Virtual Race to Decomposition


Make It Happen

1.2 million students spend their days in K-12 schools across Washington State. You can ensure they gain the skills and hands-on learning opportunities needed to be successful leaders. Our state depends upon the next generation… And Washington Green Schools is working with you to give them the tools they need to succeed.

What makes an apple core decompose? To find out join WGS’ “Race to Decomposition” – a simple investigation using everyday materials from home. Through weekly online lessons, we’ll race against time and explore factors that affect decomposition.

Download the Race to Decomposition Instructional Guide as a pdf

Race to Decomposition: Part 1

Materials List:

  • Soil (not potting soil)
  • A clear container with a lid (can be plastic or glass)
  • A piece of organic material (apple, banana, bread, etc.)
  • Any other materials that you would like to add to your jar to help speed up decomposition
  • A notebook or piece of paper (for sketching and observation notes)
  • A pen or pencil

Video Notes:

  • Shannon uses a slice of apple in her jar but any piece of organic material (see materials list for ideas) you have in your home will work.
  • Shannon uses a small glass jar, but any clear container (plastic or glass) that has a lid can be used.

Race to Decomposition: Part 2

Race to Decomposition: Part 3

Race to Decomposition: Part 4