Hello everyone =) This week everyone has been very busy. It's the science week, after all. Students from all classes are able to present a project in wich they can show everyone how to reach a physic's law. In my project, I showed everyone that there are many objects that can float, and others can sink. Why? Because of their density. For example, an iron bar will sink, but a boat will float. How's that? The boat may be very heavy, but it occupies a loooooong space. And, as we know, density is the result of dividing the mass of an object with it's volume. If the density is heavier than the water's one, it will sink. If the density is lighter than the water's one, it will float. This is called the Arquimedes's principe. Tomorrow I will post another projects that were shown, with some photographs. Take care everyone =)