Sorting the materials

All objects are made of substances are called

• sorting

• properties

• materials

It is very important to use the ---------------for making each object

What material is used to make a clipboard (pad )

• wood

• plastic

• metal

Define Classification

Objects that shine is called as

• Shine

• lustre

• lustrous

We can do a _____________on an object to classify it is rough or smooth '

A compression test or ___________can be done to classify objects hard or soft .

• sugar test

• starch test

• scratch test

The gases which do not disslove in water

• oxygen & carbon dioxide

• hydrogen &nitrogen

• oxygen

What is the property used to tracing on paper

Air & wood is an example for________ conductors

• good

• bad

• heat