Which items are matter?
battery electricity mobile phone sound light heat

Explanation:

Matter is defined as any object which occupies space and has volume.

A substance that is present in solid, liquid or gaseous state will be considered as a matter.

For example, a chair is a solid substance and hence it is a matter.

Whereas electricity is the flow of charges, sound, light and heat are all due to exchange of energy. Hence, they are not matter.

Thus, we can conclude that out of the given options battery and mobile phone are matter.