Problem: Develop a project to model a scientific model of scientific principle or develop something that can be used as a manipulative demonstrate how something works for a particular scientific idea.
Constraints: Must model a concept in science with the emphasis on the idea that the object will help others learn, visualize, and understand a difficult topic. Also needs research on topic, reflect what you learned this semester, and consist of a written portion.
Evaluation: A) the solution was very effective and did its job to demonstrate how water molecules align when next to each other with their positive and negative sides based on polarity
B) recommendations to improve it would be to make the size bigger and try to make a more complicated molecule
C) I would optimize the design by being more precise with the angle of which the hydrogen molecules connect to the oxygen.
D) General recommendations include finding a way to add the lone pairs of electrons to show an even more accurate model.
Constraints: Must model a concept in science with the emphasis on the idea that the object will help others learn, visualize, and understand a difficult topic. Also needs research on topic, reflect what you learned this semester, and consist of a written portion.
Evaluation: A) the solution was very effective and did its job to demonstrate how water molecules align when next to each other with their positive and negative sides based on polarity
B) recommendations to improve it would be to make the size bigger and try to make a more complicated molecule
C) I would optimize the design by being more precise with the angle of which the hydrogen molecules connect to the oxygen.
D) General recommendations include finding a way to add the lone pairs of electrons to show an even more accurate model.
Background Research...
Branch of Science - Chemistry
Topic of chemistry - Molecules and how they align when there are multiple together
How the model represents the topic - the molecule picked was H2O, with two of the models printed out it can be used to show how the molecule has a positive and negative side of the molecule. By having two, the alignment of the molecules when next to each other can be seen
Summary of the Science - in the H2O molecule, the Hydrogen (H) molecules are positively charged and the Oxygen (O) molecule is negatively charged. When there are many H2O molecules they align in specific ways, they are not random and all over the place, instead they are aligned where the negatively charged oxygen molecule is next to the positively charged Hydrogen Molecules on a different molecule as seen below
Branch of Science - Chemistry
Topic of chemistry - Molecules and how they align when there are multiple together
How the model represents the topic - the molecule picked was H2O, with two of the models printed out it can be used to show how the molecule has a positive and negative side of the molecule. By having two, the alignment of the molecules when next to each other can be seen
Summary of the Science - in the H2O molecule, the Hydrogen (H) molecules are positively charged and the Oxygen (O) molecule is negatively charged. When there are many H2O molecules they align in specific ways, they are not random and all over the place, instead they are aligned where the negatively charged oxygen molecule is next to the positively charged Hydrogen Molecules on a different molecule as seen below
Written Portion...
The topic this model is based on is the molecules in chemistry and how they align when there are two or more of that molecule. In this case the molecule of water, H2O, was used to demonstrate this concept. In all molecules that are polar, for example H2O, there is a positively charged part of the molecule and a negatively charged part of the molecule. In the case of H2O, the Hydrogen molecules are positively charged and the oxygen molecule is negatively charged. When there are multiple molecules of H2O, they align in such a way where the positive hydrogen's on one molecule align with the negative oxygen molecule of another water molecule. When these molecules align like this it creates a wall or barrier. This is the reason one should not drink water after eating something hot or spicy because it will create a wall trapping the spiciness in one's mouth.
I chose this topic because I am currently taking chemistry and I am interested in these topics. Also, we did a lab and a lot of research on this topic which only supported the inspiration for making my project based off of it because the way we were taught about the process was done on a white board drawn out and I think that most people learn better based on visual or hands on experience and that is what this 3D model was able to do.
The process I went through to make the 3D model consisted of making a cylinder and fillet the edges to create a circular object or a sphere. From there I added a smaller in width but longer in length cylinder to the top of the sphere. The second circle would then be made by creating another cylinder and again filleting the edges. The second small and long cylinder was created on the side of the sphere 90 degrees rotated from the other one by creating a new work plane on the side of the sphere. Once the second connecting cylinder was made, the last molecule was created by making another large cylinder extruding it and again filleting the edges to create a circle. When all these steps were complete, the final product was left of three spheres connected by two long cylinder like pieces.
The topic this model is based on is the molecules in chemistry and how they align when there are two or more of that molecule. In this case the molecule of water, H2O, was used to demonstrate this concept. In all molecules that are polar, for example H2O, there is a positively charged part of the molecule and a negatively charged part of the molecule. In the case of H2O, the Hydrogen molecules are positively charged and the oxygen molecule is negatively charged. When there are multiple molecules of H2O, they align in such a way where the positive hydrogen's on one molecule align with the negative oxygen molecule of another water molecule. When these molecules align like this it creates a wall or barrier. This is the reason one should not drink water after eating something hot or spicy because it will create a wall trapping the spiciness in one's mouth.
I chose this topic because I am currently taking chemistry and I am interested in these topics. Also, we did a lab and a lot of research on this topic which only supported the inspiration for making my project based off of it because the way we were taught about the process was done on a white board drawn out and I think that most people learn better based on visual or hands on experience and that is what this 3D model was able to do.
The process I went through to make the 3D model consisted of making a cylinder and fillet the edges to create a circular object or a sphere. From there I added a smaller in width but longer in length cylinder to the top of the sphere. The second circle would then be made by creating another cylinder and again filleting the edges. The second small and long cylinder was created on the side of the sphere 90 degrees rotated from the other one by creating a new work plane on the side of the sphere. Once the second connecting cylinder was made, the last molecule was created by making another large cylinder extruding it and again filleting the edges to create a circle. When all these steps were complete, the final product was left of three spheres connected by two long cylinder like pieces.