Pure Substances vs Mixtures (Middle School Science)

⭐️ Check out our website https://www.cognito.org/ ⭐️ ** WHAT'S COVERED ** 1. The difference between pure substances and mixtures Defining pure substances as single elements or compounds. Defining mixtures as two or more substances that are not chemically joined. How pure substances and mixtures can be separated. 2. The physical and chemical properties of pure substances An overview of physical properties such as melting point, boiling point, and density. An explanation of chemical properties, including reactivity with oxygen, acids, and water. 3. How to identify substances using their properties A method for testing the properties of an unknown substance. Comparing experimental results with known values to identify a substance. ** CHAPTERS ** 0:00 Introduction 0:26 What are Pure Substances and Mixtures? 1:50 Properties of Pure Substances 2:08 Physical Properties 3:57 Chemical Properties 4:56 How to Identify Substances ** PLAYLISTS **    • KS3 Biology      • KS3 Chemistry      • GCSE Maths (9-1)      • GCSE Biology (9-1)      • GCSE Chemistry (9-1)      • GCSE Physics (9-1)      • A-Level Biology   #study #revision #school #exam #IGCSE #IB #AP #ngss