posted by Suzie Chhouk
I know this section is devoted to chemistry related to the Earth, but I would also like to use this space to introduce the chemistry we understand of the universe as well. Plasma is the fourth state of matter - and the most common state of matter in the universe! Yet, we don't hear so much about it in our most basic chemistry classes... but that's probably because we didn't even know about until the late 19th century. Have no fear, Michael from SciShow explains!
from SciShow
from SciShow