Easter Island, and the lesson we should learn.

What we should learn from Easter Island is that it failed because they used all their natural resources . We should learn that lesson and use our natural resources more wisely. Otherwise the U.S.A may fail as well , or the country could be in really bad condition .

Blogging Tiger Award for Buoyancy

The Blogging Tiger Award for Science goes to Sarah F. for her excellent post on "Why do some things float while others sink?" Congratulations. Here is a link to her post.

The Reason some things Float and some things Sink.

The reason why some things float and some things sink is because of buoyancy . It also depends on what fluid it is floating in and the density of the water and shape.If the density is greater in the shape than the fluid it sinks.If the density is less than the fluid it floats.