Curated OER
Sunspots and the Sun's Rotation
In this sun worksheet, students use a Sunspotter to observe the rotation of the sun by identifying the presence of sunspots and watching them rotate over time. Students calculate how many days it takes to see the sunspots they observe in...
NASA
Nasa: The Sun
An introduction to the Sun including its size and distance from the Earth, sunspots, flares and coronal mass ejections.