Activity 2.1 - Tracing waste

• get pupils interested in waste-related issues,
• discuss the issue of produced waste from environmental point of view,
• look for possibilities of waste disposal,
• think about resolubility of waste,
• try to understand the significance of recycling as the only and effective alternative of waste disposal.

• one worksheet per group

Pupils work in groups and use worksheets in their research. They look up the information on the Internet.

In the first part, the worksheet uses the method of comparing the length of human life with that of decomposition of some materials. Pupils find out that during their lives about half the materials would decompose.

The tasks in the second part of the worksheet do not concern the time of decomposition but study the influence of the substances released in the process of decomposition on soil. In the last task pupils try to write all the things that could influence the length of decomposition of different materials.