Galileo used his telescope to gather data about the heavens, and his observations and theories sparked much controversy. This video segment discusses Galileo's observations of sunspots, which challenged the current...
This lesson allows students plot the percentage of high energy, x-ray solar flares over several years to discover that the solar cycle of sunspot activity is also a cycle of solar flares.
Exploring Magnetism in Solar Flares is part of a series of guides highlighting the importance of magnetism in Earth and space sciences. It contains four activities exploring solar flares while addressing science, math,...
Students measure sunspot speeds and shapes across the solar disk to determine whether the spots are on the Sun or are planets revolving around it (Galileo's dilemma). Includes links to hands-on demonstration of concepts.
In this activity students are asked to interpret a graph that represents the sunspot cycle from 1900 to 1990, then they are asked to graph the number of sunspots that occurred from 1995 to 2003 in order to understand...
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