4.2 Classification Of Materials

1) Some objects are made of one type of material. For example, a towel is made from cloth.

2) Some objects are made of more than one material.

3) An object can be made from different materials. For example, a mug can be made of glass, clay, plastic or stainless steel.

4) A material can be used to make different objects. For example, plastic can be used to make waste-paper baskets, containers, pencil boxes and cup.


Test Youself

Fill in the blanks with the correct words.

rubber	materials	metals
variety	wood	glass

1) We uses a _____________ of materials to make many types of objects.

2) Objects can be made from rubber, plastic, metal, _____________ or _____________.

3) Objects can be grouped according to the ____________ they are mede of.

4) Nails, needles, screws and knives are objects that are made of ____________.

5) Erasers, car tyres and balloons are objects that are made of ___________.