Students examine and identify biodegradable and non-biodegradable materials. They discover ways in which biodegradable materials can help minimize pollution.

Fourth graders identify recyclable materials in an experiment. They discover how to properly dispose of these items. They discover how to use materials again that cannot be recycled.

Students explore the impact on waste on the environment, and the impact of the 3R's (reduce, reuse and recycle) as a means of diminishing the waste created by humans.

Young scholars create a mini-version of a landfill. They examine the materials they use everyday and determine if they decompose or not. They identify the materials as renewable or nonrenewable as well.

Fourth graders discuss the concept of reduce, reuse and recycle. They identify products in their homes that are hazardous and discover alternatives to them. They examine the inventory of other classmates hazardous materials.