Water is made up of two different elements which are ...................... and ...........................

Choose ALL the correct physical characteristics of water.

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 .............................

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

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.

Select ALL the process that involved the absorption of heat.

Select ALL the process that involved in the release of heat energy.

What is the ratio of hydrogen and oxygen in water molecule?

How to separate the elements of hydrogen and oxygen in water?

What happen to the boiling of water if added with salt?

The melting becomes lower than 0  $\degree$ C  in water if there is the presence of salt. What is the term for salt it refers to?