Skiddaw class have been learning all about rocks in Science recently. There is nothing better than chocolate to show the ways of making different types of rocks! The Rock Cycle goes round and round and rocks are changed into other types over millions of years. We started with layers of grated milk and white chocolate to represent the sedimentary rocks like limestone and chalk. We pressed these little bits down just like the sea presses the layers down to make these rocks.
We then applied a bit of heat from our hands and twisted the chocolate sediment to form metamorphic rocks like marble and slate.
Then we put some of the chocolate into a cup of hot water and melted it and cooled it, like the igneous rocks that are formed underground and then erupted out of a volcano like granite and basalt. We know that rocks are weathered and eroded into little bits that flow into rivers and into the sea and the whole cycle starts again!
Of course, we stopped and ate our chocolate which tasted pretty good even though we had changed it to much!