Evidence of Work:
Content: We used our knowledge of chemistry topics like balancing equations and elements to help us with this project. A synthesis reaction is defined as a chemical reaction in which two or more simple substances combine to form a more complex product (A+B--AB). A double displacement reaction is defined as chemical reaction where two compounds react and the positive and negative ions of the reactants switch places, forming two new compounds(AB+XY--AY+XB). Elements are involved in chemical reactions and their properties determine what will occur.
Equations: Single Replacement Reaction/Light LED: CuCl+Al - AlCl+Cu Double Displacement Reaction: 2Pl+Pb(NO3)2 - 2PNO3+Pbl2 Single Replacement Reaction: Zn+2HCl - 2H+ZnCl2 Production of Gas: 2KI+H2O2+dish soap - K2O2+2HI |
Description: For this project we had to make a board game and incorporate chemical reactions. After doing some brainstorming, we came up with a dinosaur theme and called our game ¨Prehistoric Chemistry¨. We included four reactions - two synthesis reactions+lighting on LED, double displacement reaction, and production of gas. Each chemical reaction had to have a domino effect. For example, in our double displacement reaction, a marble rolled down a ramp and hit a latch. That latch then hit another marble which also rolled down a ramp and hit a tube filled with a solution. The tube tipped over and the solution flowed into a funnel and onto a dish filled with another chemical. The chemicals used and the descriptions of all the reactions are below. My group and I had a few weeks to design and construct the board game, but we did the majority of the building the last week.
Reflection: One thing that my group and i had a difficult time on was making sure that in each reaction one chemical landed directly on top of the other. We were not given the actual chemicals until the day of the presentation, so we did not know if the reactions would occur. If we were to redo the project we would probably try to get ahold of the chemicals earlier on. Another difficulty we had was in our third reaction. In that reaction a marble would hit a block which had a piece of lead nitrate on the other side. That piece of lead was then supposed to fall into a chemical and a reaction would occur, but sometimes the led would get stuck. Also, some of the chemicals were not strong enough for the reaction to fully occur, but every part of our game worked at least once! We were able to finish our project and we all cooperated. We were also all open-minded and flexible. My favorite part of the project was in our fourth reaction because a volcano erupted. I learned more about chemicals and the types of reactions involved. |