Streams & Rivers

                Rivers come in many different shapes and sizes, but they all have things in common. All rivers and streams start at a high point. The high point can be a mountain, hill or other elevated area. The water source comes from a spring, snow melt, or a lake starts at this high point and begins to flow down to lower points. The characteristics of a river or stream change during the journey from the source to the mouth. The temperature is cooler at the source. Eventually, all this water from rivers and streams will flow down into the ocean or an inland body of water like a lake. Streams and rivers can be found everywhere. The water is clear. It has high oxygen levels and freshwater fish such as trout and heterotrophs can be found there. Towards the middle of the stream or river, the width gets bigger, as does the species such as aquatic green plants and algae can be found. There is less diversity of flora because of the lower oxygen levels, fish that require less oxygen, such as catfish and carp can be found.    These are all the things that I have learned in class today.

Resources: Science class