This resource explores winter weather and frozen precipitation. The page on precipitation points out that snow and rain are both water and explains how the different forms of frozen precipitation (snow, sleet, freezing rain) occur. There is a page on cirrus clouds that explains their characterstics and how they may affect climate by reflecting solar radiation or reducing outgoing infrared energy from ... Full description.

This section of the Windows to the Universe web site provides information and images about Earth's atmosphere including detailed information about the layers of Earth's atmosphere, the greenhouse effect, and weather. Windows to the Universe is a user-friendly learning system pertaining to the Earth and Space sciences. The objective of this project is to develop an innovative and engaging web site ... Full description.

This section of the Windows to the Universe web site provides information and images about the Sun including detailed information about stars, the solar interior, sunspots, solar activity, the photosphere, the chromosphere, the corona, eclipses, the solar cycle, coronal mass ejection, and myths about the Sun. Windows to the Universe is a user-friendly learning system pertaining to the Earth and Space ... Full description.