Edexcel IGCSE Chemistry Lecture 4 - Elements, Compounds and Mixtures

Powerpoint lecture covering the following in a modern, concise format:

Specification Point 1.8 - Understand how to classify a substance as an element, compound or mixture.

Specification Point 1.9 - Understand that a pure substance has a fixed melting and boiling point, but that a mixture may melt or boil over a range of temperatures.

Complete set of Chapter 1 Lectures are available.