In conclusion, the data from the goldfish respiration lab supports my hypothesis. My hypothesis was that if I were to put the goldfish in the 27OC water then the goldfish will breathe faster because the water is hotter and the molecules move further apart. Therefore, the fish will have to take more breaths. In 10OC water, the goldfish will take fewer breaths because in colder water the molecules move slower and they are closer together. As a result, it will have to take fewer breaths.
On the contrary, a decrease in water temperature causes a fish not to require as much oxygen. The hypothesis was that the rate of breathing of the goldfish would increase with an increase in the water temperature, and that it would slow down with a decrease in the water temperature. Materials and Methods: The experiment started by equally filling up two large battery jars with cold water. Two goldfish were each put into the jars. The experimental and control group each got one of the
(Ramel). Temperature of the water affects fish as in if the water is to hot or cold, the fish will die. So popular belief is that when the fish needs to warm its body up, it needs to move around more and eat more. These are believed to control fish’s body temperature. The amount of dissolved oxygen in the water depends on the temperature.
Start the clock and record the number of mealworms found in each side of the chamber at 30-second intervals for 5 minutes. Results Table 1.1 group results: Number of mealworms in light (L)/dark (D) conditions over time | Run 1 | Run 2 | Run 3 | Average | Time | L | D | L | D | L | D | L | D | 30 | 6 | 4 | 3 | 7 | 5 | 5 | 5 | 5 | 60 | 5 | 5 | 2 | 8 | 5 | 5 | 4 | 6 | 90 | 5 | 5 | 3 | 7 | 5
The pH recorded by using pH electrode before adding NaOH. The solution titrated by 2 ml of NaOH each time and the pH recorded until the color change. These steps were done for the two known solutions and the unknown solution. Part 2 10 ml of vinegar placed in 100ml volumetric flask and deionized water added until the mark. The solution transferred in 150 ml beaker labeled as beaker #1.
Gather all materials 2. Heat 200mL of water in the beaker for 90 seconds 3. Place the bulb of one thermometer just below the surface of the water 4. Record the initial temperature at the top 5. At the same time, place the second thermometer bulb just at about the bottom of the beaker 6.
The initial oxygen in the flask was measured, and then the fish was put in a flask for 30 minutes. Then, the final oxygen content was measured in the flask. We calculated the milligrams of oxygen consumed by the fish per gram of fish per
First, 0.4040 grams of NaH2PO4 and 0.3989 grams of Na2HPO4 were added to a 150 mL beaker, along with 50 mL of distilled water. Next, 20 drops of bromothymol blue were inserted into the solution. The program LoggerPro and a Vernier pH probe were used to calculate the pH. Then, a volumetric flask was used to measure 5 mL of the buffer solution into each of three, separate 50 mL beakers. After rinsing a volumetric pipet with 1.0 M HCl, 1.00 mL of 1.0 M HCl was transferred to one of the three beakers.
The temperature was raised to 70 degrees Celsius and 4.419 g of salicylic acid was measured out on a balance and transferred into a 125. mL Erlenmeyer flask. Next, 8.00 mL of acetic anhydride was measured out and poured into the flask containing salicylic acid, ten drops of phosphoric acid was placed inside. The flask was then immersed into the hot water bath for twenty minutes. A vacuum filtration system was set up and the contents of the flask was transferred onto the filter paper. The mass of the filter paper and watch glass was 42.7131 grams.
Cold blooded animals don't do this (which is why they eat less and live longer), so their temperature could fluctuate with environmental changes. This would be bad for them (think of the optimum temperatures for enzymes etc.) so they need to regulate this. Water's high specific heat capacity means that it needs a lot of energy to warm up, or it needs to lose a lot of energy to cool down. Animals that have a lot of water in them need larger environmental temperature changes to effect their body temperature.