3. Classification of Materials

What is the meaning of Classification?

• Classification means Materials

• Classification is a method of grouping, in which we place similar things together in one group.

• Classification is keeping things safely.

• Classification is a method of grouping, in which we place dissimilar things together in one group.

Gold is non-lustrous.

• True

• False

Choose the correct properties:

Metal can also be drawn into wires and sheets.

• Wire and Sheets

• Sheetitility and Wiretility

• Ductility and Malleability

• Duct and Malle

Click the correct example:

Which of the following is non-lustrous?

• Gold

• Silver

• Tin

• Clay Pot

Materials which allow light to pass through them partially are called_____.

• Translucent

• Transparent

• Opaque

• Luster

_____is the universal solvent.

• Water

• Liquid

• Solid

• Oxygen

Elastic Rubber Band sinks in the water.

• True

• False

You cannot change shape of ______by pressing it, or cut it easily.

• Hard Material

• Soft Material

• Rough Material

• All of the above

Oil is immiscible in water while, Sugar is ___in water

• soluble

• insoluble

• solvent

• solute

Cotton is hard while, bricks are soft.

• True

• False