Accurate In A Lab

This lab is to show you the difference between being accurate and precise in a laboratory setting.
Mostly anything you do includes accuracy and precision whether that is tossing a football around, shooting a gun, or measuring a certain material in a lab. Being accurate and precise are to different things. Accuracy is when you can get close to the accepted value while being precise is when your values are close together. An easy way to understand this is playing darts. For instance, if you hit the bull’s-eye once and all your other shots are scattered then you are accurate but if your shots are in a group but not near the bull’s-eye then you are precise. If you are accurate and precise then all your measurements will be close to each other and near the accepted value.
For part 1 of the experiment you were to gather the materials which where chalk, a catapult, and …show more content…
For the first part if the experiment you were weigh the plastic tube and cap. After that you were supposed to put 8 milliliters of water in the tube and weigh it again. Once you have the mass of the water, tube, and cap, subtract the mass of the tube and cap. Repeat this step three times and record your results in the lab manual. After you have completed this three times you will calculate average mass of water, average volume of water, and the percent error. For the next step you will do the exact same thing but instead of using a plastic tube and cap you will use a graduated cylinder. For the final part you will weigh 8 grams of water on a water boat and then transfer the water into a graduated tube. Once you have done that you will measure how many milliliters of water are in the tube and record your results. You will do this step a total of three times. Once you have finished you will calculate average volume and the percent