Igneous rocks - KS3 Activate lesson

A full 1 hour lesson designed for a mixed ability year 8 class. This lesson contains a paractical on investigating the size of salol crystals upon cooling
This is the 3rd lesson in “Chapter 4 - The Earth" from Activate 2, Chemistry. This lesson is on 'igneous rocks’. This lesson has been separated from metamorphic rocks, which are on the same page in the textbook.
This lesson should be suitable to teach to any KS3 Chemistry class, even by those where Chemistry is not their specialism.
This lesson (and all lessons in this unit) is designed to be interactive and engaging, with plenty of real world examples and independent tasks.

**From this lesson, students should be able to:

• Recall what an igneous rock is
• Describe the properties of igneous rocks**
• Describe how igneous rocks are formed
• Compare the differences between intrusive igneous rocks and extrusive igneous rocks, and how they are made
• Explain why some igneous rocks have large crystals, and some igneous rocks have small crystals

All of my lessons contain:

• A 5-in-5 retrieval-style starter
• An interesting lesson hook, careers link, or retrieval practice to start the lesson
• Teacher input slides with dual coding and reduced cognitive load, where key vocabulary is explicitly taught
• Teacher models
• Regular ‘check for understanding’ slides, such as hand signals quizzes and whiteboard quizzes
• Regular student independent practice slides, with optional scaffolds, challenges and answer slides
• A plenary task