I have come up with a way to separate the four recycled materials. I know the densities of all of the materials so I can use that to help separate the materials. The first material I will separate is the steel cans because I know that steel is magnetic. I will put all the materials on the conveyor belt which have powerful magnets above it so the steel cans powder will stick to the magnets. This leaves me with 3 other materials. The next material I will find is the milk jugs because its density is less than 1 which is waters density. I will put the rest of the materials in the large tank labeled water and only the milk jug powder will float, its density is 0.95, this is less than 1. The same rule kind of applies to the soda bottles and the concentrated sugar water. The density of the sugar water is 1.5 and the density of the soda bottles is 1.4 which is less than 1.5 meaning the powder of the soda bottles will float. Lastly, the nets at the bottom of the tanks have been catching all the materials that have sunk to the bottom. Since everything but the aluminium soda cans floated all that is left in the nets is the aluminium soda cans powder. That is how I plan on separating the materials.
Sincerely, Ramsie Goss
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