TRY THESE LINKS AND FIND OUT MORE ABOUT MATERIALS AND ENERGY
http://www.bbc.co.uk/bitesize/ks2/science/materials/material_properties/read/7/
http://www.recyclenow.com/recycle/why-recycle
http://www.bbc.co.uk/bitesize/ks2/science/materials/material_properties/read/7/
http://www.childrensuniversity.manchester.ac.uk/interactives/science/energy/what-is-energy/