Test: Matter and Materials - Class 6 MCQ

As 0 degree Celsius is the freezing point of water, similarly 100 degree Celsius is the boiling point of water.

Love, smell and thoughts are not matter because they do not occupy space and mass. Almonds are the odd one out as it is a matter.

Carbon dioxide can easily sublime from its gaseous state to its solid state called dry ice.

Liquids can freeze. Solids are already in the tight packaging and are in the freeze form themselves. Gases cannot freeze.

Baking of cake is an example of both chemical as well as irreversible change.

 The conversion of solid into gas without changing into liquid is called sublimation.

Melting of ice and breaking of glass is a physical change.

Solid has a definite shape and volume.

Liquid has a definite volume but no definite shape.

Melting is the conversion of ice into water.