Group 1: Alkali Metals (KS3 Chemistry) *Full Lesson*

This is a full lesson investigating the properties of group one metals/Alkali metals. It was originally delivered to a year 8 class but could easily be adapted for other key stages and year levels. This is designed for a 100 minute lesson but could be broken up into smaller parts.
This is the second lesson in a series of lessons. The other lessons are also available here.

Please note - This lesson contains a demonstration of alkali metals reacting with water so preparation will be needed for that.

During the lesson, pupils will:

• Complete a do now task testing their knowledge using the periodic table (from the previous lesson in the series)
• Recap information from the previous lesson about the properties of metals and non-metals.
• Identify the periods and groups on a periodic table and what we can tell about an element by its position on the periodic table.
• Recap knowledge of structure of an atom and the importance of protons and neutrons.
• Identify the group one/Alkali metals on the periodic table.
• Make observations about the reaction between Lithium, Sodium and Potassium and water.
• Make predictions about the reaction of rubidium and caesium with water. Watch a video to see the reaction and compare it with predictions.
• Identify the relationship between the position in the group and the reactivity of a group one metal.
• Compare the properties of group one metals with other metals.