Today in Chemistry 11 we ran a total of 4 experiment exploring water polarity.

Paper Chromatography

In this experiment we had a piece of paper with food coluring on it dipped into water. We watched the water go up the piece of paper and take the colouring with it. I used green food colouring so I also got to see it split into yellow and blue.

The food colouring didnt go up all the way with the water. This is because the paper and the water were fighting over bonding with the food colouring. In the end the paper won as the water kept goin leaving the food colouring behind.

Oil, water and soap mix

In this experiment we put some water into a test tube to which we added oil. The oil and water stayed seperated even after tyring to mix them together.

After I added soap to the tube before mixing the soap stayed inbetween the oil and water. After mixing the consistency of the soap and oil was snotty.

Lycopodium Powder

I covered the surface of a dish with water which I then sprinkled a layer of lycopodium powder over. The powder stayed on top of the powder. I then took a q-tip dipped in soap and put it in the cencter of the dish. The powder repelled rapadly away from the soap to the edges of the dish.

Water Tension

Not much to say about this one. The water was able to keep its bond between eachother even when there wasn’t anything supporting it from the sides.