Chemistry 1051 Portfolio Over my time in chemistry 1051, I have learned many valuable lessons, and skills. Accurate recording of data was one of those skills, as was creating a well-organized lab write up that correctly laid out the process we completed. During the very first lab we were also given the task of creating our own method to test the density of a peace of glass. We decided to both measure and weigh the glass, effectively testing the density, and afterwards critiquing both methods and choosing the most effective one. This demonstrated our ability to both create a solution, and correctly interpret the task at hand. In the second lab, Introduction to General Chemistry, An Experimental Tour, we were asked to accurately record data, …show more content…
We were asked to correctly communicate these findings as we tested each of the substances she had encountered with both water and hexane. In experiment number three, The Relationship Between the Volume of a Gas and the Temperature, we where given a list of materials and asked to come up with our own procedure, which we did using zip lock bags filled with air, and submerged fully in a measured amount of water in order to find the volume, and then the change in volume when the temperature of the water was increased. In the fourth experiment we were asked to find the temperature of heated water, based on the cold and warm water. The experiment also required that each section be preformed several times in order to ensure accuracy, and also asked that the experimental responsibilities be split up between lab partners, each doing a section of the testing. This gave us an opportunity to work together with our fellow lab partners, with no one person doing the bulk of the work. Our latest lab covered a detailed description of atoms and molecules, laid out in a distinctive way using balls and sticks for valence electrons and bonds. We were given charts to fill out recoding our findings regarding several molecules and their electron count, type of bonds, …show more content…
Our first method was to weigh the glass by putting it in a graduated cylinder of water and placing the glass inside and to observe the lever to with the water rose after first recording the original state of the water. The second test we preformed was to measure the glass and use it’s dimensions to determine the density. This procedure taught me how problem solve effectively and scientifically using information I previously learned in both chemistry and mathematics and applying it to this problem. This also gave me the ability to test the effectiveness of my experiment and decide which one was more proficient at producing an accurate test of the density of the glass. We continuously referred back to the original request of the experiment, making sure our goals aligned with the problem at hand, determining
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In the first part of the experiment, Part A, the standard solutions were prepared. As a whole, the experiment was conducted by four people, however, for Part A, the group was split in two to prepare the two different solutions. Calibrations curves were created for the standard solutions of both Red 40 and Blue 1. Each solution was treated with a serial 2-fold dilution to gain different concentrations of each solution.
The name of the lab is “Drops on a Penny.” I was expected to find the independant variable, dependant variable, write a hypothesis, and test the experiment. After testing the experiment multiple times, I needed to find the average amount of drops for each trial, graph them, and tell what kind of relationship it is. The last thing I needed to do was rewrite the details of the project and write a conclusion. The point of the experiment was to have the students get used to the idea of a lab, and get familiar with independent and dependent variables.
Anth. 105 Human Species – Lab 3 Report Sirin Gul November 11, 2017 Introduction In Lab 3, we examined the relationships between diet quality, tooth shape and daily travel distance. Evolution has changed how humans and other primates live and survived according to their environment. They are relatively related/similar to each other when it comes to fossil hominins, humans and other primates.
Soda Cans 6. Kettle 7. Measuring Glass 8. Funnel 9. Measuring Cylinder HYPOTHESIS
The last thing that I did was recording the class data so that I can make the graph. This was the methods and the materials that we used during the experiment and helped make the events go by faster and make sure that all of the information is accurate so that when we recorded our
Noisy, and uncooperative students make Frank doubt the technique of using partners. Without success, Frank’s past two attempts of the lab need change. The first attempt separated the activity into stations, but this idea failed severely. While the second attempt required the students to do one process, a period seemed to work on paper, it was a recipe for
I accumulated scores from state tests, my placement tests, and student records, therefore I know the skill levels of my students range from grade 2-6. Because of this skill deficit, I incorporate basic skill practice such as measuring with a ruler, orally defining basic terms, and discussion before writing. To reach students learning styles and to promote social skills I use modeling, working with a peer and physical activity. Knowing most of my students have unstable homes I do not assign homework. Since there are diverse learning gaps, and all students are either kinesthetic or auditory learners. I plan for discussion and hands-on learning.
Slime Time Chemistry and biology often overlap in their content or their umbrellas of areas of study and information. It is impossible to fully understand biology without fully understanding chemistry and vise versa or at least knowing some things about the other. One lab that is offered by Hennepin Technical College of Minnesota in the class, Biology in Society, is called Chemical Bonding Fundamentals: Lab 3. The lab focuses on the understanding of polarity as well as identifying if certain inks and solvents are polar or non-polar. The experiment is called Slime Time and it consists of three parts; making the slime, slime and putty ink tests, and chromatography of ink samples.
The things that went well in the experiment are the experimentation portion of the experiment. The problem we had completing the project was making sure that the test was fair for the people that
In John Steinbeck’s “The Snake”, he used a scenic approach in order to manipulate the dynamic between science and fiction by juxtaposing the realities of a science lab with a non-existent woman, which leads the reader to question if Dr. Phillips is mentally stable, by creating characters that would showcase how dark our inner thoughts are. John Steinbeck includes this as a way to prompt secure emotions full of conviction and realization in the readers, to the extent of establishing sacred connections between what is real and what our mind convinces us to be real. The setting fails to reach the common standards of a normal science lab. A normal science laboratory receives visitors who watches the processes and participates in the studies of
It is also important to know that throughout the entire experiment
Conformity is an element that is around whether it goes noticed or not. People conform to circumstances and situations as they come along, sometimes subconsciously. One of the major places conformity takes place especially early on in life is the classroom, which is why I decided to do my experiment in the classroom. I had intentions on doing the experiment in the classroom and going against whatever the unanimous view was, but the opportunity occurred spontaneously. I have always been the type of person that was confident in the decisions that I made so when I went into class on the day the experiment occurred, my mind was clear of any anxiety.
INTRODUCTION The purpose of this lab is to practice the use of the scientific method, the series of steps in which scientific data is collected through observation and experimentation. The secondary purpose of this lab is to discover the issue that dominantly interests the students at Nova High School. HYPOTHESIS
The Modern Development of Atomic Theory According to Democritus, “Nothing exists except atoms and empty space; everything else is opinion.” This conveys the controversy in scientific investigations made in defining a singular molecule. Since 460 BC, atomism has been an alternating concept of chemistry. Several significant scientists have contributed to this field profoundly.