Website from Global Learning and Observations to Benefit the Environment (GLOBE) Program with comprehensive learning and field study resources on the biosphere in which students use materials and data to make observations and learn about...

While the Earth's oceans are known as five separate entities, there is really only one ocean. So, how big is it? As of 2013, it takes up 71% of the Earth, houses 99% of the biosphere, and contains some of Earth's grandest geological...