Students were shown different materials buried in a ‘see-through compost container’. The materials in the container were - a banana skin, plastic knife and paper egg carton. Students then engaged in a discussion about how long it would take the different materials to rot. The students then conducted their own investigation. Students chose one material either; fruit or vegetable scrap, plastic, paper or Chux cloth. Students placed their material in the bottom of a round take away container then covered the material with potting mix. A few weeks later the students uncovered their material and recorded their findings on the worksheet.