A school of fish

click to enlarge We have covered major body systems in our school before: the cardiovascular system , the nervous system , a genetics un...

We talked about semi-permeable membranes and how nutrients, oxygen, and other things pass from the capillaries to the cells, or the alveo...

Here you see Malachi, looking thrilled (ha ha--this is actually his serious scientist face) demonstrating the balloon lung model. As you ...

This unit had a lot of content but very few pictures, for some reason. I do have a few other posts I will put up, but I'll link most ...