Have the students make a poster to raise awareness about the issue of sewage. Split them into groups of 2 or 3 and have them pick three pieces of information that really stood out for them and that they felt other people should be aware of.
Students will use the numbers gathered by observation to demonstrate the proliferation of plastic water bottles in society. Students will learn the true cost of bottled water in terms of oil, waste, and pollution.
One of the problems with bottled water is the bottle that the water comes in. These bottles can cause major problems in the environment and for the person drinking from them.
In order to determine the cost of water we have to do a little math first. 1. As a class, calculate the number of bottles seen 2. Assume that each bottle was 1 litre and complete the following calculation: Total number of bottles x 1 litre/bottle = Total number of litres
1 tonne = 1000 kg 2.7 million tonnes x 1000 kg/1 tonne = 2 700 000 000 kg plastic for water bottles and, therefore, 2 700 000 000 kg PETs 2 700 000 000 kg PET x 17.5 kg water/1 kg PET = 47 250 000 000 kg water
