Materials are all around us and each material has a different property.
The properties of the material help us to decide which is the best material to use when we want to make something.
Look at this window.
The purpose of a window is to see through it. It is also to protect us from the wind and the rain.
The best material for a window is glass. We can see through glass as it is transparent. Another property of glass is that it is strong.
Let's practise looking at the properties of different materials.