May 25 we did a new lab today to check the difference in density between a can of regular coke and a can of diet coke.
coke_can.gif diet_coke.jpg
This is a three part series of Dani, Steph, Brit and Jenna's lab the other day. They had very fun doing this excersise. Well anwyas they were seeing what the difference in density is between a can of regular coke and a can of diet coke. So check them out to find out!!





The reason that the can of regular Coke sank is because the can of Coke is more dense than the water we put it in. The Diet Coke floated because it was less dense than the water. If an object is more dense (heavier, more volume) than the water we put it in then the object will sink; if the object is less dense (lighter, less volume) than the water we put it in, the object will float. An object will float when it displaces the amount of water it weighs. So If we put an object that weighs 28 n (newtons) in a tank of water, it will not float untill it displaces 28 n of water. Sometimes an object can not displace the amount of water it needs so therefore, it will sink. If the buoyant pressure from the tank of water is 16n and the objects pressure is 20 n the object will sink. But if the water's buoyant pressure is 16n and the object's buoyant pressure is 14n then the object will float. -Leah. H.