3 IGCSE resources Search within results Go How ratings and recommendations work Apply Filter resourcesClear all filtersLevelClear filter IGCSE Subject Chemistry Exam board CIE Edexcel TopicClear filter Organic Resources Crossword Flashcards Mindmap Multi-tool Quizsearch Alkenes and alkanes IGCSE, Chemistry Mindmap 4.0 / 5 Polymers IGCSE, Chemistry Crossword Polymers IGCSE, Chemistry Crossword Search again