• The goal of this experiment is to learn how to use and become accustomed to the different types of scientific equipment that will be used in the laboratory for future labs (i.e. pipettes, glassware, etc). This experiment will also help with practicing and learning how to calculate error in an experiment when using lab equipment that involves measurement, since measurement is not always precise.
A-2. Tell the reader the subject of the experiment and what the key experimental variables are.
• The subject of the experiment is to practice and learn how to use some of the laboratory equipment (i.e. pipette, graduated cylinder, etc) and understand why measurement is not always precise and how to calculate errors.
• The independent variables are …show more content…
Describe the purpose for doing the experiment (why it is important);
• The purpose for doing this experiment is to become familiar with the laboratory equipment and understand the terminology for each different measurement tool. It is important to differentiate the lab equipment and the terminology associated with it so that the proper terminology is used for each laboratory tool used in the experiment.
B-3. Discuss what might be the possible outcome of the experiment.
• When using the laboratory equipment to measure the water in a graduated cylinder, and the sides of a cube repetitively, it is possible that there will be a few errors with measurement being precise.
C. Materials and Methods/Experimental Procedure/ Methodology: What will you do and how will you do it? THIS IS TO BE COMPLETED BEFORE LAB CLASS.
C-1. Describe the basic laboratory procedure used to gather the data;
• First step involves using a 10 ml pipette to put in 5 ml of water into a 50 ml graduated cylinder. Repeat this process four times. Then compare the volume in the graduated cylinder to the expected 20 ml result, and calculate the percent …show more content…
After finding out their weights, calculate the average of all six stoppers.
C-2. Describe the process used to analyze the data;
• To calculate the percent difference for the first three steps we would have to use the equation;
Percent Difference= |measured value-accepted value| x100 accepted value
• For the fourth and fifth step we would use the ladder method to convert the result into different measurements.
• And for the last step in order to calculate the average we would use the equation (except instead of 3 measurements we would have 6);
• Average= Measurement 1 + Measurement 2 + Measurement 3 3
C-3. Discuss laboratory safety concerns.
• It is important when doing an experiment to protect your eyes with goggles, and to wear the proper clothing (i.e. nothing involving exposure of the skin). Also if your hair is long, the person must have their hair tied back.
• Because this experiment will also involve using glassware, it is important to be careful with the glass and make sure there are no chips, cracks, or residue of liquids from previous
A-2. Tell the reader the subject of the experiment and what the key experimental variables are.
• The subject of the experiment is to practice and learn how to use some of the laboratory equipment (i.e. pipette, graduated cylinder, etc) and understand why measurement is not always precise and how to calculate errors.
• The independent variables are …show more content…
Describe the purpose for doing the experiment (why it is important);
• The purpose for doing this experiment is to become familiar with the laboratory equipment and understand the terminology for each different measurement tool. It is important to differentiate the lab equipment and the terminology associated with it so that the proper terminology is used for each laboratory tool used in the experiment.
B-3. Discuss what might be the possible outcome of the experiment.
• When using the laboratory equipment to measure the water in a graduated cylinder, and the sides of a cube repetitively, it is possible that there will be a few errors with measurement being precise.
C. Materials and Methods/Experimental Procedure/ Methodology: What will you do and how will you do it? THIS IS TO BE COMPLETED BEFORE LAB CLASS.
C-1. Describe the basic laboratory procedure used to gather the data;
• First step involves using a 10 ml pipette to put in 5 ml of water into a 50 ml graduated cylinder. Repeat this process four times. Then compare the volume in the graduated cylinder to the expected 20 ml result, and calculate the percent …show more content…
After finding out their weights, calculate the average of all six stoppers.
C-2. Describe the process used to analyze the data;
• To calculate the percent difference for the first three steps we would have to use the equation;
Percent Difference= |measured value-accepted value| x100 accepted value
• For the fourth and fifth step we would use the ladder method to convert the result into different measurements.
• And for the last step in order to calculate the average we would use the equation (except instead of 3 measurements we would have 6);
• Average= Measurement 1 + Measurement 2 + Measurement 3 3
C-3. Discuss laboratory safety concerns.
• It is important when doing an experiment to protect your eyes with goggles, and to wear the proper clothing (i.e. nothing involving exposure of the skin). Also if your hair is long, the person must have their hair tied back.
• Because this experiment will also involve using glassware, it is important to be careful with the glass and make sure there are no chips, cracks, or residue of liquids from previous