The U.S. Plastics Pact (USPP) recently released a position paper outlining the role of physical and chemical recycling in a circular economy, offering what it says is science-based, consensus-driven ...

Introduction Have you ever visited a canyon or cave and wondered how those formations came to be? Or observed smooth stones by a river or beach? These results are due to a process called weathering.

What’s out there? It’s a question humans have been asking for as long as there have been humans. Our ancestors struck out across continents and oceans to make the unknown known. Now, we’re using ...

Note: This video is designed to help the teacher better understand the lesson and is NOT intended to be shown to students. It includes observations and conclusions that students are meant to make on ...