The most comprehensive illustrated science dictionary available! Hundreds of GCSE-specific definitions, audio, search, bookmarking, randomisation: all built-in. Find any term with a quick scroll, or search for words and phrases directly. Look at the example illustration to understand the context.- Bookmark as many terms as you like. Bring up terms at random to remind yourself or test a friend.- Listen to the definitions with a tap of the 'play' button.The terms and illustrations are also found in our popular Revision Guide apps, a groundbreaking series of short, snappy "app textbooks: featuring complete revision units, exam-style practice questions and model answers.