A material is what something is made of. There are 5 basic materials. They are metal, glass, wood, cloth and plastic. The environment has many other materials. But they are not widely used. Metal is one of the most widely used materials. It is very heavy, hard and strong. We use it to make many things such as forks, knives, keys and cars. Glass is also very smooth. It is not as heavy as metal. It is hard. But it is not strong. It breaks very easily! We use it to make things such as windows and glasses because it is clear, and we can see clearly through it.
Wood is lighter than metal and glass. It is not as strong as metal. But it is much stronger than glass. We use wood to make chairs, tables and pencils. Cloth is very light. It is much lighter than wood. And it is very soft. It is used to make clothing and blankets. Now, let's talk about plastic. Plastic is also very light. But it is different from cloth. Sometimes it is soft. Sometimes it is hard. Plastic can be used to make thin plastic bags and bicycle helmets.
A
The underlined pronoun "it" in the 1st paragraph refers to:
B
The purpose of the writer in this passage is:
C
Wood is ............... than metal and glass.
D
The environment has only 5 materials.
E
Glass breaks very easily.
