Biology Lab Work

This is my photo of the experiment

The tube has lime water.The test consisted on to know how many times you blowed in the tube to know how much time it takes the lime water to turn white in the case of my test I had to blow 5 times so that the water turned whiter color in the photo If you can see at the top of the water there it is a thin layer of white bubbles that was what had to happen in this test.