Display this set of Chemical Sciences posters when learning about the properties of different materials.   The set includes three natural materials, wood, sand and oil. Each poster shows six processed materials that are derived from the main natural material.   Display these posters when learning about the properties of natural and made materials in Year 4 Chemical Science.   Print on A4 to display in the classroom or on smaller cards for student reference.   This resource is part of our Chemical Sciences Year 4 UNIT PLAN.