We have studied the external anatomy of a fish. We have had the opportunity to take a close look at some of the parts of the fish that we studied beforehand. The fish we used for the experiment were sea bass. We placed the fish on plastic trays and we used tweezers and magnifying glasses. We have also learnt how to do a scientific diagram, which is a clearly labelled picture.
First we observed the fusiform body of the fish, that is wider in the middle than at the ends.
|A sea bass|
We put the tweezers in through the gills to see how they are connected to the mouth. Fish take in water through the mouth and it goes out through the gills. As it passes the blood traps the oxygen from the water.
We opened the mouth to see the tongue and the tiny teeth.
We also observed the scales and the lateral line. The lateral line is a sensory organ, it is full of receptors that detect vibrations.
Here are some great scientific diagrams of the fish we studied.
|By Rodrigo Contreras - E1C|
|By Cristina Romero - E1B|
|By Elena Pérez - E1B|
|By Inaki Antequera - E1C|
|By Ana Ortiz - E1C|
|By María Muñoz - E1C|
|By Juan de Agustín - E1B|
|By Julia Compañó - E1D|
|By Carmen González - E1D|
|By Alejandra Sánchez - E1D|
Did you enjoy this experiment? Leave your comment!