Earth's rotations and revolutions
These two short online tutorials discuss how the earth rotates and then the earth's revolutions.
These two short online tutorials discuss how the earth rotates and then the earth's revolutions.
In the first URL, the YouTube video explains why earth has spring, summer, autumn and winter seasons. The second URL summarizes the key takeaway points.
In this course you will learn how to:
Three activities which illustrate the law of exponents.
This is a simple video which describes how indices problems are solved using simplified laws.
Online problems where the student is required to simplify the expression using the product property of exponents.
An activity explaining the properties of exponents.
This YouTube video explains how river basins are formed.
This YouTube documentary highlights the ecological and socio-economic importance of the Tana River Basin in Kenya.
This 32 minute long YouTube video investigates the water contamination problems in Tanzania, with specific focus on Dar Es Salaam.