This is a unit on the Sun that includes a step by step investigation for the younger student to understand our place in the solar system, using relative size and scaling, rotation and revolution and a number of assessment tools. The individual lessons contain work sheets to give on-going feedback on student comprehension.
The Galileo Project is a source of information on the life and work of Galileo Galilei (1564-1642). Our aim is to provide hypertextual information about Galileo and the science of his time to viewers of all ages and levels of expertise.
A major solar 'superstorm' such as the one in 1859 could cost $30 billion a day to the US electrical power grid, and up to $70 billion to the satellite industry.