This week we began our topic on rocks.  We have found out the names of some of the rocks that are around the world and how they are formed.  We have also looked at the difference between sedimentary, igneous and metamorphic.  We started off by having an afternoon looking at a lot of rocks, including crystals! If we didn’t know what the name of a rock was we went to the topic bookshelf to look it up.  Another afternoon we tested 5 different types of rock to see which ones would be good for the roof of a building, testing to see if the rocks were permeable or impermeable.