As part of the Nelson Modular Science series the foundation books focus on the foundation level work in each module. Each module is covered in self-contained units. Two colour support books cover all the foundation tier material to Double Award and they can be used alongside the main texts as additional support or as stand-alone resources. Edexcel Modular Science (B) specifications. Ideas and evidence in science are fully covered with links throughout to supplementary reading materials and ICT activities on a dedicated website.