These two processes absorbs heat energy during the changes in the state of matter.

The impurities such salt when added to water will _______________ the freezing point of water.

Evaporation only occurs on the ___________________ of water

Tick the correct physical appearance of pure water.

When we add salt into pure water, the boiling point of the solution will

Insects like daddy longlegs can move on the surface of the water because of

What is the name of the phenomenon than make the water moves from the bottom to the leaves?

During electrolysis, the gas produced at anode is

When a lighted wooden splint is put a the mouth of the test tube containing this gas, a 'pop' sound is heard. What is the gas name?

The melting point of pure water is .................  $\degree$ C

The boiling point of pure water is ..............  $\degree$ C

The process of ice cube changes into water is know as ...................

The process of water changes into water vapour is known as .......................... and .............................

This process involved the release of high amount of heat energy from water and makes the water molecules to become closer to each other in fixed position.

The process involved in the changes of ice cube into water vapour or vice verse.