This textbook chapter describes how the Earth is unevenly heated by the Sun, and the role this plays in determining the Earth’s seasons, global winds, and weather events such as storms and tornados. The resource includes a demonstration model of... (View More) the uneven heating of the Earth's surface and links to current news articles, and a suite of pre- and post-unit assessments. A teacher's guide supports classroom use. This is the seventh chapter in the unit, Energy Flow, exploring the transfer of energy through the atmosphere, oceans, land, and living things over short and long timescales. The resource is part of Global System Science (GSS), an interdisciplinary course for high school students that emphasizes how scientists from a wide variety of fields work together to understand significant problems of global impact. (View Less)

This textbook chapter describes the processes through which El Niño and La Niña conditions emerge. The resource includes an animation of ocean currents, and links to current news articles, and a suite of pre- and post-unit assessments. A teacher's... (View More) guide supports classroom use. This is the eighth chapter in the unit, Energy Flow, exploring the transfer of energy between the atmosphere, oceans, land, and living things over short and long timescales. The resource is part of Global System Science (GSS), an interdisciplinary course for high school students that emphasizes how scientists from a wide variety of fields work together to understand significant problems of global impact. (View Less)