Monday

We watched hot air expand and cold air contract today through two different experiments. We put a balloon in hot water and it expanded. Then we put it in cold water and it contracted. Then we did a short experiment on convection by putting a green ice cube in warm water. First hour the experiement didn't work because the water was in motion. But in 4th and 5th hour we made sure the water was still and the convection current was obvious. We will redo the experiment in first hour tomorrow.

Reading for tonight's homework in E78-E91. Some students are going to remediation to assure that they understand the information in the assignment.