What is a Material How are Materials used

What is a Material? How are Materials used? BY : Jagdeep Sangwan (lect. in M. E. )

What materials can you think of? Plastic Wood Glass Sand Wool Metal Rock or Stone Fabric Rubber

• What are the following objects made out of? • Describe the following Materials according to their properties. • Make a list of the properties of the Materials.

Wood Properties Transparent Opaque Hard Soft Tough Brittle Flexible Rigid

Rubber Properties Transparent Opaque Hard Soft Tough Brittle Flexible Rigid

Plastic Properties Transparent Opaque Hard Soft Tough Brittle Flexible Rigid

Metal Properties Transparent Opaque Hard Soft Tough Brittle Flexible Rigid

Wool Properties Transparent Opaque Hard Soft Tough Brittle Flexible Rigid

Fabric Properties Transparent Opaque Hard Soft Tough Brittle Flexible Rigid

Glass Properties Transparent Opaque Hard Soft Tough Brittle Flexible Rigid

Rock or Stone Properties Transparent Opaque Hard Soft Tough Brittle Flexible Rigid

• Write a list of the properties of the Materials we have looked at. • Think of the properties we have discussed and what the materials are used for.

• In your groups discuss how these materials could be sorted. • Share your ideas with the rest of the class. • Have you all come up with similar ideas?

• In your groups discuss which materials you think are the most important to us in our daily lives. • Complete the Diamond Ranking grid to show you would rank the importance of the materials from most important to least important.

Which material do you think is the most important in our daily lives? Which one do we use the most? What could we not live without? Most important Least important

• Share your views about how you ranked the materials from most important to least important. • Are your views all the same? • Are your views similar or different? • What problems did you come across in your group discussion?