UNIT 9: NATURAL AND ARTIFICIAL MATERIALS
9.1. Introduction
Look at the picture
• What do you see in the picture?
Look at the picture again
• List artificial materials in the picture.
• List natural materials in the picture.
9.2. Uses of materials
Look at the picture
• What do you see?
• What are the uses of materials in picture a, b, c, d?
9.3. Artificial materials
Look at the picture
• What do you see in the picture?
Our Environment is composed of:
• Natural materials (Soil, stones, wood, water, minerals, wool, …)
• Artificial materials (Buildings, fork, plate, soap, glass, paper, cement, car, roads, bridges)