Blood and lungs.

We created " blood cells" in a jar. You can see the red blood cells with some white cells floating in the plasma. The purple pom poms represent platelets.

The microscopes were great for examining blood cells and other cells on slides that we borrowed from the science department at KGS.

The next thing we looked at was the lungs and how they change when we breathe in and out.
We have a model lung in the classroom and here is Emma explaining what happens when we breathe.

We wanted to find out how our breathing changes when we exercise so we did an experiment. First we rested for two minutes and then counted how many times we breathed in a minute. Next we walked for two minutes and counted again. Finally we ran for two minutes and then counted. We did each action three times and took an average of each one. Most of us found that our breathing rate went up when we exercised.

Resting

Walking

Running