Natural Science: unit 2 videos

Hi, kids!

Today I want to share two videos that can help you understand some of the contents we are studying these days in class. 

The first video is about your immune system (remember: the natural defenses your body has). 

The second explains some important concepts about weight, healthy diets...

I have watched the first with 4A, so don't worry if there are some words you don't understand because we will watch them in class. 

See you tomorrow :)

Ramón C.