.za (external link) Knowing where the bulk of the rainfall in South Africa occurs can help in understanding the position of water masses in South Africa. Look at the… Read More »
4. Floods
Floods – An overflowing of water onto land that is normally dry. 1. Causes of flooding – physical and human. Australian floods – 2010 2. Characteristics of floods – analysis and interpretation of flood hydrographs. 3. Managing flooding in urban, rural and informal settlement areas. This is a great website on managing… Read More »
Water in the World
Grade 10 CAPS
1 Changes in Energy balance
The Atmosphere Definition: The body of air and gas surrounding the Earth. Barometer and air pressure Factors responsible for atmospheric pressure differences Temperature Humidity Altitude Global pressure belts Origin of high and low pressure cells Please note the following YouTube video is for the NORTHERN HEMISPHERE! The relationship between air pressure and wind Wind is… Read More »