Osmosis Lab

What is Osmosis?
Osmosis is a  process in which the molecules of a liquid pass through a semipermeable membrane from a less concentrated solution to a more concentrated. When it does this it balances out the concentration in both solutions.

Hypothesis
I predict that water will easily pass through a gummy bear. However my really hypothesis is, I believe that the warm water will pass through the gummy bear faster than room temperature water. The reason why I predict this will happen is because when ever you heat up anything the molecules get excited. So I think that because of the excited molecules that will try passing through the gummy bear fast than non heated water.

Materials

• Water (about 8 cups)
• Gummy bears (amount depends on how many tests you want to do)
• ruler
• timer
• clear glass container or cup
• thermometer

Procedure
First you have to acquire all of the materials, then get two of your cups and fill them with enough water to submerge the gummy bear. For one of the glasses of water heat it up with a temperature of higher than 80 degrees but no higher than 110 degrees or it will melt. The other glass just with room temperature water. Then put in both gummy bears. You can record there growth with the ruler at different time intervals. I did my every half an hour. Then you record the data. Repeat this process as many times as you want.  For the glass with the glass with the warmer water you have to refill the water with warm water. So you check it just replace the water.

If you look above is a time laps of a gummy bear in warmer water. You can't see it as well but a clear silhouette starts to form.

Above you can see that the gummy bear cannot withstand very high temperatures. It starts to melt away after awhile.

As you can see the gummy bear did increase in mass do to the osmosis affect. Tomorrow I will post another photo of it to see how much it has really grown.


Data Results
After 10 minutes the gummy bear in warm water melted and did not grow at all
The gummy bear in the room temperature did actually grow.  In all the gummy bear grew .12 inches in length and .6 inches. The data also showed that my hypothesis was incorrect and warmer water does not increase the speed of the osmosis liked affect. As you can see below the gummy bear in room temperature is much larger than the other.

Conclusion
In conclusion the water at room temperature demonstrated osmosis the best. The water entered the gummy bear like a cell membrane which then expanded it. It was interesting how the water didn't pass through all the way. It stayed just under the surface. I do believe that the temperature does affect the speed of osmosis. It's just the fact that I used gummy bears which allowed them to melt. In the next experiment I will try to used something that can withstand the heat.