We visited our school garden today and had a lesson from some former Beck students on composting. In fact, they put our class in charge of taking care of the red wiggler worms, gathering food scraps, and composting some good soil to add to the garden. We now have 1,000 red wiggler worms in a composting container in our classroom.
This week in science we have been learning about how fluids, both air and water, can move, especially with convection currents. Monday our lab had students mix blue, cold water with clear room temperature water. They found the molecules in the cold water were closer together, making that water more dense. That explained why the blue water sank to the bottom when added. However, when we placed 60 degree Celsius water in a bag next to the vial, the blue water moved up on that side to the top. Then cooled, and returned towards the bottom on the opposite side. This lab really demonstrated convection currents in a very visual way. We will continue to learn more about them this week.
