1. This project and its actions were made possible due to co-financing by the European Fund for the Integration of Third-Country Nationals Rocks – igneous Subject(s):Geography, Science Age group(s):8–11, 12–14, 15–16 Topic:Types of rocks EAL Nexus resource Licence information | This resource is free to use for educational purposes. © British Council 2014 Source | This resource was originally developed from a resource on TES by j33ffa, Charlotte Hurley and Alison Fisher and has been adapted by EAL Nexus.

2. Obsidian – igneous rock (rock formed when magma cools) Obsidian is formed when molten rock cools quickly. Uses: knives/sharp tools jewellery gems It is dark black and shiny. It is hard and brittle and can be broken to make sharp edges. Obsidian is a type of volcanic glass. © AlejandroLinaresGarcia © Simon Burchell

3. Gabbro – igneous rock (rock formed when magma cools) Gabbro is formed when molten magma is trapped beneath the Earth’s surface. Uses: building decorating buildings kitchen worktops paving stones Gabbro is dark grey to black in colour. Gabbro has a rough surface. Gabbro is usually found near ocean ridges and in mountainous areas. Gabbro has large interlocking crystals. © Maria Ly © Kevin Walsh © Roll-Stone © Ggrrdll

4. Basalt – igneous rock (rock formed when magma cools) Basalt rock is formed by the rapid cooling of lava near the surface. Uses: cobbles statues paving roads It is dark grey and very hard. Basalt sometimes forms columns of stone as it hardens. Basalt weathers in air and water to change to a red- brown colour. Basalt has a rough surface. © Eurico Zimbres © ray blow

5. Granite – igneous rock (rock formed when magma cools) Granite is made when molten rock from a volcano is cooled down and forms large interlocking crystals. Granite is a very heavy material. Granite can be polished to make it smooth and to make it look good. Uses: buildings kitchen worktops kitchen utensils Granite is hard and tough. light heavy Granite comes in many colours from pink to grey and sometimes black. © Halvard © Ggrrdll

6. Obsidian

7. Gabbro

8. Basalt

9. Granite

11. Obsidian It is an igneous rock. It is formed by magma cooling quickly. It is dark and shiny like glass. It is used to make very sharp knives.

12. Gabbro It is an igneous rock. It has large interlocking crystals. It is usually dark grey. It can be used for paving stones. It is rough. It can be found in mountainous areas.

13. Basalt It is an igneous rock. It has small interlocking crystals. It is dark grey and very hard. It sometimes forms columns of stone as it hardens. It turns red when it weathers.

14. Granite It is an igneous rock. It has interlocking crystals. It is formed by magma cooling slowly so it has large crystals. It is used for kitchen worktops because it is so hard. It is heavy.