This document contains summaries of units by Jorge Ferrer and Joscar Paz. Jorge Ferrer's units discuss change on Earth through earthquakes and tsunamis, heroes who protect nature and wildlife, and memories of the 1967 Caracas earthquake. Joscar Paz's units cover keeping Earth healthy through reducing pollution, talents of generating oxygen and life, and the documentary "Life" explaining nature and Earth's processes. Both provide reflections on learning vocabulary, grammar, and information about their respective topics.