When it comes to the carbon cycle, the sky really is the limit. The lesson begins with observing a closed ecosystem in a bottle. Then, scholars discuss and answer questions on the carbon dioxide and oxygen cycles. 

Fifth graders identify how a pond can change into a grassland. An ecosystems lesson where learners identify pioneer and climax species, and recognize that ecological succession can take up to 100 years or more. Some excellent activities...

Take young naturalists on an exploration of the world's tropical rainforests with this extensive collection of lessons and activities. Whether its creating leaf and flower prints or investigating the absorption spectrum of...

Fifth graders engage in some activities that will help them to identify erosion and explain the causes of erosion. They also look into ways that humans can slow the process of erosion in some cases. After a teacher-led demonstration,...

Fifth graders study the impact of human activity on water quality and on the ecosystems of Earth. After a discussion on the various ways that water can be polluted, groups of youngsters get together to figure out the best way to clean a...

Investigate the different types of pollution that storm drain runoff carries into oceans, lakes, rivers, and streams with this class demonstration. Using an aquarium and an assortment of everyday items that contaminants like motor oil,...