Goldfish Respiration

Goldfish Respiration
Abstract
The purpose of this experiment is to design and conduct a basic scientific experiment, identify and control variables. Some other objectives that we learned is to write a formal hypothesis, identify the basic and integrated process skills of science that were used in this experiment. Also, we will learned the effects of temperature on goldfish respiration. This experiment will be conducted with four students , one goldfish, thermometer, a stop watch, and a beaker. Our results showed that the fish temperature increased and the fish breathing slowed down.
Introduction
Organisms have specialized structures to carry out respiration. In fish, the gills can be found beneath a protective covering called the operculum. The gills are made of gill filaments, which serve to increase the surface area. When a "fish breathes," its operculum closes and its mouth opens. To allow water to pass over the gill filaments, the mouth closes and the pharynx contracts. Oxygen diffuses into the capillary circulatory network and is distributed throughout the fish 's body. This process constitutes one breath in fish. Several variables affect the respiration rate of fish.
Each trial we had to calculated how many breaths of the fish for a full minute and record the data. First, we got the temperature of the beaker and lowered the temperature of the water. Second, on trail one, we added crushed ice and wait a minute for the fish to adjust. Then count and record the number of breaths the fish takes within 1 minute period at each