Environmental science (ES) education is crucial for hands-on investigations and finding solutions to environmental problems. The COVID-19 crisis limits student access to ES experiences, especially for students of color and low-income communities. PBL, with inquiry and authentic challenges, can effectively teach ES, but teachers may need guidance and examples. This book provides practical guidance for teachers and showcases technology-rich, student-centered projects on cross-curricular topics such as endangered animals, oceans, bees, and air quality.