UNIT 7 MIXING THINGS

(1)  Some materials can dissolve in water. They will disappear in water. Example: sugar, salt, instant coffee powder and milk.

 










 (2)  When a material dissolves in water, we get a solution.

(3)  Some materilas cannot dissolve in water. These materials do not dissapear in water. Example: sand, coin, key and leaf.           
                                                                                                                    

                         









(4)  You can check whether something dissolves in water by
        (a)  tasting the mixture
        (b)  filtering the mixture