Boat ProjectThe Great 9th Grade Boat Project
During the Boat Project there were simple rules, make boats from cardboard, packing tape and plastic bottles for two 9th grade students. Everyone was chosen into separate groups with 3 or 4 members, each member had a job Project Manager, Builder, Architecture together you were to make a cardboard boat. The maximum length of the boat is 6 feet, only corrugated cardboard, and clear postal tape that is two inches wide. To help build our boats we learned about volume, mass, density, buoyant force, center of buoyancy, center of gravity and Archimedes' Principle, Density. Learning all this together we were able to launch and paddle these boats across the bay at Spanish Landing. Density Density is the mass of an object divided by the volume of the object. Density can also be known as Mass per unit volume. When an object is placed on water if the object’s density is lees than the waters density. The object will float, if the object is more dense it will sink. Density and Liquids: In the demo there is five layers of liquids with different densities. They all have the same amount but each have different densities because they have different masses. The liquids with a higher density will sink under the liquids that are less dense. For example, the liquid at the very bottom is Honey. The density of Honey is 1.42. The liquid at the very top is Rubbing Alcohol, the density of Rubbing Alcohol is .79. So, Honey is more dense than Rubbing Alcohol therefore it sinks to the bottom. |
Boat Project reflectionWhen I made the foil boats I made them to the mini project goal hold as much weight as possible. So I made my tin foil boat have a huge flat base. When I made the cardboard boat I started to think about the final project goal of racing the boat to i changed the base and streamlined the design. For the final boat I kept the stream lined design.
I saw other groups working together effectively, by delegating tasks. I would want to change that aspect of my group. Archemides stated that the amount of water displaced is directly proportional to the force it is buoyed up on the object. This means the thing you want to float has to displace more water weight then it weighs. Here is the link to our exhibition video. http://www.youtube.com/watch?v=2ujDiAtftwQ |