~mATTER~

WHAT IS MATTER?????

Matter is the Stuff Around You

Matter is everything around you. Matter is anything made of atoms and molecules. Matter is anything that has a mass.

                                 Matter can be divided into :

   Pure substance                        &                       Mixture

    

       can be divided into :                            can be divided into :

Element   &    Compound                    Homogeneous  &    Hetergeneous                             

                                                                                                  

(Element is made of atoms)                           (Homogeneous uniform throughout)

(Compound is made of elements)                  (Hetergeneous isnt uniform)

Element can be divided into :                  

Metal, metaloid and non-metal

Compound can be divided into :

Ionic and covalent

Elements and compounds can move from one physical state to another and not change = physical change

For example : Oxygen (O₂) as a gas still has the same properties as liquid oxygen. The liquid state is colder and denser but the molecules are still the same.

If the formula of water were to change, that would be a chemical change = chemical change

For example : If you added another oxygen atom, you would make hydrogen peroxide (H₂O₂). Its molecules would not be water anymore.

More properties of matter :

Matter is commonly said to have 3 states

1. SOLID------rigid

 Don't change shape easily experiences small changes in volume when heated.

2. LIQUID

Takes the shape of the container and experiences slight changes in volume when heated.

          

 3 . GAS

Takes the shape of the container and experiences dratic

 in volume when heated