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

The Human Body

This term we are studying the human body. We started off by researching the yucky things like burps and earwax and creating powerpoints or posters to present to the rest of the class. It was a bit gross but interesting!

We moved on to the digestive system and created a "stomach" with a paper tube and poly bag filled with water. We "fed" it with some bread so that we could get the idea of food being broken down by acid in the stomach.

We tried to look at fat globules in milk but our microscopes were not powerful enough. Instead we made a "lava lamp" with coloured water and oil to show what it might look like.
The addition of fizzy alka seltzer made an interesting effect in the bottle.

We are even growing a brain in the classroom!