In the Science classroom students will learn about the environmental benefits of composting- reduction of fossil fuel use, reduction of reliance on landfill use leading to a reduction of methane emissions, as well as the chemical processes, often lead by worms, that occur when biodegradable foods and materials break down in soil.

This can be an introduction to Environmental science and Chemistry or provide a deeper connection for high school students.

Creating a working composter requires understanding of measurements and materials. A number of questions can be explored by students in technology and engineering. For instance: how can a composter be constructed to ensure it has enough air-flow? What are the benefits of a horizontal bin versus a vertical one? and so on. Furthermore, a working composter can be planned and constructed in a simple way by using wooden pallets.

Students studying art can think about how to show the importance of eco-friendly activities such as composting through the medium of art and design. This can lead to some specific tasks. Firstly, students could design posters or flyers that show how composting benefits the Earth. Secondly, the compost created by students can be sold with benefits going towards charity. Art students can help to design appropriate packaging, again highlighting the environmentally friendly approach that was taken.

Students can quantify the amount of food waste in America and in their own homes throughout this PBL. By creating their own compost project, they can measure this amount in pounds or tonnes, as well as look at other measurements such as methane emissions reduced through this process.

History: Analyzing how civilizations throughout history have managed food waste. Students compare the pros and cons of each society and how time, and technology has advanced since.

Global Studies: Measuring the contrasts among countries in food waste management.

Health studies: Recording the effects of pollution on various species. The effect of pollution on humans and the effect of anthropomorphic pollution on animals.