December 28, 2020 | By Project Learning Tree
Using data collected from Mauna Loa, students graph changes in atmospheric levels of carbon dioxide (CO2) over the course of several decades and identify possible reasons for those changes.
December 28, 2020 | By Project Learning Tree
Students model what happens to renewable and nonrenewable resources over time and discover why sustainable use of natural resources is so important.
December 28, 2020 | By Project Learning Tree
By examining trash, students can learn a lot about how and why they throw things away. Students find ways to reduce their community’s waste production and improve its management through participation in a service-learning project.
December 28, 2020 | By Project Learning Tree
The energy we use at home, school, or work enhances our lives, but it also often contributes to air and water pollution, wildlife and habitat loss, and climate change.