3. CHEMICAL CHANGES

4. SOME CHEMICAL CHANGES OCCUR VERY QUICKLY. SUCH AS PAPER COMBUSTIONS. HOWEVER, CHEMICAL CHANGES IN EARTH`S MATTER OCCUR VERY SLOWLY. W E ONLY SEE THE EFFECTS AFTER HUNDREDS OF YEAR

5. THE EROSIVE ACTION OF WATER FORM UNDERGROUND CAVES WATER TRANSFORM ROCK MATTER BY DISSOLVING ROCK PARTICLES CREATING A CAVE. CRUDE OIL IS COMPOSE OF REMAINS OF LIVING THINGS. THESE REMAINS WERE BURIED DEEP UNDER THE GROUND THOUSAND OF YEARS AGO.

6. CLASSIFY THESE CHANGES IN THE TABLE BELOW. 1.- WATER FALLING DOWN A WATERFALL.. 2.- DEW FORMING ON LEAVES. 3.- A ROCK DISSOLVING IN WATER. 4.- ICE TURNING TO WATER. 5.-A ROCK BREAKING INTO SMALL PIECES. PHYSICAL CHANGECHEMICAL CHANGE CLASSWORK