clean sourrounding

Hi everyone
I actually don't know how to start but I have an idea and I just try to flow…………J
I want to make my digital story with a 6th grade on the theme: "clean surrounding".
In order to introduce the theme I take the children into different rooms in the school and around the school. I ask them what they can see. I want the pupils to come alone to the conclusion that we live in a dirty surrounding and I want the children to come to the awareness of recycling. In order the children to come to the topic I will ask them questions such as what feelings do they have?
What makes this feeling?
What are the differences between the different places? (For example classroom and their own room at home.)
I want the children to collect as many rubbish as the can during a week and they have to sort the different products. While they are doing that, we are learning about the different raw materials and what we can do with them. I want the children to figure out what they can recycle and what we can do in order to live in a cleaner surrounding. I would like the children to join the municipal cleaning group for one day. Then the children have to write down what their impressions and experiences were and how they felt. In groups of two I want the children either to make a short movie or to write a book for children how they can preserve a clean surrounding.

Well I hope you understood what I want the class to do…
Other suggestions and comments are welcome
Have a nice day